FOREWORD This wiring diagram manual has been prepared to provide information on the electrical system of the 2002 PRIUS...
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FOREWORD This wiring diagram manual has been prepared to provide information on the electrical system of the 2002 PRIUS.
Applicable models: NHW11 Series
For service specifications and repair procedures of the above models other than those listed in this manual, refer to the following manuals;
Manual Name 2002 PRIUS Repair Manual Volume 1 Volume 2 2002 TOYOTA New Car Features
Pub. No. RM883U1 RM883U2 NCF214U
All information in this manual is based on the latest product information at the time of publication. However, specifications and procedures are subject to change without notice.
CAUTION When repairing the hybrid vehicle (HV), always follow the direction given in the repair manual listed above to prevent electrical shock, leakage or explosion.
NOTICE When handling supplemental restraint system components (removal, installation or inspection, etc.), always follow the direction given in the repair manuals listed above to prevent accidents and supplemental restraint system malfunction.
2002 PRIUS (EWD464U)
A INTRODUCTION This manual consists of the following 13 sections: No.
Section
Description
INDEX
Index of the contents of this manual.
INTRODUCTION
Brief explanation of each section.
B
HOW TO USE THIS MANUAL
Instructions on how to use this manual.
C
TROUBLE– SHOOTING
Describes the basic inspection procedures for electrical circuits.
D
ABBREVIATIONS
Defines the abbreviations used in this manual.
E
GLOSSARY OF TERMS AND SYMBOLS
Defines the symbols and functions of major parts.
F
RELAY LOCATIONS
Shows position of the Electronic Control Unit, Relays, Relay Block, etc. This section is closely related to the system circuit.
G
ELECTRICAL WIRING ROUTING
Describes position of Parts Connectors, Splice points, Ground points, etc. This section is closely related to the system circuit.
INDEX
Index of the system circuits.
SYSTEM CIRCUITS
Electrical circuits of each system are shown from the power supply through ground points. Wiring connections and their positions are shown and classified by code according to the connection method. (Refer to the section, ”How to use this manual”). The ”System Outline” and ”Service Hints” useful for troubleshooting are also contained in this section.
I
GROUND POINT
Shows ground positions of all parts described in this manual.
J
POWER SOURCE (Current Flow Chart)
Describes power distribution from the power supply to various electrical loads.
K
CONNECTOR LIST
Describes the form of the connectors for the parts appeared in this book. This section is closely related to the system circuit.
L
PART NUMBER OF CONNECTORS
Indicates the part number of the connectors used in this manual.
M
OVERALL ELECTRICAL WIRING DIAGRAM
Provides circuit diagrams showing the circuit connections.
A
H
2002 PRIUS (EWD464U)
HOW TO USE THIS MANUAL B This manual provides information on the electrical circuits installed on vehicles by dividing them into a circuit for each system. The actual wiring of each system circuit is shown from the point where the power source is received from the battery as far as each ground point. (All circuit diagrams are shown with the switches in the OFF position.) When troubleshooting any problem, first understand the operation of the circuit where the problem was detected (see System Circuit section), the power source supplying power to that circuit (see Power Source section), and the ground points (see Ground Point section). See the System Outline to understand the circuit operation. When the circuit operation is understood, begin troubleshooting of the problem circuit to isolate the cause. Use Relay Location and Electrical Wiring Routing sections to find each part, junction block and wiring harness connectors, wiring harness and wiring harness connectors, splice points, and ground points of each system circuit. Internal wiring for each junction block is also provided for better understanding of connection within a junction block. Wiring related to each system is indicated in each system circuit by arrows (from__, to__). When overall connections are required, see the Overall Electrical Wiring Diagram at the end of this manual.
2002 PRIUS (EWD464U)
B HOW TO USE THIS MANUAL ∗ The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.
[A]
STOP LIGHT FROM POWER SOURCE SYSTEM (SEE PAGE 66)
,,,,,,,,,, ,,,,,,,,,, ,,,,,,,,,, ,,,,,,,,,, ,,,,,,,,,, ,,,,,,,,,, ,,,,,,,,,, ,,,,,,,,,, ,,,,,,,,,, [C]
15A STOP
7. 5A GAUGE
4 IB
2
1
,,,, @@@@ ÀÀÀÀ @@@@ ÀÀÀÀ ,,,, @@@@ ÀÀÀÀ ,,,, @@@@ ÀÀÀÀ ,,,, @@@@ ÀÀÀÀ ,,,, @@@@ ÀÀÀÀ ,,,, @@@@ ÀÀÀÀ ,,,, 7 3C
[G]
15 3C R–L
W–R
R (W/G)
3 IB
L (S/D)
[B]
R–L
4 2
C7 REAR LIGHTS WARNING LIGHT [COMB. METER]
S6 STOP LIGHT SW 14
[E]
IE1
13
1 G–W
[D]
L (S/D)
I5
[F]
G–W
Y–G
G–W TO ABS ECU
[H]
7
L4 LIGHT FAILURE SENSOR
8 DELAY CIRCUIT
[J]
B18
H17 HIGH MOUNTED STOP LIGHT
[L] 1
W–B B18 W–B
1 BV1
W–B
W–B
W–B
3
2
BO
50
[M]
BL
[N]
2002 PRIUS (EWD464U)
W–B
4
[K]
(SHIELDED) R6 STOP LIGHT RH [REAR COMB. LIGHT LH]
R7 STOP LIGHT RH [REAR COMB. LIGHT RH]
G–R
G–R
G–R
1 BV1
3
11
G
[I]
4
1
G–R
2
4
B [I]
[A] : System Title [B] : Indicates a Relay Block. No shading is used and only the Relay Block No. is shown to distinguish it from the J/B Example:
Indicates Relay Block No.1
: Indicates the wiring color. Wire colors are indicated by an alphabetical code. B
= Black
W = White
BR = Brown
L
= Blue
V
SB = Sky Blue
= Violet
R = Red
G = Green
LG = Light Green
[C] : ( ) is used to indicate different wiring and connector, etc. when the vehicle model, engine type, or specification is different.
P
Y
GR = Gray
[D] : Indicates related system.
The first letter indicates the basic wire color and the second letter indicates the color of the stripe.
[E] : Indicates the wiring harness and wiring harness connector. The wiring harness with male terminal is shown with arrows ( ). Outside numerals are pin numbers.
= Pink
= Yellow
O = Orange
Example:
L–Y
L (Blue)
Female
Male (
Y (Yellow)
[J] : Indicates a wiring Splice Point (Codes are ”E” for the Engine Room, ”I” for the Instrument Panel, and ”B” for the Body).
)
The first letter of the code for each wiring harness and wiring harness connector(s) indicates the component’s location, e.g, ”E” for the Engine Compartment, ”I” for the Instrument Panel and Surrounding area, and ”B” for the Body and Surrounding area. When more than one code has the first and second letters in common, followed by numbers (e.g, IH1, IH2), this indicates the same type of wiring harness and wiring harness connector. [F] : Represents a part (all parts are shown in sky blue). The code is the same as the code used in parts position. [G] : Junction Block (The number in the circle is the J/B No. and the connector code is shown beside it). Junction Blocks are shaded to clearly separate them from other parts.
Example:
,,,, ,,,, 3C indicates ,,,, that it is inside ,,,, Junction Block ,,,, No.3 ,,,, ,,,,
The Location of splice Point I 5 is indicated by the shaded section. [K] : Indicates a shielded cable.
[L] : Indicates the pin number of the connector. The numbering system is different for female and male connectors. Example: Numbered in order from upper left to lower right
Female
Numbered in order from upper right to lower left
Male
[M] : Indicates a ground point. [H] : When 2 parts both use one connector in common, the parts connector name used in the wire routing section is shown in square brackets [ ].
The first letter of the code for each ground point(s) indicates the component’s location, e.g, ”E” for the Engine Compartment, ”I” for the Instrument Panel and Surrounding area, and ”B” for the Body and Surrounding area. [N] : Page No.
2002 PRIUS (EWD464U)
B HOW TO USE THIS MANUAL [O]
SYSTEM OUTLINE Current is applied at all times through the STOP fuse to TERMINAL 2 of the stop light SW. When the ignition SW is turned on, current flows from the GAUGE fuse to TERMINAL 8 of the light failure sensor, and also flows through the rear lights warning light to TERMINAL 4 of the light failure sensor. STOP LIGHT DISCONNECTION WARNING When the ignition SW is turned on and the brake pedal is pressed (Stop light SW on), if the stop light circuit is open, the current flowing from TERMINAL 7 of the light failure sensor to TERMINALS 1, 2 changes, so the light failure sensor detects the disconnection and the warning circuit of the light failure sensor is activated. As a result, the current flows from TERMINAL 4 of the light failure sensor to TERMINAL 11 to GROUND and turns the rear lights warning light on. By pressing the brake pedal, the current flowing to TERMINAL 8 of the light failure sensor keeps the warning circuit on and holds the warning light on until the ignition SW is turned off.
[P]
SERVICE HINTS S6 STOP LIGHT SW 2–1 : Closed with the brake pedal depressed L4 LIGHT FAILURE SENSOR 1, 2, 7–GROUND : Approx. 12 volts with the stop light SW on 4, 8–GROUND : Approx. 12 volts with the ignition SW at ON position 11–GROUND : Always continuity
[Q]
: PARTS LOCATION Code
See Page
See Page
Code
See Page
34
L4
36
R7
37
H17
36
R6
37
S6
35
: RELAY BLOCKS
[R] Code 1
[S]
Code
C7
@@@ ÀÀÀ ,,, ,,, @@@ ÀÀÀ ,,, @@@ ÀÀÀ Code
See Page 18
Relay Blocks (Relay Block Location) R/B No.1 (Instrument Panel Left)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR See Page
Junction Block and Wire Harness (Connector Location)
IB
20
Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
3C
22
Instrument Panel Wire and J/B No.3 (Instrument Panel Left Side)
[T]
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IE1
42
Floor Wire and Instrument Panel Wire (Left Kick Panel)
BV1
50
Luggage Room Wire and Floor Wire (Luggage Compartment Left)
[U]
: GROUND POINTS Code
See Page
Ground Points Location
BL
50
Under the Left Quarter Pillar
BO
50
Back Panel Center
[V]
: SPLICE POINTS Code I5
See Page 44
Wire Harness with Splice Points Cowl Wire
Code B18
2002 PRIUS (EWD464U)
See Page 50
Wire Harness with Splice Points Luggage Room Wire
B [O] : Explains the system outline. [P] : Indicates values or explains the function for reference during troubleshooting. [Q] : Indicates the reference page showing the position on the vehicle of the parts in the system circuit. Example : Part ”L4” (Light Failure Sensor) is on page 36 of the manual. ∗ The letter in the code is from the first letter of the part, and the number indicates its order in parts starting with that letter. Example : L 4
Á Á
Parts is 4th in order Light Failure Sensor
[R] : Indicates the reference page showing the position on the vehicle of Relay Block Connectors in the system circuit. Example : Connector ”1” is described on page 18 of this manual and is installed on the left side of the instrument panel. [S] : Indicates the reference page showing the position on the vehicle of J/B and Wire Harness in the system circuit. Example : Connector ”3C” connects the Instrument Panel Wire and J/B No.3. It is described on page 22 of this manual, and is installed on the instrument panel left side. [T] : Indicates the reference page describing the wiring harness and wiring harness connector (the female wiring harness is shown first, followed by the male wiring harness). Example : Connector ”IE1” connects the floor wire (female) and Instrument panel wire (male). It is described on page 42 of this manual, and is installed on the left side kick panel. [U] : Indicates the reference page showing the position of the ground points on the vehicle. Example : Ground point ”BO” is described on page 50 of this manual and is installed on the back panel center. [V] : Indicates the reference page showing the position of the splice points on the vehicle. Example : Splice point ”I5” is on the Cowl Wire Harness and is described on page 44 of this manual.
2002 PRIUS (EWD464U)
B HOW TO USE THIS MANUAL The ground points circuit diagram shows the connections from all major parts to the respective ground points. When troubleshooting a faulty ground point, checking the system circuits which use a common ground may help you identify the problem ground quickly. The relationship between ground points ( EA , IB and IC shown below) can also be checked this way.
I GROUND POINT FAN MAIN RELAY
5
A/C FAN RELAY NO.2
5
A/C FAN RELAY NO.3
5
E3
O/D MAIN SW
E3
CLOCK
W–B
W–B
A
A
A
A
E5
E6
W–B
FRONT SIDE MARKER LIGHT RH
W–B
FRONT SIDE MARKER LIGHT LH
W–B
BRAKE FLUID LEVEL WARNING SW W–B
W–B
,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,, ,,,,
W–B
I4 W–B
2 IA1
B4
COMBINATION METER W–B
1 3D
W–B
CRUISE CONTROL MIRROR SW
3 3F
W–B
REMOTE CONTROL MIRROR SW
13 3G
W–B TURN SIGNAL FLASHER
5 W–B 3E
I2
REAR WINDOW DEFOGGER SW
6 3E
I2
LIGHT CONTROL SW [COMB. SW] WIPER AND WASHER SW [COMB. SW]
W–B
I5
15 ID1
W–B
W–B I5
W–B
W–B BLOWER RESISTOR 8 IB1 W–B
I8
W–B A/C AMPLIFIER
4
4
POWER WINDOW CONTROL RELAY
B5
DOOR KEY LOCK SW LH
B5
DOOR LOCK CONTROL SW
FUEL CONTROL SW 3 IC3
I5
W–B WOOFER AMPLIFIER BR
COMBINATION METER
4 BR
BR 4
I3
BR I3
COMBINATION METER BR FUEL SENDER
W–B
4
BR
BR
5 BA1
W–B
AUTO ANTENNA MOTOR
B5
(4A–GZE)
W–B HEATER RELAY
POWER WINDOW MASTER SW
I5
4 W–B
BR
B5
DOOR LOCK MOTOR LH W–B
4 RADIO AND PLAYER
UNLOCK WARNING SW
W–B
W–B
HORN SW [COMB. SW] DIMMER SW [COMB. SW]
I2
W–B
10 EA2
I4
BLOWER SW
I5
W–B
B4
W–B
I6
W–B
EA
ELECTRICAL IDLE−UP CUT RELAY (M/T)
HEATER SERVO MOTOR AMPLIFIER
PARKING BRAKE SW
7 W–B 3C
E4
B4
I6
W–B
7 3B
W–B
DOOR LOCK MOTOR RH
A
E5
E4
W–B HEATER CONTROL ASSEMBLY
J1 JUNCTION CONNECTOR
W–B
W–B
W–B
E4
W–B
DOOR KEY LOCK SW RH
A
E2
E4
W–B
W–B
E3
W–B
DOOR LOCK CONTROL SW RH
DOOR LOCK CONTROL RELAY
CIGARETTE LIGHTER
E3
W–B
RETRACT MOTOR LH
PARKING LIGHT LH
W–B
W–B
RETRACT MOTOR RH
FRONT TURN SIGNAL LIGHT LH
W–B
W–B
RETRACT CONTROL RELAY
PARKING LIGHT RH
W–B
W–B
RADIATOR FAN MOTOR
FRONT TURN SIGNAL LIGHT RH
W–B
W–B
5
W–B
FAN MAIN RELAY
IB
∗
IC
The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.
2002 PRIUS (EWD464U)
B The ”Current Flow Chart” section, describes which parts each power source (fuses, fusible links, and circuit breakers) transmits current to. In the Power Source circuit diagram, the conditions when battery power is supplied to each system are explained. Since all System Circuit diagrams start from the power source, the power source system must be fully understood.
J POWER SOURCE (Current Flow Chart) The chart below shows the route by which current flows from the battery to each electrical source (Fusible Link, Circuit Breaker, Fuse, etc.) and other parts. 10A ECU–B Short Pin
2
2 7.5A DOME
15A EFI Battery
30A AM2
Fusible Link Block
2
10A HAZARD
6
2 20A RADIO NO.1 Starter
S2 10A HORN 100A ALT
60A ABS
6
5
Engine Room R/B (See Page 20) Fuse 20A
10A
System
Page
STOP
ABS ABS and Traction Control Cruise Control Electronically Controlled Transmission and A/T Indicator Multiplex Communication System
194 187 180 166 210
DOME
Cigarette Lighter and Clock Combination Meter Headlight Interior Light Key Reminder and Seat Belt Warning Light Auto Turn Off Theft Deterrent and Door Lock Control
214 230 112 122
POWER SOURCE
40A DOOR LOCK CB 1.25B FL MAIN
W
W
W
2
2
7 EB1
W
W
B
W
B
1
7.5A DOME
I2 50A MAIN
E7
2
W–L
W
W
W
I2
1
1
R
W I2
1
B
W 1
W
B
2
2
4
W–B 2
B
4
B
B
2
3
2
4
1
2
1
W–B 2
2
3
3
2
B–W
1
G
15A TAIL 1
20A DEFOG
B–Y 1
G
W–R 1
B
2
1
4
I8 IGNITION SW
B–W
STARTER RELAY
E7
8
IG1
3
ACC
2
1
IG2
B
2
1 TAIL RELAY
INJECTION RELAY B–O
E7
2 W
15A HAZ–RADIO
AM1
2
6 EB1 W–R
W–R 2
AM2
E7
7.5A AM2
B
G–W
W
BATTERY 3 EA2 1 EA1
W–B
1
1
E6
15A RAD CIG
B–Y 1
∗
P–L 1
The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.
2002 PRIUS (EWD464U)
B HOW TO USE THIS MANUAL K CONNECTOR LIST [A]
I14
I15
DARK GRAY
GRAY
1
1
2
I16
J1
J2
BLACK
2
A A
1 2
A A
A
A B B D D A A B CC CD D
A
6 7 8
[B]
J3
J4
K1
K2
L1
1 2
1 2
DARK GRAY A A A A A A A A
A B B DD A A B CC CDD
L2
L3
L4
M1
M2
1 2 3 4 5 6 7 8 9 101112
1 2 3 45 6 78
M3
1 2
1
1 2 3 4
2
M4
[D]
N1 GRAY
1 2 3
[C]
BLACK
GRAY 1
1
1 7
5
6
2 3 4 8 9 10
N2
O1
O2
GRAY
BLACK
DARK GRAY
1
1
1
2
[A] : Indicates connector to be connected to a part. (The numeral indicates the pin No.) [B] : Junction Connector Indicates a connector which is connected to a short terminal. Junction Connector
Junction connector in this manual include a short terminal which is connected to a number of wire harnesses. Always perform inspection with the short terminal installed. (When installing the wire harnesses, the harnesses can be connected to any position within the short terminal grouping. Accordingly, in other vehicles, the same position in the short terminal may be connected to a wire harness from a different part.) Wire harness sharing the same short terminal grouping have the same color. Same Color
Short Terminal
[C] : Parts Code The first letter of the code is taken from the first letter of part, and the numbers indicates its order in parts which start with the same letter. [D] : Connector Color Connectors not indicated are milky white in color.
2002 PRIUS (EWD464U)
B L PART NUMBER OF CONNECTORS Code A1
Part Name A/C Ambient Temp. Sensor
Part Name
Part Number
Part Number
Code
90980–11070
D4
Diode (Door Courtesy Light)
90980–11608 90980–10962
A2
A/C Condenser Fan Motor
90980–11237
D5
Diode (Key Off Operation)
A3
A/C Condenser Fan Relay
90980–10940
D6
Diode (Luggage Compartment Light)
90980–11608
D7
Door Lock Control Relay
90980–10848
ÁÁ ÁÁ A4
[A] A5
A/C Triple Pressure SW (A/C Dual and Single Pressure SW) A/T Oil Temp. Sensor
[B]
ÁÁ ÁÁ
90980–10943 D8
Door Courtesy Light LH
[C] 90980–11413
D9
Door Courtesy Light RH
90980–11148
A6
ABS Actuator
90980–11151
D10
Door Courtesy SW LH
A7
ABS Actuator
90980–11009
D11
Door Courtesy SW RH
A8
ABS Speed Sensor Front LH
90980–10941
D12
Door Courtesy SW Front LH
A9
ABS Speed Sensor Front RH
90980–11002
D13
Door Courtesy SW Front RH
A10
Airbag Sensor Front LH
D14
Door Courtesy SW Rear LH
A11
Airbag Sensor Front RH
A12
Auto Antenna Motor
90980–11097
90980–11856 D15
Door Courtesy SW Rear RH
90980–11194
D16
Door Key Lock and Unlock SW LH
90980–11194
D17
Door Key Lock and Unlock SW RH
90980–11156
90980–11170
[A] : Part Code [B] : Part Name [C] : Part Number Toyota Part Number are indicated. Not all of the above part numbers of the connector are established for the supply. In case of ordering a connector or terminal with wire, please confirm in advance if there is supply for it using “Parts Catalog News” (published by Parts Engineering Administration Dept.).
2002 PRIUS (EWD464U)
C TROUBLESHOOTING To Ignition SW IG Terminal
Fuse [A]
SW 1
Voltmeter [B]
VOLTAGE CHECK (a) Establish conditions in which voltage is present at the check point. Example: [A] – Ignition SW on [B] – Ignition SW and SW 1 on [C] – Ignition SW, SW 1 and Relay on (SW 2 off) (b) Using a voltmeter, connect the negative lead to a good ground point or negative battery terminal, and the positive lead to the connector or component terminal. This check can be done with a test light instead of a voltmeter.
Relay [C]
Solenoid
SW 2
CONTINUITY AND RESISTANCE CHECK (a) Disconnect the battery terminal or wire so there is no voltage between the check points. (b) Contact the two leads of an ohmmeter to each of the check points.
Ohmmeter
SW
If the circuit has diodes, reverse the two leads and check again. When contacting the negative lead to the diode positive side and the positive lead to the negative side, there should be continuity. When contacting the two leads in reverse, there should be no continuity.
Ohmmeter
Diode
(c) Use a volt/ohmmeter with high impedance (10 kΩ/V minimum) for troubleshooting of the electrical circuit. Digital Type
Analog Type
2002 PRIUS (EWD464U)
C To Ignition SW IG Terminal
Test Light
Fuse Case Short [A]
SW 1 Short [B] Disconnect Disconnect Light
(a) Remove the blown fuse and disconnect all loads of the fuse. (b) Connect a test light in place of the fuse. (c) Establish conditions in which the test light comes on. Example: [A] – Ignition SW on [B] – Ignition SW and SW 1 on [C] – Ignition SW, SW 1 and Relay on (Connect the Relay) and SW 2 off (or Disconnect SW 2) (d) Disconnect and reconnect the connectors while watching the test light. The short lies between the connector where the test light stays lit and the connector where the light goes out. (e) Find the exact location of the short by lightly shaking the problem wire along the body.
CAUTION:
Relay Short [C]
Disconnect SW 2
FINDING A SHORT CIRCUIT
(a) Do not open the cover or the case of the ECU unless absolutely necessary. (If the IC terminals are touched, the IC may be destroyed by static electricity.) (b) When replacing the internal mechanism (ECU part) of the digital meter, be careful that no part of your body or clothing comes in contact with the terminals of leads from the IC, etc. of the replacement part (spare part).
Solenoid
DISCONNECTION OF MALE AND FEMALE CONNECTORS To pull apart the connectors, pull on the connector itself, not the wire harness. HINT : Check to see what kind of connector you are disconnecting before pulling apart.
Pull Up
Pull Up
Press Down
Press Down
2002 PRIUS (EWD464U)
C TROUBLESHOOTING HOW TO REPLACE TERMINAL (with terminal retainer or secondary locking device)
Reference:
1. PREPARE THE SPECIAL TOOL
10 3
1
HINT : To remove the terminal from the connector, please construct and use the special tool or like object shown on the left. 2. DISCONNECT CONNECTOR
1 Example: (Case 1)
0.2 (mm)
Up
Tool
3. DISENGAGE THE SECONDARY LOCKING DEVICE OR TERMINAL RETAINER. (a) Locking device must be disengaged before the terminal locking clip can be released and the terminal removed from the connector. (b) Use a special tool or the terminal pick to unlock the secondary locking device or terminal retainer. NOTICE: Do not remove the terminal retainer from connector body.
Terminal Retainer
[A] Terminal Retainer
For Non–Waterproof Type Connector HINT : The needle insertion position varies according to the connector’s shape (number of terminals etc.), so check the position before inserting it.
[Retainer at Full Lock Position]
Stopper
”Case 1” Raise the terminal retainer up to the temporary lock position.
Terminal Retainer
[Retainer at Temporary Lock Position]
Example: (Case 2)
Secondary Locking Device
”Case 2” Open the secondary locking device.
2002 PRIUS (EWD464U)
C Tool Tab
Tab
Example: (Case 1)
[B]
Terminal Retainer
Tool [Male]
Access Hole ( Mark)
Tool
For Waterproof Type Connector HINT : Terminal retainer color is different according to connector body. Example: Terminal Retainer Black or White Black or White Gray or White
: Connector Body : Gray : Dark Gray : Black
[Female]
”Case 1” Type where terminal retainer is pulled up to the temporary lock position (Pull Type). Insert the special tool into the terminal retainer access hole (Mark) and pull the terminal retainer up to the temporary lock position. HINT : The needle insertion position varies according to the connector’s shape (Number of terminals etc.), so check the position before inserting it.
Retainer at Full Lock Position
Retainer at Temporary Lock Position [Male]
Example: (Case 2)
[Female]
”Case 2” Type which cannot be pulled as far as Power Lock insert the tool straight into the access hole of terminal retainer as shown.
Terminal Retainer
Tool
Tool
[Male]
Press Down
Press Down [Female]
2002 PRIUS (EWD464U)
C TROUBLESHOOTING Push the terminal retainer down to the temporary lock position.
Retainer at Full Lock Position
Retainer at Temporary Lock Position [Male]
[Female]
(c) Release the locking lug from terminal and pull the terminal out from rear.
Locking Lug
Tool
4. INSTALL TERMINAL TO CONNECTOR (a) Insert the terminal. HINT: 1. Make sure the terminal is positioned correctly. 2. Insert the terminal until the locking lug locks firmly. 3. Insert the terminal with terminal retainer in the temporary lock position.
(b) Push the secondary locking device or terminal retainer in to the full lock position. 5. CONNECT CONNECTOR
2002 PRIUS (EWD464U)
ABBREVIATIONS D ABBREVIATIONS The following abbreviations are used in this manual. ABS
=
Anti–Lock Brake System
A/C
=
Air Conditioning
COMB. =
Combination
DC
=
Direct Current
ECU
=
Electronic Control Unit
EMPS
=
Electric Motor Power Steering
ESA
=
Electronic Spark Advance
EVAP
=
Evaporative Emission
HV
=
Hybrid Vehicle
J/B
=
Junction Block
LH
=
Left–Hand
PTC
=
Positive Temperature Coefficient
R/B
=
Relay Block
RH
=
Right–Hand
SFI
=
Sequential Multiport Fuel Injection
SRS
=
Supplemental Restraint System
SW
=
Switch
TEMP.
=
Temperature
VSV
=
Vacuum Switching Valve
w/
=
With
w/o
=
Without
∗ The titles given inside the components are the names of the terminals (terminal codes) and are not treated as being abbreviations.
2002 PRIUS (EWD464U)
E GLOSSARY OF TERMS AND SYMBOLS GROUND The point at which wiring attaches to the Body, thereby providing a return path for an electrical circuit; without a ground, current cannot flow.
BATTERY Stores chemical energy and converts it into electrical energy. Provides DC current for the auto’s various electrical circuits. CAPACITOR (Condenser) A small holding unit for temporary storage of electrical voltage.
CIGARETTE LIGHTER An electric resistance heating element.
HEADLIGHTS Current flow causes a headlight 1. SINGLE filament to heat up and emit light. A FILAMENT headlight may have either a single (1) filament or a double (2) filament
2. DOUBLE FILAMENT
CIRCUIT BREAKER Basically a reusable fuse, a circuit breaker will heat and open if too much current flows through it. Some units automatically reset when cool, others must be manually reset.
HORN An electric device which sounds a loud audible signal.
DIODE A semiconductor which allows current flow in only one direction.
IGNITION COIL Converts low–voltage DC current into high–voltage ignition current for firing the spark plugs.
DIODE, ZENER
LIGHT Current flow through a filament causes the filament to heat up and emit light.
A diode which allows current flow in one direction but blocks reverse flow only up to a specific voltage. Above that potential, it passes the excess voltage. This acts as a simple voltage regulator.
PHOTODIODE The photodiode is a semiconductor which controls the current flow according to the amount of light.
LED (LIGHT EMITTING DIODE) Upon current flow, these diodes emit light without producing the heat of a comparable light.
DISTRIBUTOR, IIA Channels high–voltage current from the ignition coil to the individual spark plugs.
METER, ANALOG Current flow activates a magnetic coil which causes a needle to move, thereby providing a relative display against a background calibration.
FUSE
METER, DIGITAL Current flow activates one or many LED’s, LCD’s, or fluorescent displays, which provide a relative or digital display.
A thin metal strip which burns through when too much current flows through it, thereby stopping current flow and protecting a circuit from damage.
FUEL
FUSIBLE LINK (for Medium Current Fuse)
(for High Current Fuse or Fusible Link)
A heavy–gauge wire placed in high amperage circuits which burns through on overloads, thereby protecting the circuit. The numbers indicate the crosssection surface area of the wires.
M
2002 PRIUS (EWD464U)
MOTOR A power unit which converts electrical energy into mechanical energy, especially rotary motion.
E RELAY Basically, an electrically operated 1. NORMALLY switch which may be normally CLOSED closed (1) or open (2). Current flow through a small coil creates a magnetic field which either opens or closes an attached switch.
SPEAKER An electromechanical device which creates sound waves from current flow.
2. NORMALLY OPEN
SWITCH, MANUAL 1. NORMALLY OPEN
RELAY, DOUBLE THROW A relay which passes current through one set of contacts or the other.
Opens and closes circuits, i it thereby th b stopping (1) or allowing (2) current flow.
2. NORMALLY CLOSED
RESISTOR An electrical component with a fixed resistance, placed in a circuit to reduce voltage to a specific value.
SWITCH, DOUBLE THROW A switch which continuously passes current through one set of contacts or the other.
RESISTOR, TAPPED A resistor which supplies two or more different non adjustable resistance values.
SWITCH, IGNITION A key operated switch with several positions which allows various circuits, particularly the primary ignition circuit, to become operational.
RESISTOR, VARIABLE or RHEOSTAT A controllable resistor with a variable rate of resistance. Also called a potentiometer or rheostat. SENSOR (Thermistor) A resistor which varies its resistance with temperature.
SWITCH, WIPER PARK Automatically returns wipers to the stop position when the wiper switch is turned off.
SENSOR, SPEED Uses magnetic impulses to open and close a switch to create a signal for activation of other components.
TRANSISTOR A solidstate device typically used as an electronic relay; stops or passes current depending on the voltage applied at ”base”.
(Reed Switch Type)
SHORT PIN Used to provide an unbroken connection within a junction block.
SOLENOID An electromagnetic coil which forms a magnetic field when current flows, to move a plunger, etc.
2002 PRIUS (EWD464U)
WIRES Wires are always drawn as (1) NOT straight lines on wiring CONNECTED diagrams. Crossed wires (1) without a black dot at the junction are j nott joined; j i d crossed wires (2) with a black dot or octagonal ( ) (2) SPLICED mark at the junction are spliced (joined) connections.
F RELAY LOCATIONS [Engine Compartment]
[Instrument Panel]
2002 PRIUS (EWD464U)
F [Body]
2002 PRIUS (EWD464U)
F RELAY LOCATIONS Fusible Link Block No.1
Engine Compartment Left (See Page 20)
2002 PRIUS (EWD464U)
F Fusible Link Block No.2
2
Luggage Room Left (See Page 21)
: Engine Room R/B No.2 Right Side of Reserve Tank (See Page 20)
2002 PRIUS (EWD464U)
F RELAY LOCATIONS 3
: Engine Room R/B No.3 Engine Compartment Right (See Page 20)
2002 PRIUS (EWD464U)
MEMO
2002 PRIUS (EWD464U)
F RELAY LOCATIONS ,,, ,,, ,,,: Engine Room J/B
Engine Compartment Left (See Page 20)
2002 PRIUS (EWD464U)
F
2002 PRIUS (EWD464U)
F RELAY LOCATIONS [Engine Room J/B Inner Circuit]
2002 PRIUS (EWD464U)
F
2002 PRIUS (EWD464U)
F RELAY LOCATIONS ,,, ,,, ,,,: Instrument Panel J/B
Cowl Side Panel LH (See Page 20)
2002 PRIUS (EWD464U)
F
2002 PRIUS (EWD464U)
F RELAY LOCATIONS [Instrument Panel J/B Inner Circuit]
2002 PRIUS (EWD464U)
F
2002 PRIUS (EWD464U)
G ELECTRICAL WIRING ROUTING Position of Parts in Engine Compartment
A 1 A/C Condenser Fan Motor A 2 A/C Magnetic Clutch and Lock Sensor A 3 A/C Triple Pressure SW (A/C Dual and Single Pressure SW) A 4 ABS Speed Sensor Front LH A 5 ABS Speed Sensor Front RH A 6 Ambient Temp. Sensor B B B B
1 2 3 4
Brake Actuator Brake Actuator Brake Actuator Brake Fluid Level Warning SW
C C C C C C
1 2 3 4 5 6
Camshaft Position Sensor Camshaft Timing Oil Control Valve Circuit Breaker Sensor Converter Converter Crankshaft Position Sensor
F 1 F 2 F 3 F 4 F 5 F 6 F 7 F 8 F 9 F 10 F 11 F 12 F 13
Front Airbag Sensor LH Front Airbag Sensor RH Front Parking Light LH Front Parking Light RH Front Side Marker Light LH Front Side Marker Light RH Front Turn Signal Light LH Front Turn Signal Light RH Front Wiper Motor Fusible Link Block No.1 Fusible Link Block No.1 Fusible Link Block No.1 Fusible Link Block No.1
H H H H H H
Headlight LH Headlight RH Heated Oxygen Sensor (Bank 1 Sensor1) Horn Hydraulic Booster Hydraulic Booster
1 2 3 4 5 6
D 1 DC Motor E 1 Engine Coolant Temp. Sensor E 2 Engine Hood Courtesy SW
2002 PRIUS (EWD464U)
G Position of Parts in Engine Compartment
I I I I I I I I I I I I I I
1 2 3 4 5 6 7 8 9 10 11 12 13 14
Ignition Coil and Igniter No.1 Ignition Coil and Igniter No.2 Ignition Coil and Igniter No.3 Ignition Coil and Igniter No.4 Injector No.1 Injector No.2 Injector No.3 Injector No.4 Inverter Inverter Inverter Inverter Inverter Inverter
N 1 Noise Filter (Ignition) O 1 Oil Pressure SW R 1 Radiator Fan Motor S 1 Steering Shaft Torque Sensor T 1 Theft Deterrent Horn T 2 Throttle Control Motor T 3 Throttle Position Sensor V 1 Vacuum Sensor (HC Adsorber and Catalyst System) V 2 VSV (EVAP) V 3 VSV (HC Adsorber and Catalyst System)
K 1 Knock Sensor M M M M
1 2 3 4
Mass Air Flow Meter Motor Generator No.1 Motor Generator No.2 Motor Generator No.2
W W W W
1 2 3 4
Washer Motor Water Pump Motor (A/C) Water Pump Motor (Inverter) Water Temp. SW
2002 PRIUS (EWD464U)
G ELECTRICAL WIRING ROUTING Position of Parts in Instrument Panel
A 7 A 8 A 9 A 10 A 11 A 12 A 13 A 14 A 15 A 16 A 17 A 18 A 19 A 20 A 21 A 22
A/C Amplifier A/C Amplifier A/C Amplifier A/C Room Temp. Sensor A/C Solar Sensor A/C Thermistor Accel Position Sensor Air Inlet Control Servo Motor Air Mix Control Servo Motor Air Vent Mode Control Servo Motor Airbag Sensor Assembly Airbag Sensor Assembly Airbag Sensor Assembly Airbag Squib (Front Passenger Airbag Assembly) Airbag Squib (Steering Wheel Pad) Ashtray Illumination
B 5 B 6 B 7 B 8 B 9 B 10 B 11 B 12 B 13 B 14
Back–Up Light Relay Blower Motor Blower Motor Linear Controller Body ECU Body ECU Brake ECU Brake ECU Brake ECU Brake ECU Brake Warning Buzzer
C 7 C 8 C10 C 11 C12 C13 C14
Center Cluster SW Cigarette Lighter Combination Meter Combination Meter Combination SW Combination SW Combination SW
D D D D
Data Link Connector 3 Daytime Running Light Relay Diode (Door Courtesy) Diode (Daytime Running Light)
2 3 4 5
E 3 E 4 E 5 E 6 E 7 E 8 E 9 E 10
EMPS ECU EMPS ECU EMPS ECU EMPS ECU Engine Control Module Engine Control Module Engine Control Module Engine Control Module
2002 PRIUS (EWD464U)
G Position of Parts in Instrument Panel
G 1 Gateway ECU H 7 H 8 H 9 H10 H 11 H12 H13 H14
Hazard Warning SW Hazard Warning SW Heated Oxygen Sensor (Bank 1 Sensor 2) Hybrid Vehicle Control ECU Hybrid Vehicle Control ECU Hybrid Vehicle Control ECU Hybrid Vehicle Control ECU Hybrid Vehicle Control ECU
I 15 Ignition SW J 1 J 2 J 3 J 4 J 5 J 6 J 7 J 8 J 9 J 10 J 11 J 12 J 13 J 14 J 15 J 16 J 17 J 18 J 19 J 20 J 21
Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector
J 22 J 23 J 24 J 25 J 26 J 27 J 28 J 29
Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector Junction Connector
L 1 Light Control Rheostat M 5 Multi Display M 6 Multi Display M 7 Multi Display P P P P
1 2 3 4
Park/Neutral Position SW Parking Brake SW PTC Heater PTC Heater
R R R R
2 3 4 5
Radio and Player Radio and Player Radio and Player Remote Control Mirror SW
S 2 Shift Lock ECU S 3 Stop Light SW T 4 Transponder Key Computer T 5 Turn Signal Flasher Relay U 1 Unlock Warning SW and Key Interlock Solenoid W 5 Wireless Door Control Receiver
2002 PRIUS (EWD464U)
G ELECTRICAL WIRING ROUTING Position of Parts in Body
A 23 ABS Speed Sensor Rear LH A 24 ABS Speed Sensor Rear RH
F 14 F 15 F 16 F 17 F 18
B 15 B 16 B 17 B 18 B 19 B 20 B 21
Battery Blower Motor Battery Blower Motor Controller Battery ECU Battery ECU Battery Fan Relay Buckle SW and Tension Reducer LH Buckle SW RH and Seat Belt Warning Occupant Detection Sensor B 22 Battery Input Relay D 6 D 7 D 8 D 9 D10 D 11
Front Door Speaker LH Front Door Speaker RH Fuel Pump and Fuel Sender Fusible Link Block No.2 Fusible Link Block No.2
H15 High Mounted Stop Light H16 Hybrid Vehicle Battery H17 Hybrid Vehicle Battery I 16 Interior Light I 17 Interlock SW
Door Courtesy SW Front LH Door Courtesy SW Front RH Door Courtesy SW Rear LH Door Courtesy SW Rear RH Door Lock Control SW Front RH Door Lock Motor and Door Unlock Detection SW Rear LH D12 Door Lock Motor and Door Unlock Detection SW Rear RH D13 Door Lock Motor, Door Key Lock and Unlock SW and Door Unlock Detection SW Front LH D14 Door Lock Motor, Door Key Lock and Unlock SW and Door Unlock Detection SW Front RH
J 30 J 31 J 32 J 33
Junction Connector Junction Connector Junction Connector Junction Connector
L L L L L
License Plate Light LH License Plate Light RH Luggage Compartment Door Unlock SW Luggage Compartment Light Luggage Compartment Light SW
2 3 4 5 6
2002 PRIUS (EWD464U)
G Position of Parts in Body
N 2 Navigation ECU N 3 Navigation ECU N 4 Noise Filter (Rear Window Defogger) P 5 P 6 P 7 P 8 P 9 P 10 P 11 P 12 P 13 P 14 P 15
Personal Light Power Window Control SW Front RH Power Window Control SW Rear LH Power Window Control SW Rear RH Power Window Master SW Power Window Motor Front LH Power Window Motor Front RH Power Window Motor Rear LH Power Window Motor Rear RH Pretensioner LH Pretensioner RH
R 6 R 7 R 8 R 9 R10 R 11
Rear Combination Light LH Rear Combination Light RH Rear Speaker LH Rear Speaker RH Remote Control Mirror LH Remote Control Mirror RH
S 4 S 5 S 6 S 7 S 8 S 9 S 10 S 11 S 12
Side Airbag Sensor LH Side Airbag Sensor RH Side Airbag Squib LH Side Airbag Squib RH System Main Relay System Main Relay System Main Relay System Main Relay System Main Relay
T 6 Tension Reducer Solenoid V 4 Vapor Pressure Sensor V 5 VSV (Canister Closed Valve) V 6 VSV (Parge Flow Switching Valve)
2002 PRIUS (EWD464U)
G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points
: Location of Splice Points
2002 PRIUS (EWD464U)
G Connector Joining Wire Harness and Wire Harness EA1
DARK GRAY
1
1
Code
Joining Wire Harness and Wire Harness (Connector Location)
EA1
Engine Wire and Engine No.4 Wire (Near the Radiator Fan)
2002 PRIUS (EWD464U)
G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness
: Location of Ground Points
2002 PRIUS (EWD464U)
G Connector Joining Wire Harness and Wire Harness
Code IA1 IA2
Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
IB1
Floor Wire and Cowl Wire (Cowl Side Panel LH)
IC1
Front Door LH Wire and Cowl Wire (Left Kick Panel)
ID1 ID2 IE1 IF1 IF2
Instrument Panel Wire and Cowl Wire (Left Kick Panel) Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel) Instrument Panel Wire and Floor Wire (Left Kick Panel)
IG1
Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IH1
Floor Wire and Engine Room Main Wire (Left Kick Panel)
2002 PRIUS (EWD464U)
G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness
: Location of Splice Points
2002 PRIUS (EWD464U)
G Connector Joining Wire Harness and Wire Harness
Code II1 IJ1 IJ2
Joining Wire Harness and Wire Harness (Connector Location) Instrument Panel Wire and A/C Sub Wire (Instrument Panel Brace LH) Floor No.3 No 3 Wire and Instrument Panel Wire (Under the Instrument Panel Center)
IK1
Engine Wire and Engine Room Main Wire (Right Kick Panel)
IL1
Instrument Panel Wire and Engine Room Main Wire (Right Kick Panel)
IM1
Engine Room Main Wire and Cowl Wire (Right Kick Panel)
IN1
Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
IO1
Engine Wire and Cowl Wire (Right Kick Panel)
IP1
Instrument Panel Wire and Cowl Wire (Right Kick Panel)
IQ1
Front Door RH Wire and Cowl Wire (Right Kick Panel)
2002 PRIUS (EWD464U)
G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points
: Location of Splice Points
2002 PRIUS (EWD464U)
G Connector Joining Wire Harness and Wire Harness BA1
BB1
GRAY
1 2 3 4 5 6 7 8 9 10
5 4 3 2 1 10 9 8 7 6
1 2 3 4 5 6 7 8 9 10
BC1
1 2 3 4 5 6 7 8
4
3
2
1
8
7
6
5
Code
Joining Wire Harness and Wire Harness (Connector Location)
BA1
Rear Door No.2 Wire and Floor Wire (Center Pillar LH)
BB1
Rear Door No.1 Wire and Cowl Wire (Center Pillar RH)
BC1
Cowl Wire and Fuel Tank Wire (Near the Fuel Tank)
2002 PRIUS (EWD464U)
5 4 3 2 1 10 9 8 7 6
POWER SOURCE W 50A HTR
TO CONVERTER
1
2
30A RDI 1
2
30A CDS FAN 3 1B
W
40A ABS NO. 1 1
3
W–R
W
W
W
2
50A EMPS 1 1 B
2
3
1 A
B–R
1 D
F12 C , F13 D
100A DC/DC
G
3
W–R
1 2G
2 2C
15A EFI
B
2
9 1J
10A HORN
FUSIBLE LINK BLOCK NO. 1
F10 A , F11 B
1
15A AM2
2 1B
50A HTR3
30A HTR2 1
2
3
G–W
10A TURN–HAZ
30A HTR1 1
1 C
15A DOME 2
3
B–R 15A THRO
B
B
10A ABS NO. 4 B–G
1
2
3
10A BATT FAN
L
30A ABS NO. 2 1
20A HV
1 1B
1 B
5A DC/DC–S
2
20A ABS NO. 3
SHORT PIN
2 A
1
2 HEAD RELAY
(*1) B–R
1 120A MAIN
SHORT PIN 2
4
1
F17 A , F18 B FUSIBLE LINK BLOCK NO. 2
1
(* 1)
30A HEAD 2
4
3
(*2) TO CONVERTER
W
3
10A HEAD LO (RH)
SHORT PIN 5
(*2)
10A HEAD LO (LH)
1 (* 2)
1
10A HEAD HI (LH)
3
BATTERY 4
10A HEAD HI (RH)
2 DIM RELAY 7. 5A DRL
11 1J
R
3
2002 PRIUS (EWD464U)
1
2
3
R–L
W–R
W
W
1 2H
1
* 1 : W/O DAYTIME RUNNING LIGHT * 2 : W/ DAYTIME RUNNING LIGHT
2
30A POWER
10A SRS ACC
30A DOOR
40A DEF W–G
3 2B
5A AM1
15A CIG
ACC RELAY I15 IGNITION SW ACC 3 P–L 2 AM1
8 2C
5
3
1
2
7 AM2
2
15A STOP
20A PWR1
IG1 4 B–Y ST1
W–R
10A ACC
1
IG2 6 B–W
IG1 RELAY
6 2D
5
3
1
2
10A HTR 7. 5A ECU–B
10A GAUGE 7. 5A OBDII
ST2 8 R–W 30A WIPER
5A ECU–IG
15A WASHER
TAIL RELAY 5
3
1
2
10A HEAD (RH)
10A HEAD (LH)
2002 PRIUS (EWD464U)
5A PANEL
7. 5A TAIL
POWER SOURCE SERVICE HINTS HEAD RELAY 2–1 : Closed with the light control SW at HEAD position or the dimmer SW at FLASH position Closed with the engine running and the parking brake pedal released (Parking brake SW off) [w/ Daytime running light] TAIL RELAY 5–3 : Closed with the light control SW at TAIL or HEAD position I15 IGNITION SW 2–3 : Closed with the ignition key at ACC or ON position 2–4 : Closed with the ignition key at ON or ST position 7–6 : Closed with the ignition key at ON or ST position 7–8 : Closed with the ignition key at ST position : PARTS LOCATION Code F10
See Page
Code
See Page
A
34
F13
D
34
F11
B
34
F17
A
38
F12
C
34
F18
B
38
Code I15
: RELAY BLOCKS Code 3
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B No.3 (Engine Compartment Right)
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1B 1J
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl ( Side Panel LH))
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2B 2C 2D 2G 2H
2002 PRIUS (EWD464U)
See Page 37
MEMO
2002 PRIUS (EWD464U)
TOYOTA HYBRID SYSTEM
H10 C , H11 A , H12 B , H13 E , H14 D HYBRID VEHICLE CONTROL ECU ST2
STP
CCS
1 D
16 D
GND1 31 D
GND2 24 D
IG2 6
B–W
ST2 8
R–W
B–W
9 1J
3 1J
C A
3
B–W
W–R
11 2G
C A
15A AM2
W–B
L
6 ID1 5
W–B
L
B B B–W
1 2G
J24 A , J25 B
5 2B
I15 IGNITION SW
JUNCTION CONNECTOR
2 2C
B–W
4
FROM STOP LIGHT SW
W–R
7 AM2
S3 STOP LIGHT SW
B–W
G–W
R–W
2 D
B–Y
ST1–
7 E
B–W
IGSW
6 E
1 B–W
IG2 RELAY
5 3
2
CCS CRUISE
2 1B
2 1A
3 1K W–B
B–W
RES/ACC
1
ECC 4
C14 CRUISE CONTROL SW [COMB. SW]
B–G
W–B
1 D
M
CANCEL
W–B
FUSIBLE LINK BLOCK NO. 1
2
W–B
F12 C , F13 D
W–B
1 C
SET/COAST
W3 WATER PUMP MOTOR (INVERTER)
B–W
B
14 IK1
A B
C B
C B
F18 FUSIBLE LINK BLOCK NO. 2
J18 A , J19 B JUNCTION CONNECTOR A A
A A
B A W–B
W–B
120A MAIN
1
W–B W–B
BATTERY J17 JUNCTION CONNECTOR
A A
IG
2002 PRIUS (EWD464U)
W–B
* 1 : SHIELDED
H10 C , H11 A , H12 B , H13 E , H14 D D
B
R
12 D
23 D
15 D
22 D
15 E
13 E
23 E
22 E
14 E
12 E
11 E
21 E
L
B
W
R
L–R
L–W
L–B
LG–R
R–B
W
B
R
VPA1
EP1
VCP2
VPA2
EP2
VSFT
SFT
GSFT
EOM 5 E
W–B
N
14 D
G
VCP1
J21 JUNCTION CONNECTOR
P
13 D
Y
HYBRID VEHICLE CONTROL ECU
E
E
W–B
(*1)
(*1)
W–B
I4
R
B
9
8
3
VSFT
SFT
GSFT
E 1
P1 PARK/NEUTRAL POSITION SW
E A E A
W–B
W–B
A13 ACCEL POSITION SENSOR
D B
W–B
4 B
W–B
7 D
J22 A , J23 B
6 N
JUNCTION CONNECTOR
R–B
5 P
W–B
LG–R
2
R
L–B
1 EP2
B
L–W
2 VPA2
W
L–R
4 VCP2
W
3 EP1
L
5 VPA1
G
6 VCP1
Y
R
I2
A B J24 A , J25 B JUNCTION CONNECTOR A A
A A
W–B
W–B
8 2D
W–B
W–B
8 2K
W–B
W–B
W–B
W–B
J11 JUNCTION CONNECTOR
A
ID
2002 PRIUS (EWD464U)
TOYOTA HYBRID SYSTEM
H10 C , H11 A , H12 B , H13 E , H14 D HYBRID VEHICLE CONTROL ECU MSN 13 C R
MSNG 20 C G
GMT 1 C B–R
GMTG 8 C G–W
GCSG 12 C BR
GCS 5 C Y
W
GRFG 17 C
B
GRF 10 C
(* 1)
R
GSN 4 C
G
GSNG 11 C
(* 1)
(* 1)
(*1)
W–B
I8
(*1)
G
R
B
W
Y
BR
G–W
B–R
G
R
W–B
I8
7 A
2 A
1 A
6 A
3 A
8 A
9 A
4 A
5 B
2 B
GSN
GRF
GRFG
GCS
GCSG
GMTG
GMT
MSNG
MSN
W–B
GSNG
3 1K
M2 A MOTOR GENERATOR NO. 1
M3 B , M4 C MOTOR GENERATOR NO. 2
W–B
W–B
W–B
1 1A
B A
B A
B A J8 A ,
J9 B
C B
C B
W–B
W–B
JUNCTION CONNECTOR
W–B W–B W–B W–B
W–B
W–B
W–B
2002 PRIUS (EWD464U)
* 1 : SHIELDED
H10 C , H11 A , H12 B , H13 E , H14 D HYBRID VEHICLE CONTROL ECU GO 10 B
G
6 D
O
SPDO
8 D
R–Y
ESTP
29 D
BR
HTE–
19 D
Y
HTE+
27 D
L
ETH–
28 D
P
ETH+
(* 1)
GR
MMT 2 C
R–W
MMTG 9 C
W
MRFG 18 C
B
MRF 19 C
(*1)
L
MCSG 21 C
P
MCS 14 C
9
IA2
(*1)
R–Y
O
G
SPHV
GO
MPX2
J18 A JUNCTION CONNECTOR
11 MPD2
B A W–B
MPD1
MPX+
GR MPX+
GR–B A7 A/C AMPLIFIER
GR–B 4
MPX–
15
4
MP2+
16 B8 BODY ECU
B A B A M3 B , M4 C MOTOR GENERATOR NO. 2
ESTP
13 D
G1 GATEWAY ECU
MMT
21 C
GR–L
1 C
MMTG
10 C
MPX1
(* 1)
GR
3 C
MRFG
MRF
16 C
HTE–
14 D
(* 1)
R–W
1 B
MCSG
18 C
HTE+
ENGINE CONTROL MODULE
W–B
W 4 B
B
P
L 6 B
19 C
E 9 C , E10 D
I8
MCS
ETH–
BR
27 C
Y
L
28 C ETH+
3 B
(*1)
P
(* 1)
(*1)
W–B
I8
GR
11
GR–B GR
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B A
J17 JUNCTION CONNECTOR
IG
2002 PRIUS (EWD464U)
TOYOTA HYBRID SYSTEM
H10 C , H11 A , H12 B , H13 E , H14 D HYBRID VEHICLE CONTROL ECU GIWA 28 A R
GIWB 18 A G
GIVB 8 A W
GIVA 19 A B
R
MIWA 25 A
Y
VB 20 A
G
MIWB 17 A
W
MIVB 7 A
(*1)
(* 1)
(* 1)
G
MIVA 16 A B
MIVG 26 A B
MVU 5 A W
MUU 4 A R
MWU 6 A G
MIT 11 A L
MSDN 13 A Y
MSIV 21 A
R
W
B
B
W
G
Y
R
B
W
G
R
4 D M–SDOWN
G
7 C M–SINV
L
Y
G
(*1)
5 D
3 D
1 D
2 D
6 D
1 C
3 C
4 C
5 C
2 C
1 B
3 B
4 B
2 B
M–INVT M–WU
M–UU
M–VU M–GINV M–IVA
M–IVB
M–IWB
I 9 D , I10 C , I11 A ,
I12 B ,
VB I13 E ,
M–IWA
G–IVA
G–IVB
G–IWB G–IWA
I14 F
INVERTER GND
(* 1)
(* 1) A
A
A
A
A
W–B
W–B
W–B
W–B
(* 1)
A
J7 JUNCTION CONNECTOR
GR–B
GR–B
GR
GR
W–B
(* 1)
A
W–B
A
W–B
6 B
W–B W–B W–B A
J1 JUNCTION CONNECTOR A
IE
W–B
EC
2002 PRIUS (EWD464U)
* 1 : SHIELDED * 2 : HIGH VOLTAGE (273. 6V)
H10 C , H11 A , H12 B , H13 E , H14 D HYBRID VEHICLE CONTROL ECU
5A DC/DC–S
100A DC/DC
1
F17 FUSIBLE LINK BLOCK NO. 2 W–G
12 IA1
IF1
2
1
I9
W–G 13
IA1
W–G
W–G
W–G
W
B–R
2
V–R
I17 INTERLOCK SW
+B2 5 D
W–G
L–O
FROM POWER SOURCE SYSTEM (SEE PAGE 50)
O
10
+B1 4 D W–G
O
NODD 4 B
B
ILK 4 E
F10 FUSIBLE LINK BLOCK NO. 1
GFIV 24 A
G
GSIV 15 A
B
MFIV 14 A
B
GIVG 27 A
R
GUU 1 A
W
GVU 2 A
G
GWU 3 A
L
G1T 23 A
Y
GSDN 12 A
(* 1)
I9 D ,
8 C
7 B
8 B
6 C
4 A
M–FINV
G–SINV
G–FINV
CVRSW
NODD
I10 C , I11 A , I12 B ,
I13 E ,
B–R
6 A
G–UU G–GINV
L–O
1 A
G–VU
2 IH1
V–R
B
2 A
B
R
3 A
G
W
5 A
G–INVT G–WU
B
G
4 A G–SDOWN
L
Y
4 IH1
3 A
1 B AMD
S
1 A IGCT
C4 A , C5 B
I14 F
CONVERTER
INVERTER
IDH 2 A Y
IGCT 5 B
(* 2)
O
1 E (* 2)
O
1 F
CBI
W–G
CEI
Y
14 IE1
O(* 2) O(* 2) GR–B
GR
GR
Y
GR–B
IDH
10
2002 PRIUS (EWD464U)
A7 A/C AMPLIFIER
TOYOTA HYBRID SYSTEM
H10 C , H11 A , H12 B , H13 E , H14 D HYBRID VEHICLE CONTROL ECU SPDI
25 D
B–L
V–W
FROM POWER SOURCE SYSTEM (SEE PAGE 50)
1B
26 D
R–W
GB
8 B
15A DOME
19 IE1 V–W
10A GAUGE
G A 7 1J V–W
J27 A , J28 B
L–Y
5 2A
W–G
G B
JUNCTION CONNECTOR
W–G
W–G
C10 A , C11 B COMBINATION METER
14 A
2 B
3 B
L
GR–B
GR
10 IB1
6
IB1
B–L
1 IH1
R–W
13 A
CHARGE
21 A
W–R
6 2A
CRUISE
4 2A
OUTPUT CONTROL
7 2B
L
22 A
2 2G
L
L
I9
O(* 2)
O(* 2)
O(* 2)
O(* 2)
GR–B GR
L
W–B
W–R
R–W
B–L
7 2A
2 A
17 A
16 A
6 2B
IH
W–B
W–B
BR
22 A GND
IGCT
B17 A , B18 B
BJ
BATTERY ECU
2002 PRIUS (EWD464U)
GB
IB01
* 1 : SHIELDED * 2 : HIGH VOLTAGE (273. 6V)
H10 C , H11 A , H12 B , H13 E , H14 D HYBRID VEHICLE CONTROL ECU CON1
CON2
CON3
GR
8 IH1
9 IH1
GR
1 E
P
V
2 B
V
13 B
(*1)
G
DTH– 18 E
R
11
IF1
P
DTH+ 19 E
B
HTD– 20 E
W
HTD+ 2 E
5 A
1 A
1 B
1 C
7 A
2 A
6 A
Y–R
4 A
Y–B
3 A
Y
IF2
O(*2)
5
O(*2)
IF2
W–B
3
SYSTEM MAIN RELAY
IF2
(* 1)
4
G
IF2
R
2
B
IF2
W
1
S 8 A , S 9 B , S10 C
W–G
S11 D , S12 E
W–G
1 D
1 E
O(* 2) O(* 2) B2
B B
B B
C A
J32 A , J33 B
C A
W–B
W–B
JUNCTION CONNECTOR
W–B
C A
W–B
W–B
W–B
W–B
O(* 2) O(* 2)
W
B
R
G
Y
Y–B
Y–R
W–B
6 A
7 A
18 A
19 A
4 B
10 B
3 B
HTB+
HTB–
BTH+
BTH–
B17 A , B18 B BATTERY ECU
2002 PRIUS (EWD464U)
IB
V–
V+
TOYOTA HYBRID SYSTEM
H10 C , H11 A , H12 B , H13 E , H14 D HYBRID VEHICLE CONTROL ECU BTH–
G
R
16
14
22
HVI+
2
HVI–
TC
SIL
10 E
10 D
21 D W–L
V
24
HAI
9 E
C
E J16 JUNCTION CONNECTOR
C
HVO+
HVO–
B11 BRAKE ECU 10 ID1
E W–L
LG
1
HAO
9 D
P–B
WFSE
17 D
P–B
BTH+ 18 D
Y–R
HTB– 30 D
G–R
C3 CIRCUIT BREAKER SENSOR G–R BR–B
20 D
Y
HTB+
AS1 15 B
P
AS1G 14 B
2 ID1
1 ID1 W–G W
P–B
W–G
W
E J26 JUNCTION CONNECTOR
W
Y
Y–R
P–B
15
12
8
13
WFSE
OP2
OP3
W
P
E D2 DATA LINK CONNECTOR 3
7
TC
SIL
O(* 2) O(* 2)
W–B
O H16 A , H17 B HYBRID VEHICLE BATTERY
1 A
(* 2)
W–B
O
W–B
(* 2)
W–B
1 B
SERVICE PLUG O
O
(* 2)
(*2)
L
L
B
B
W
6
L–B
18
W
5
R
17
G–W
L–W
4
L–R
Y–B
16
G
P
3
P–L
LG
15
Y
L–O
2
VBB1 VBB2 VBB3 VBB4 VBB5 VBB6 VBB7 VBB8 VBB9VBB10
LG–R
LG–B
14
SENSOR
L
O
BUSBER MODULE
GR
BUSBER MODULE
V–Y
HYBRID VEHICLE BATTERY
GR–B
HYBRID VEHICLE BATTERY
7
20
8
21
9
22
10
23
11
24
1
2
3
4
5
VBB11 VBB13 VBB15 VBB17 VBB19 VBB12 VBB14 VBB16 VBB18 GBB19
B17 A , B18 B BATTERY ECU
2002 PRIUS (EWD464U)
TB1 GB1 TB2 GB2 TB3
FROM POWER SOURCE SYSTEM (SEE PAGE 50)
* 2 : HIGH VOLTAGE (273. 6V)
H10 C , H11 A , H12 B , H13 E , H14 D HYBRID VEHICLE CONTROL ECU
7 D
20A HV
MREL
3 D
11 1F
IA1
7 IH1
L–R
G–Y
8 HEVC
T4 TRANSPONDER KEY COMPUTER
GSW2
A18 AIRBAG SENSOR ASSEMBLY
23
8 1J
G–Y
O
B–W
L
4
10A BATT FAN
7 B
G–Y
3 E
BATT
L–R
FCVC
ABFS
LG–R
5 2
G–Y
2
B15 BATTERY BLOWER MOTOR
IF1
W–B
2
5
L 1 M 2 L–B
W–B
3
L
L
IGCT RELAY 2
G–Y
G–Y
B A
2 3
W–B
3
J3 B
B A
J2 A ,
C B W
B B
JUNCTION CONNECTOR
1
A A
G–Y
A A JUNCTION CONNECTOR
J22 A , J23 B
W
2
1
W–B
W
B19 BATTERY FAN RELAY
W
L
W–G
L–B
W–G
H16 A , H17 B
3
5
4
B16 BATTERY MOTOR BLOWER CONTROLLER 2
6
1
GR
LG–R
L–R
L–B
1 A
5 A
10 A
9 A
3 A
8 B
9 B
2 B
W–B
Y–B
8 A
A
SIL
AM
CCTL
EQCO
EQTR
SW1
FCTL1
SI
VM B A
J32 A
A
B A
A
W–B
GB3 TB4 GB4 TB5 GB5
V–W
10
Y
9
G
G
R 8
G–Y
7
W 6
R
W
W–B
1
3
JUNCTION CONNECTOR J1 J7 JUNCTION JUNCTION CONNECTOR CONNECTOR W–B W–B
5 IH1 SENSOR
L–B
2
L
L
4
B22 BATTERY INPUT RELAY
W–B
W
G–Y
HYBRID VEHICLE BATTERY
B17 A , B18 B
BI
BATTERY ECU
2002 PRIUS (EWD464U)
IE
TOYOTA HYBRID SYSTEM SYSTEM OUTLINE FEATURES OF TOYOTA HYBRID SYSTEM This system controls the following modes in order to achieve the most efficient operations to match the driving conditions. (1) Supply of electrical power from the HV battery to motor generator no.2 provides force to drive the wheels. (2) While the tires are driven by the engine via the planetary gears, motor generator no.1 is driven via the planetary gears to supply electricity to motor generator no.2 to drive the wheels. (3) When the vehicle is decelerating, kinetic energy from the wheels is recovered and converted into electrical energy and used to recharge the HV battery by means of motor generator no.2. The hybrid vehicle control ECU switches between these modes (1, 2, 1+2, or 3) according to the driving conditions. However, when the state of charge of the HV battery is low, the HV battery is charged by the engine by turning motor generator no.1. CRUISE CONTROL OPERATION Cruise control is the speed control device, which sets the desired speed by just operating the switch on the control panel without pressing the accelerator pedal. This device is used when you would like to drive the vehicle at the fixed speed. 1. SET CONTROL If you operate the SET/COAST switch when driving (The available range of set speed: between about 40 and 200 km/h) with the main switch is ON (When power indicator comes on), the device memorizes vehicle’s speed when switch is off and controls the fixed speed. 2. SET SPEED CONTROL This device compares the vehicle’s running speed and the memorized speed, and controls the driving power of the motor and the engine by calculating the cruise control requirements so that both speed become equivalent. 3. COAST CONTROL If the SET/COAST switch is continued to be ON during the running with the cruise control, the device recognizes the cruise control requirement is at 0 and decelerates the vehicle’s speed. Then the device memorizes the speed when the switch is off in order to control the fixed speed. In each time you operate SET/COAST switch momentarily (For about 0.5 second), the memorized speed is decreased in about 1.5 km/h. However, in case of the tap–down operation with more than 5–km/h gap between the memorized speed and vehicle’s running speed, the device memorizes the vehicle’s speed when the switch is off and controls the fixed speed. 4. ACCEL CONTROL If the RESUME/ACCEL switch is continued to be ON during the running with the cruise control, the device recognizes the cruise control is on the acceleration side and accelerates the vehicle’s speed. Then the running speed when the switch is off is memorized to control the fixed speed. In each time you operate RESUME/ACCEL switch momentarily (For about 0.5 second), the memorized speed is increased in about 1.5 km/h. However, if there is more than 5–km/h gap between the memorized speed and vehicle’s running speed, this operation does not change the memorized speed. (Tap–up operation is not available.) 5. RESUME CONTROL If the running speed is faster than the low speed limit after the cruise control is canceled manually, the fixed speed is controlled by the OFF–ON operation of RESUME/ACCEL switch, so that the vehicle’s speed returns to the memorized speed at the time the cruise control is released.
2002 PRIUS (EWD464U)
6. MANUAL CANCEL CONTROL When each of the following signals is input during driving with cruise control, the cruise control is released with turning the cruise control requirement to 0. (The memorized speed is maintained when following signals except the signal, main switch OFF is input.) ∗ Stop light switch ON (Pressing the brake pedal) ∗ Control switch’s cancel switch ON ∗ Main switch OFF 7. AUTO CANCEL FUNCTION A) The memorized speed is erased and the control is canceled if the following conditions occur. The power indicator blinks at that time until the main switch is turned ON. The speed control is unavailable unless the main switch is turned ON again. ∗ When the stop light switch breaks or short–circuits. ∗ When sudden change of the running speed signal occur. B) The memorized speed is erased and the control is canceled if the following conditions occur. ∗ When the malfunction of the stop light switch input circuit occurs. ∗ When the running speed becomes slower than 40km/h. ∗ When the running speed becomes slower than the speed that 16 km/h subtracted from the memorized speed. 8. REGENERATIVE SYSTEM OPERATION This system operates the motor as a generator to change the kinetic energy of the vehicle into the electricity when accel pedal release or foot braking controls the vehicle, and store the electricity in the battery. SERVICE HINTS C14 CRUISE CONTROL SW [COMB. SW] 5–4 : Approx. 1540 Ω with CANCEL SW on Approx. 240 Ω with RES/ACC SW on Approx. 630 Ω with SET/COAST SW on : PARTS LOCATION Code
See Page
Code
A7
36
A13
36
H10
A18
36
H11
B8
36
B11
See Page
G1
Code
See Page
37
J18
A
37
C
37
J19
A
37
B
37
H12
B
37
J22
A
37
36
H13
E
37
J23
B
37
B15
38
H14
D
37
J24
A
37
B16
38
H16
A
38
J25
B
37
J21
37
B17
A
38
H17
B
38
J26
B18
B
38
I9
D
35
J27
A
37 37
B19
38
I10
C
35
J28
B
37
B22
38
I11
A
35
J32
A
38
C3
34
I12
B
35
J33
B
38
C4
A
34
I13
E
35
M2
A
35
C5
B
34
I14
F
35
M3
B
35
C10
A
36
I15
37
M4
C
35
C11
B
36
I17
38
36
D2
36
J2
A
37
S8
A
39
J3
B
37
S9
B
39
37
S10
C
39
C
36
E10
D
36
F10
37
37
C14 E9
J1
P1
J7
S3
37
34
J8
A
37
S11
D
39
J9
B
37
S12
E
39
F12
D
34
F13
C
34
J11
37
T4
37
F17
38
J16
37
W3
35
F18
38
J17
37
2002 PRIUS (EWD464U)
TOYOTA HYBRID SYSTEM : RELAY BLOCKS Code 2
See Page 23
Relay Blocks (Relay Block Location) Engine Room R/B No.2 (Right Side of Reserve Tank)
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1A
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Wire and Engine Room J/B (Engine Compartment Left)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2G
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2K
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
1B 1F 1J 1K 2A 2B 2C 2D
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code IA1 IA2
See Page
Joining Wire Harness and Wire Harness (Connector Location)
42
Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
IB1
42
Floor Wire and Cowl Wire (Cowl Side Panel LH)
ID1
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
IE1
42
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
42
Instrument Panel Wire and Floor Wire (Left Kick Panel)
IH1
42
Floor Wire and Engine Room Main Wire (Left Kick Panel)
IK1
44
Engine Wire and Engine Room Main Wire (Right Kick Panel)
IF1 IF2
: GROUND POINTS Code EC
See Page
Ground Points Location
40
Engine Compartment Left
42
Cowl Side Panel LH
IG
42
Cowl Side Panel RH
IH
42
Right Kick Panel
BI
46
Left Side of Rear Pillar
BJ
46
Right Side of Rear Pillar
ID IE
: SPLICE POINTS Code
See Page
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
E5
40
Engine Room Main Wire
I8
44
Engine Wire
I2
44
Instrument Panel Wire
I9
44
Engine Room Main Wire
I4
44
Cowl Wire
B2
46
Floor Wire
2002 PRIUS (EWD464U)
MEMO
2002 PRIUS (EWD464U)
ENGINE CONTROL B B–W
B–W
B–W 7 AM2
IG2 6
B–W W–B
ST2
B–W
W–R
FROM POWER SOURCE SYSTEM (SEE PAGE 50) I15 IGNITION SW
15A EFI
1 2G
11 2G
B–W
2
B–W
5 2B
W–R
2 2C
5 EFI RELAY
5
1
3
2
12 1F
1 1F
10 1A
13 1F
3 1A
B
B
1
2
3 1K
B
2 1B
CIR OPN RELAY
3
4 1A
R–W G–R
4 IA2
14
IA1
G–R
W–B
FUSIBLE LINK BLOCK NO. 1
F12 C , F13 D
3
IG2 RELAY
15A AM2
1 C
1
G–R
5
2 1A
B–R
3 1J
G–R
9 1J
IE
BL
J5 B
B IA1
W–B
W–B
B
B
A
IG
2002 PRIUS (EWD464U)
B
J17 JUNCTION CONNECTOR
W–B
A
8 BC1
B A B
7
19
B
A
M
J4 A ,
F16 FUEL PUMP
A
C A
3
JUNCTION CONNECTOR
C A
W–B
J1 JUNCTION CONNECTOR
BATTERY
B
W–B
A
J18 JUNCTION CONNECTOR
A
W–B
F18 FUSIBLE LINK BLOCK NO. 2
120A MAIN
1
J7 JUNCTION CONNECTOR
B–R
B–G
1 D
EA
B
I7
4 B 29 A
G–R
B
I7 B–R I7
12 A
IGT2
EVP1
22 B THA
1
2
B
I7 VG
4 3
1 B–R I7
10 B 19 B
B
B
* 1 : SHIELDED
2002 PRIUS (EWD464U) B–R
13 A
IGT3
Y
W–B 4 4
3 2
EVG
14 B
THW
G–R 2 2
BR I7
B–W E4
14 A
1
1
IGT4
I5 INJECTOR NO. 1
B–W
W–B
1 I4 IGNITION COIL AND IGNITER NO. 4
B–W
I3 IGNITION COIL AND IGNITER NO. 3
B–W 1
B–R
2
B–R
W–B I2 IGNITION COIL AND IGNITER NO. 2
B–W
E3
Y
3
G
2
W–B E4
O1 OIL PRESSURE SW
+B 4
B–W
Y–B
IGF 1
E4
E1 ENGINE COOLANT TEMP. SENSOR
25 A
E3
W
I7 3
B–R
2
(* 1)
IGT1
W–B
R
3 I1 IGNITION COIL AND IGNITER NO. 1
W–B
4
B–W
BR
BR
11 A E3
G
MREL 1
E4
(* 1)
9 D B–W
W
B–R
W–B
R–B
FC B–W
W–B
B
B–R
Y–G
E4
M1 MASS AIR FLOW METER
25 C
R–L
IGSW
V2 VSV (EVAP)
9 B
B
BATT JUNCTION CONNECTOR
B–W
B–W
B
B
3 B J24 A , J25 B
B B
G–R
B–W
C A
G–R
R–W
B B
B–W
B–W
W–B
2
5 B # 10
ENGINE CONTROL MODULE E 7 A , E 8 B , E 9 C , E10 D
12 B
MOPS
5 1
BR
B
B
(*1)
ENGINE CONTROL B
B B–W A B
B
B 1 BC1
R–W
L–W
B–R
B–R
1
B 2
1
2 A
# 30
#40
L
1 A
# 20
1
2
7 A
8 A
6 BC1
B–R
2 BC1
6 B
T2 THROTTLE CONTROL MOTOR
(*1)
2
L
2
5 BC1
V6 VSV (PARGE FLOW SWITCHING VALVE)
2
I8 INJECTOR NO. 4
2
1
I7 INJECTOR NO. 3
1
I6 INJECTOR NO. 2
1
N1 NOISE FILTER (IGNITION)
1
B
B–W
B–W
B–W
C A
L
A B
P
E4
V5 VSV (CANISTER CLOSED VALVE)
B–W
E4
J12 A , J13 B
B–W
E4
JUNCTION CONNECTOR
B–W
B
11 C
13 C
TBP
CCV
M–
M+
30 A GE01
E 7 A , E 8 B , E 9 C , E10 D ENGINE CONTROL MODULE HCLS
VC
PTNK
VTA
22 C
2 B
23 B
VTA2 21 B
BR
I7
2
1
PTNK
E2
V4 VAPOR PRESSURE SENSOR
BR
BR
I7
L
1
2
3
VC
VTA1
VTA2
E2 4 BR
BR VC
BR
3
P
Y–R
L–R
4 BC1
L–R
Y–R
J9 B
Y–R
7 BC1
BR
Y–R
B B
C A
J8 A ,
3
BR
1
VC
C A
7 IO1 3 BC1
JUNCTION CONNECTOR
E2
C A
15 IO1 Y–R
2 HCLS
V1 VACUUM SENSOR (HC ADSORBER AND CATALYST SYSTEM)
V–W
9 IO1
BR
T3 THROTTLE POSITION SENSOR
Y–R
Y–R
(* 1)
V–W
14 C
BR
I7
BR
B
B
B
B
(*1)
(*1) (*1)
2002 PRIUS (EWD464U)
FROM POWER SOURCE SYSTEM (SEE PAGE 50)
* 1 : SHIELDED
J14 A , J15 B
E A
G–W
D B
15A STOP
9 2K R–B
1 D STP
ESTP 8 D R–Y
ETH1 27 D L
P
BR
ETH+ 28 D
Y
O
HTE+ 19 D
1 G–W
W–G
G
23 A
24 A
21 C
OCV+
29 D
(* 1)
(* 1)
(*1)
Y–R
5 D SPD
HTE–
6 D
IA2
4 A FAN
SPDO
G 9
V–W
1
C2 CAMSHAFT TIMING OIL CONTROL VALVE
TO COMBINATION METER
2
GO 10 B
LG
FROM FAN NO. 1 AND FAN NO. 2 RELAY
W–G
2
S3 STOP LIGHT SW
H12 B , H14 D HYBRID VEHICLE CONTROL ECU
JUNCTION CONNECTOR
G–W
OCV–
(* 1)
10 C
18 C
SPHV
GO
HTE–
19 C
28 C
HTE+
ETH+
27 C
16 C
ETH–
ESTP
E 7 A , E 8 B , E 9 C , E10 D ENGINE CONTROL MODULE
IE1
22 IE1
BR
HT1B 7 D
I6
I6
(*1)
2
OX1B 11 D
BR
1 IE1
E11 16 D (* 1)
W
OX1A 12 D
P–L
HT1A 1 D
B–W
HCC 20 C
BR
E2 18 B
BR B
I7
1
3
HT1A
OX1A
E1 4
D A
4 E1
Y
G–Y
1 IK1 (* 1)
W
P–L
IK1
3
1
OX1B
HT1B
+B 2
+B 2
H9 HEATED OXYGEN SENSOR (BANK 1 SENSOR 2)
I7
6
B
BR
H3 HEATED OXYGEN SENSOR (BANK 1 SENSOR 1)
BR
1
7 IK1
E B
BR
E B
J22 A , J23 B
E B
2
JUNCTION CONNECTOR
BR
(* 1)
W
P–L
V3 VSV (HC ADSORBER AND CATALYST SYSTEM) B B–W
6 IO1
B
12 IE1
B
B
(* 1)
(* 1)
(* 1)
(* 1)
2002 PRIUS (EWD464U)
ENGINE CONTROL FROM POWER SOURCE SYSTEM (SEE PAGE 50)
15A THRO
P–B 8 1A
W–L
C
E
G–R GR–L
E
P–G
P–B
W–L
GR
C
G–R
5
GR–L
J16 JUNCTION CONNECTOR
ACT
4 LG
NE
P–B
A8 A/C AMPLIFIER
GR
W–G
TO AMBIENT TEMP. SENSOR
GR
W–L
(* 1)
(* 1)
(* 1)
(* 1)
23 C TAM
6 A
3 D
+BM
NEO
22 D
6 C
8 C
TC
ACT
6 D
SIL
14 D
W
13 D
MPX1
MPX2
E 7 A , E 8 B , E 9 C , E10 D ENGINE CONTROL MODULE E03
ME01
W–B
9 A
W–B
3 A W–B
BR
R
G
(* 1)
E02 31 A
R
B
(* 1)
I7
E01 21 A
W–B
E1 17 B (* 1)
W–B
NE+ 16 B
W–B
NE– 24 B
W–B
G2 10 A
W–B
KNK1 28 A
I7
1 (* 1) (* 1)
I7
BR
BR
BR
(* 1) BR
2
I7
A A
A A
A A
A A
G
(* 1)
C1 CAMSHAFT POSITION SENSOR G
1
C6 CRANKSHAFT POSITION SENSOR
G
B K1 KNOCK SENSOR
1
G
1 EA1
2
J8 A ,
J9 B
JUNCTION CONNECTOR
A B
A B
(* 1)
A A
BR
(* 1) (* 1)
EB
2002 PRIUS (EWD464U)
EA
FROM POWER SOURCE SYSTEM (SEE PAGE 50)
* 1 : SHIELDED
10A GAUGE
7. 5A OBDII
P–B 9 2D
5 2A
1 ID1
2 ID1
L
W–L
W–L
G–R
J26 JUNCTION CONNECTOR
P–B
W–L
G–R
D
11
7
13
16
4 B
MPD2
SIL
TC
A A 14 ID2
MPX+
8 2D
BR
3 B
2 B
14 A
L
MP2+
W–B
JUNCTION CONNECTOR
11 GR
A7 A/C AMPLIFIER
MALFUNCTION INDICATOR LAMP
GR–B
A A
J24 A 4
SG 5
GR
B
CG 4 W–B
D2 DATA LINK CONNECTOR 3
W–B
22 A
MPD1 4
J18 B JUNCTION CONNECTOR
COMBINATION METER
BAT
BR
G1 GATEWAY ECU
C10 A , C11 B
GR–B
8 2K W–B
7 2A
A
IG
J17 JUNCTION CONNECTOR
J11 JUNCTION CONNECTOR
14 IO1
A
ID
2002 PRIUS (EWD464U)
BR
W–B
W–B
BR
6 2B
BR
B
(* 1)
(* 1)
GR–B
15
E
W
MPX+ (* 1)
A A
D
GR–L
MPX– (* 1)
B8 BODY ECU
16
E
J26 JUNCTION CONNECTOR
P–B J22 A
A A
JUNCTION CONNECTOR
W
GR
W–L
GR–L
EB
IH
ENGINE CONTROL SYSTEM OUTLINE This system utilizes an engine control module and maintains overall control of the engine, transmission and so on. An outline of the engine control is explained here. 1. INPUT SIGNALS (1) Engine coolant temp. signal circuit The engine coolant temp. sensor detects the engine coolant temp. and has a built–in thermistor with a resistance which varies according to the engine coolant temp. thus the engine coolant temp. is input in the form of a control signal into TERMINAL THW of the engine control module. (2) Intake air temp. signal circuit The intake air temp. sensor is installed in the mass air flow meter and detects the intake air temp., which is input as a control signal into TERMINAL THA of the engine control module. (3) Oxygen sensor signal circuit The oxygen density in the exhaust gases is detected and input as a control signal into TERMINALS OX1A and OX1B of the engine control module. (4) RPM signal circuit Camshaft position and crankshaft position are detected by the camshaft position sensor and crankshaft position sensor. Camshaft position is input as a control signal to TERMINAL G2 of the engine control module, and engine RPM is input into TERMINAL NE+. (5) Throttle signal circuit The throttle position sensor detects the throttle valve opening angle, which is input as a control signal into TERMINALS VTA and VTA2 of the engine control module. (6) Vehicle speed signal circuit The vehicle speed signal from combination meter, detects the vehicle speed and inputs a control signal into TERMINAL SPD of the engine control module via the combination meter. (7) Battery signal circuit Voltage is constantly applied to TERMINAL BATT of the engine control module. When the ignition SW is turned on, the voltage for engine control module start–up power supply is applied to TERMINAL +B of the engine control module via EFI relay. (8) Engine knock signal circuit Engine knocking is detected by knock sensor and the signal is input into TERMINAL KNK1 of the engine control module as a control signal. 2. CONTROL SYSTEM ∗ SFI system The SFI system monitors the engine condition through the signals, which are input from each sensor to the engine control module. The best fuel injection volume is decided based on this data and the program memorized by the engine control module, and the control signal is output to TERMINALS #10, #20, #30 and #40 of the engine control module to operate the injector. (Inject the fuel). The SFI system produces control of fuel injection operation by the engine control module in response to the driving conditions. ∗ ESA system The ESA system monitors the engine condition through the signals, which are input to the engine control module from each sensor. The best ignition timing is detected according to this data and the memorized data in the engine control module, and the control signal is output to TERMINALS IGT1, IGT2, IGT3 and IGT4. This signal controls the ignition coil and igniter to provide the best ignition timing for the driving conditions. ∗ Fuel pump control system The engine control module operation outputs to TERMINAL FC and controls the CIR OPN relay. Thus controls the fuel pump drive speed in response to conditions. 3. DIAGNOSIS SYSTEM With the diagnosis system, when there is a malfunctioning in the engine control module signal system, the malfunction system is recorded in the memory. The malfunctioning system can then be found by reading the display (Code) of the malfunction indicator lamp. 4. FAIL–SAFE SYSTEM When a malfunction occurs in any system, if there is a possibility of engine trouble being caused by continued control based on the signals from that system, the fail–safe system either controls the system by using data (Standard values) recorded in the engine control module memory or else stops the engine.
2002 PRIUS (EWD464U)
SERVICE HINTS E7 (A), E8 (B), E9 (C), E10 (D) ENGINE CONTROL MODULE BATT–E1 : Always approx. 9–14 volts +B–E1 : 9–14 volts with the ignition SW on and the engine stopping VC–E2 : 4.5–5.5 volts with the ignition SW on and the engine stopping IGF–E1 : Pulse generation with the engine idling THA–E2 : 0.5–3.4 volts with the engine idling and the intake air temp. 20°C (68°F) THW–E2 : 0.2–1.0 volts with the engine idling and the engine coolant temp. 80°C (176°F) W–E1 : 9–14 volts with the engine idling : 0–3 volts with the ignition SW on and the engine coolant temp. sensor connector disconnects ESTP–E1 : 9–14 volts with the brake pedal depressed FC–E01 : 9–14 volts with the ignition SW on and the engine stopping : 0–3 volts with the engine idling +BM–E1 : Always approx. 9–14 volts MREL–E1 : 9–14 volts with the ignition SW on and the engine stopping EVP1–E1 : 9–14 volts with the ignition SW on and the engine stopping HT1A, HT1B : 9–14 volts with the ignition SW on and the engine stopping TC–E1 : 9–14 volts with the ignition SW on and the engine stopping KNK1–E2 : Pulse generation with the engine idling NE+, G2–NE– : Pulse generation with the engine idling OCV+ –OCV– : Pulse generation with the ignition SW on and the engine stopping IGT1, IGT2, IGT3, IGT4–E1 : Pulse generation with the engine idling #10, #20, #30, #40–E01 : Pulse generation with the engine idling E01, E02, E03, E1, E2, ME01–GROUND : Always continuity E1 ENGINE COOLANT TEMP. SENSOR 2–1 : Approx. 14.96 kΩ (–20 °C, –4 °F) Approx. 2.44 kΩ (20 °C, 68 °F) Approx. 0.31 kΩ (80 °C, 176 °F) Approx. 0.14 kΩ (110 °C, 230 °F) : PARTS LOCATION Code
See Page
Code H14
See Page D
Code
37
See Page
A7
36
J17
37
A8
36
I1
35
B8
36
I2
35
J22
A
37
C1
34
I3
35
J23
B
37
C2
34
I4
35
J24
A
37
C6
34
I5
35
J25
B
37
J18
37
C10
A
36
I6
35
J26
37
C11
B
36
I7
35
K1
35
D2
36
I8
35
M1
35
E1
34
I15
37
N1
35
J1
37
O1
35
E7
A
36
E8
B
36
J4
A
37
S3
37
E9
C
36
J5
B
37
T2
35
E10
D
36
37
T3
35
F12
C
34
J8
A
37
V1
35
F13
D
34
J9
B
37
V2
35
37
V3
35
H12
J7
F16
38
F18
38
J12
A
37
V4
39
G1
37
J13
B
37
V5
39
H3
34
J14
A
37
V6
39
H9
37
J15
B
37
B
37
J11
J16
37
2002 PRIUS (EWD464U)
ENGINE CONTROL
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1A
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Wire and Engine Room J/B (Engine Compartment Left)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2G
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2K
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
1B 1F 1J 1K 2A 2B 2C 2D
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code EA1
See Page
Joining Wire Harness and Wire Harness (Connector Location)
40
Engine Wire and Engine No.4 Wire (Near the Radiator Fan)
42
Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
IE1
42
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IK1
44
Engine Wire and Engine Room Main Wire (Right Kick Panel)
IO1
44
Engine Wire and Cowl Wire (Right Kick Panel)
BC1
46
Cowl Wire and Fuel Tank Wire (Near the Fuel Tank)
IA1 IA2 ID1 ID2
: GROUND POINTS Code EA
See Page
Ground Points Location
40
Engine Block
42
Cowl Side Panel LH
IG
42
Cowl Side Panel RH
IH
42
Right Kick Panel
BL
46
Near the Fuel Tank
EB ID IE
: SPLICE POINTS Code E3 E4
See Page 40
Wire Harness with Splice Points Engine Wire
Code
See Page
Wire Harness with Splice Points
I6
44
Instrument Panel Wire
I7
44
Engine Wire
2002 PRIUS (EWD464U)
MEMO
2002 PRIUS (EWD464U)
HYBRID VEHICLE IMMOBILISER SYSTEM FROM POWER SOURCE SYSTEM (SEE PAGE 50)
7 AM2
7. 5A ECU–B
IG2 6
B–W
W–R
ST2
5 2C
F A
C A 1 2G
D2 DATA LINK CONNECTOR 3
H14 HYBRID VEHICLE CONTROL ECU
OP1
R–G
W–R
B–W
H B
J27 A , J28 B
J24 A JUNCTION CONNECTOR
JUNCTION CONNECTOR
C A
2 2C
R–G
I15 IGNITION SW
FCVC
11
7
B–R
8 ID1
11 ID2
A
B–W
10 ID2
J20 JUNCTION CONNECTOR
15A AM2
B–W
R–G
9 1J
R–G
B–R
A
2 1B 2
3
1 +B
8 D
HEVC
L–B
W–B
R–W
12
A
J10 JUNCTION CONNECTOR
W–B
8 2K JUNCTION CONNECTOR
LG–B
D A
J12 A , J13 B
A F B
9 ID1
8 2D
J24 A , J25 B
JUNCTION CONNECTOR
W–B A B
W–B
W–B
L–B 2
A A
W–B
1
J27 A , J28 B
B A
U1 UNLOCK WARNING SW
IB1
JUNCTION CONNECTOR
L–B
R–W 3
D6 DOOR COURTESY SW FRONT LH
BR
D B
R–W
A A
JUNCTION CONNECTOR
E B
LG–B
7 B
R3 B , R4 C
8 C
RADIO AND PLAYER
BR
F18 FUSIBLE LINK BLOCK NO. 2
GND T4 TRANSPONDER KEY COMPUTER
W–B
C7 CENTER CLUSTER SW
4
BATTERY
7
8 ID2
B–G 120A MAIN
KSW
LG–B
6
1
CTY 6
J27 A , J28 B
1 D
IND 5 LG–B
F12 C , F13 D
1 C
FUSIBLE LINK BLOCK NO. 1
B
IG
A
A
1 IF
ID
2002 PRIUS (EWD464U)
J11 JUNCTION CONNECTOR
SERVICE HINTS T4 TRANSPONDER KEY COMPUTER 1–GROUND : Always approx. 12 volts 12–GROUND : Always continuity U1 UNLOCK WARNING SW 1–2 : Closed with the ignition key in cylinder : PARTS LOCATION Code
See Page
Code
See Page
Code
See Page
C7
36
I15
37
J25
B
37
D2
36
J10
37
J27
A
37
D6
38
J11
37
J28
B
37
A
37
R3
B
37
B
37
R4
C
37
F12 F13
C
34
J12
D
34
J13
F18
38
H14
37
J20 J24
A
37
T4
37
37
U1
37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1B
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2G
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2K
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
1J 2C 2D
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code IB1 ID1 ID2
See Page
Joining Wire Harness and Wire Harness (Connector Location)
42
Floor Wire and Cowl Wire (Cowl Side Panel LH)
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
: GROUND POINTS Code
See Page
Ground Points Location
ID
42
Cowl Side Panel LH
IF
42
Left Kick Panel
2002 PRIUS (EWD464U)
HEADLIGHT (w/ DAYTIME RUNNING LIGHT) FROM POWER SOURCE SYSTEM (SEE PAGE 50) 1
1
5
1
3
DRL RELAY
7. 5A DRL
30A HEAD
2
2
2
3 1
3
3
3
3
4 HEAD RELAY
R–L
R–W
W–B
R–G 2
3
4
DIM RELAY 1
3
2 8 1F
17 IA2
L
9 IA1
R–B
R–B
R–B
E2
3
3 H1 HEADLIGHT LH 1
2
1
W–B
2
R
H2 HEADLIGHT RH
R–W
G–R
L
R–G
R–W
R–G
R–Y
5 1E
6 IA2
G–R
2 1E
R–G
R–G
10A HEAD HI (RH)
7 1F
R–Y
10A HEAD HI (LH)
6 1F
R
10A HEAD LO (LH)
10A HEAD LO (RH)
3 1E
A J1 JUNCTION CONNECTOR IE
2002 PRIUS (EWD464U)
FROM POWER SOURCE SYSTEM (SEE PAGE 50)
7. 5A ECU–B
10A GAUGE
H B
R–G
16 IA2
8 ID1
JUNCTION CONNECTOR
J27 A , J28 B
R–G
F A
A R–W
7 1J
L–Y
R–G
R–W
10 2K
R–L
5 2C
15A DOME
C J20 JUNCTION CONNECTOR
R–G
A
C
R–G
R–L
R–G
3
12
L
E
CHG–
IND
9
2
5
7 2I
2 2G
10 2A
4 2A
R–G
E
R–G
J20 JUNCTION CONNECTOR
LIGHT CONTROL SW
LOW
R–Y E A
7
TAIL HEAD
14 L
FLASH
Y–B
13
16
7 2A
C13 COMBINATION SW W–B
R
RDY 9 A
W–B
H 17 B
21
HIGH
R–W
BODY ECU
HRLY
17
1
B8 A , B9 B 2 B
7 ID2
P2 PARKING BRAKE SW
R–W
3 ID2
DIMMER SW
8 OFF
E B
HIGH BEAM
E
Y–B
E
J12 A , J13 B
E
R–Y
R–G
JUNCTION CONNECTOR
L–O
R–G
R–B
C10 COMBINATION METER
11
L–Y
PKB
8
L
HI
7
HEAD
H
1
IG
6 2B
A J17 JUNCTION CONNECTOR
5 ID2 R IG
2002 PRIUS (EWD464U)
J11 JUNCTION CONNECTOR ID
BR
DRL
2
+B
R–G
H–LP
L
DIM
W–B
D5 DIODE (DAYTIME RUNNING LIGHT)
6
Y–B
1
D3 DAYTIME RUNNING LIGHT RELAY
4
IH
HEADLIGHT (w/ DAYTIME RUNNING LIGHT) SYSTEM OUTLINE When the ignition SW is turned on ST position and ”READY” signal from engine control module is sent to the daytime running light relay via body ECU. If the parking brake pedal is depressed (Parking brake SW is on) at that time, the daytime running light system does not operate. If the parking brake pedal is released (Parking brake SW is off), the daytime running light system operates and the low beam headlight comes on. SERVICE HINTS HEAD RELAY 1–2 : Closed with the light control SW at HEAD position or the dimmer SW at FLASH position Closed with the engine running and the parking brake lever is released (Parking brake SW off) D3 DAYTIME RUNNING LIGHT RELAY 12–GROUND : Approx. 12 volts with the ignition SW at ON position 3–GROUND : Always approx. 12 volts 11–GROUND : Continuity with the parking brake lever pulled up 2–GROUND : Always continuity 8–GROUND : Continuity with the dimmer SW at HIGH or FLASH position : PARTS LOCATION Code
See Page
Code
See Page
Code
See Page
B8
A
36
H1
34
J17
B9
B
36
H2
34
J20
C10
36
J1
37
J27
A
37
C13
36
J11
37
J28
B
37
D3
36
J12
A
37
D5
36
J13
B
37
P2
: RELAY BLOCKS Code 3
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B No.3 (Engine Compartment Right)
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code
See Page
Junction Block and Wire Harness (Connector Location)
1E 1F
27
Engine g Room Main Wire and Engine g Room J/B (Engine ( g Compartment Left))
30
Instrument Panel Wire and Instrument Panel J/B (Cowl ( Side Panel LH))
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
1J 2A 2B 2C 2G 2I 2K
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code IA1 IA2 ID1 ID2
See Page
Joining Wire Harness and Wire Harness (Connector Location)
42
Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
: GROUND POINTS Code ID
See Page
Ground Points Location
42
Cowl Side Panel LH
IG
42
Cowl Side Panel RH
IH
42
Right Kick Panel
IE
2002 PRIUS (EWD464U)
37 37
37
: SPLICE POINTS Code E2
See Page 40
Wire Harness with Splice Points
Code
Engine Room Main Wire
2002 PRIUS (EWD464U)
See Page
Wire Harness with Splice Points
HEADLIGHT (w/o DAYTIME RUNNING LIGHT)
4
1
1
SHORT PIN
HEAD RELAY 2
1 1B
8 1F
4
6 1F
R–G
H2 HEADLIGHT RH
J20 JUNCTION CONNECTOR
2
1
2
R–G
1
R–Y
R–W
JUNCTION CONNECTOR R–Y
R–W
J4 A ,
3 ID2
1 C
F A
E B J5 B
J5 B
F A
D B
E A
8 IA1
3 IA1
E A
J4 A ,
R–W
E
R–G
R–Y
E
2 B9 BODY ECU
FUSIBLE LINK BLOCK NO. 1
F12 C , F13 D
3
H1 HEADLIGHT LH
JUNCTION CONNECTOR
B
E
7 1F
3
IA2
R–W
6
10A HEAD (RH)
R–L
3
10A HEAD (LH)
R–W
1
SHORT PIN
R–G
2
HRLY
H 17
1 D L R–G
R
R–Y B–G
R–G
TAIL HEAD
D B R–G
R–G 17
JUNCTION CONNECTOR
R–Y 7
J12 A , J13 B
R–W 8
F A
LOW 7 2I
HIGH FLASH
C13 COMBINATION SW
10 2A
16
L
BATTERY
13 OFF
W–B
DIMMER SW
LIGHT CONTROL SW
120A MAIN
F18 FUSIBLE LINK BLOCK NO. 2
1
R
5 ID2
A J17 JUNCTION CONNECTOR IG
2002 PRIUS (EWD464U)
F A
FROM POWER SOURCE SYSTEM (SEE PAGE 50)
15A DOME
L–Y
7 1J
2 2G
4 2A
L
L
L
HEAD
HIGH BEAM
C10 COMBINATION METER
21
17
L
14
7 2A
BR
6 2B
IH
2002 PRIUS (EWD464U)
HEADLIGHT (w/o DAYTIME RUNNING LIGHT) SERVICE HINTS HEAD RELAY 1–2 : Closed with the light control SW at HEAD position or the dimmer SW at FLASH position C13 COMBINATION SW 13–16 : Continuity with the light control SW at HEAD position 8–16 : Continuity with the dimmer SW at FLASH position 7–16 : Continuity with the dimmer SW at HIGH or FLASH position : PARTS LOCATION Code
See Page
Code
See Page
Code
See Page
B9
36
F18
38
J12
C10
36
H1
34
J13
C13
36
H2
34
J17
37
J20
37
F12
C
34
J4
A
37
F13
D
34
J5
B
37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code
See Page
Junction Block and Wire Harness (Connector Location)
1B 1F
27
Engine g Room Main Wire and Engine g Room J/B (Engine ( g Compartment Left))
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2G
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2I
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
1J 2A 2B
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code IA1 IA2 ID2
See Page
Joining Wire Harness and Wire Harness (Connector Location)
42
Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
: GROUND POINTS Code
See Page
Ground Points Location
IG
42
Cowl Side Panel RH
IH
42
Right Kick Panel
2002 PRIUS (EWD464U)
A
37
B
37
MEMO
2002 PRIUS (EWD464U)
TAILLIGHT
1
5 7. 5A TAIL
TAIL RELAY
6 2K
7 2J
5 2F
G
LG
1 2H
3
2 ID2
10
5 2L
G
G
2
IA1 J4 A ,
J5 B G
W
LG
JUNCTION CONNECTOR D F A B
11 TRLY
T
D A
B9 BODY ECU
F B
G
G F6 FRONT SIDE MARKER LIGHT RH W–B
2
B–G
1
14 OFF
1
1
2
2
TAIL HEAD
E1
W–B
16 W–B
C13 LIGHT CONTROL SW [COMB. SW]
A J7 JUNCTION CONNECTOR W–B
A
BATTERY W–B
120A MAIN
F18 FUSIBLE LINK BLOCK NO. 2
F3 FRONT PARKING LIGHT LH W–B
LG–R
F5 FRONT SIDE MARKER LIGHT LH W–B
6 ID2
1 D
1
G
100A DC/DC
F11 B , F13 D
FUSIBLE LINK BLOCK NO. 1
1 B
F4 FRONT PARKING LIGHT RH W–B
LG–R
G
18
A
A J17 JUNCTION CONNECTOR
IG
J1 JUNCTION CONNECTOR IE
2002 PRIUS (EWD464U)
E1
W–B
E1
2
1
W–B
W–B
1
2
G
B A
BI 1 6
5
C B C B 1
2
JUNCTION CONNECTOR
J32 A , J33 B
W–B
BK
2002 PRIUS (EWD464U) G
A A
G
R7 TAILLIGHT RH [REAR COMB. LIGHT RH]
G
A A
L3 LICENSE PLATE LIGHT RH
A A
G
A A
G
R6 TAILLIGHT LH [REAR COMB. LIGHT LH]
G
JUNCTION CONNECTOR
W–B
W–B
W–B
A A
L2 LICENSE PLATE LIGHT LH
G
G
J32 A , J33 B
A B
A A
1 6
5
TAILLIGHT SERVICE HINTS TAIL RELAY 5–3 : Closed with the light control SW at TAIL or HEAD position : PARTS LOCATION Code
See Page
Code
36
C13
36
F3
34
F4
34
J4
A
F5
34
J5
B
F6
34 34
F11
B
F13
See Page
B9
D
Code
34
J32
F18
38
J33
J1
37
See Page A
38
B
38
L2
38
37
L3
38
37
R6
39
J7
37
R7
39
J17
37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 2F 2H 2J 2K 2L
See Page
Junction Block and Wire Harness (Connector Location)
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Floor Wire and Instrument Panel J/B (Cowl Side Panel LH)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
42
Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
ID2
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
: GROUND POINTS Code
See Page
Ground Points Location
IE
42
Cowl Side Panel LH
IG
42
Cowl Side Panel RH
BI
46
Left Side of Rear Pillar
BK
46
Back Panel Center
: SPLICE POINTS Code E1
See Page 40
Wire Harness with Splice Points
Code
Engine Room Main Wire
2002 PRIUS (EWD464U)
See Page
Wire Harness with Splice Points
MEMO
2002 PRIUS (EWD464U)
B–G
F11 B , F13 D
1 D LG–R
1 B 6 2K
11
TRLY
T B9 BODY ECU 2
18 1
A
J17 JUNCTION CONNECTOR
IG
2002 PRIUS (EWD464U) 8 M7 MULTI DISPLAY
LG
1 2H
LG
LG
LG
2
A22 ASHTRAY ILLUMINATION
LG–R
W
TAIL RELAY
BR
W–L
100A DC/DC
FUSIBLE LINK BLOCK NO. 1
1
BR
W–B
1
C13 LIGHT CONTROL SW [COMB. SW]
120A MAIN
F18 FUSIBLE LINK BLOCK NO. 2
ILLUMINATION
5
5A PANEL
3
1 2D LG
LG
LG
2 ID2
6
6 ID2
OFF 14
TAIL
HEAD 16
W–L
BATTERY
IF
E
B W–L E
W–L
D B
E A
2002 PRIUS (EWD464U) 3 ILL–
6 B
C
E
W–B
ID
7 B 14 A
LG–R
W–B
A
A
8 2D
7 2A
8 2K
6 2B
A
J11 JUNCTION CONNECTOR
IH
C10 A , C11 B COMBINATION METER
L
JUNCTION CONNECTOR
L
TC
L1 LIGHT CONTROL RHEOSTAT
LG
LG
LG
L–Y
LG
BR
C W–L
5
W–B
T
J24 JUNCTION CONNECTOR
C
W–B
C 6
W–B
J21 JUNCTION CONNECTOR 10 4
W–B
B 5
C7 CENTER CLUSTER SW
LG
F B
W–L
W–B
F B
J21 JUNCTION CONNECTOR
A H A
J22 A , J23 B
B A H A
JUNCTION CONNECTOR
W–B
W–L A J21 JUNCTION CONNECTOR
5 A R2 A , R3 B
10 B
RADIO AND PLAYER
LG
F B
W–L
W–L
2
W–L
5
H7 HAZARD WARNING SW
LG
H A
W–L
W–L
J21 JUNCTION CONNECTOR
W–L
FROM POWER SOURCE SYSTEM (SEE PAGE 50)
15A DOME
7 1J
LG
LG 2 2G
J27 A , J28 B 4 2A
F B
21 A
ILLUMINATION SERVICE HINTS TAIL RELAY 5–3 : Closed with the light control SW at TAIL or HEAD position C13 COMBINATION SW 14–16 : Closed with the light control SW at TAIL or HEAD position : PARTS LOCATION Code
See Page
A22
36
B9 C7
Code
See Page
Code
F18
38
J27
36
H7
37
J28
36
J11
37
See Page A
37
B
37
L1
37
C10
A
36
J17
37
C11
B
36
J21
37
R2
A
37
R3
B
37
C13
36
J22
A
37
J23
B
37
F11
B
34
F13
D
34
J24
M7
37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1J
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl ( Side Panel LH))
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
2A 2B 2D 2G 2H 2K
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code ID2
See Page 42
Joining Wire Harness and Wire Harness (Connector Location) Instrument Panel Wire and Cowl Wire (Left Kick Panel)
: GROUND POINTS Code
See Page
Ground Points Location
ID
42
Cowl Side Panel LH
IF
42
Left Kick Panel
IG
42
Cowl Side Panel RH
IH
42
Right Kick Panel
2002 PRIUS (EWD464U)
37
MEMO
2002 PRIUS (EWD464U)
TURN SIGNAL AND HAZARD WARNING LIGHT FROM POWER SOURCE SYSTEM (SEE PAGE 50)
10A GAUGE
6 1J
H7 HAZARD SW [HAZARD WARNING SW]
W–B
10A TURN–HAZ
W–B
10 2K
W
R–L
3
C
G–B
G–B
G–R
6 IA1
J20 JUNCTION CONNECTOR
4 C
8
3 C13 TURN SIGNAL SW [COMB. SW]
RH
4 2K
G–Y
G–Y
W–B
1 LH
LR
3 2F
2
J12 A , J13 B
7
JUNCTION CONNECTOR
6
G
E
5
L–B
ER
LL
B A
B A
G–B
T5 TURN SIGNAL FLASHER RELAY EL
3
HAZ
1
B B
2
W–B
W–B
G–Y
2
1
2
W–B
IG
F7 FRONT TURN SIGNAL LIGHT LH
1 B
F8 FRONT TURN SIGNAL LIGHT RH G–Y
R–L
4
12 2J G–R
W
4 ID1
A
J7 JUNCTION CONNECTOR
A
G–Y
A
A J4 JUNCTION CONNECTOR
A A A
W–B
A W–B
W–B
J18 JUNCTION CONNECTOR
11 IA1
G–Y A
A J17 JUNCTION CONNECTOR
IG
J1 JUNCTION CONNECTOR IE
2002 PRIUS (EWD464U)
W–B
C10 TURN SIGNAL INDICATOR LIGHT [COMB. METER]
D B J22 A , J23 B
W–B
E A
JUNCTION CONNECTOR
LH
RH
A J24 JUNCTION CONNECTOR
19
18
14
W–B
L
L
L
A
8 2D
2 2A
1 2A
7 2A
R7 REAR TURN SIGNAL LIGHT RH [REAR COMB. LIGHT RH]
R6 REAR TURN SIGNAL LIGHT LH [REAR COMB. LIGHT LH]
3
5
BR
6 2B
3
5
W–B
W–B
3 2M
G–Y
5 2M
G–B
8 2K
C B W–B
J32 A , J33 B JUNCTION CONNECTOR
BR
W–B
B A
A J11 JUNCTION CONNECTOR ID
BI
BK
2002 PRIUS (EWD464U)
IH
TURN SIGNAL AND HAZARD WARNING LIGHT SERVICE HINTS T5 TURN SIGNAL FLASHER RELAY 1–GROUND : Approx. 12 volts with the ignition SW at ON position 4–GROUND : Always approx. 12 volts 2, 3–GROUND : Changes from approx. 12 to 0 volts with the ignition SW at ON position and the turn signal SW at LEFT or RIGHT position or the hazard SW at ON position 5–GROUND : Continuity with the ignition SW at ON position and the turn signal SW at LEFT position 6–GROUND : Continuity with the ignition SW at ON position and the turn signal SW at RIGHT position 8–GROUND : Continuity with the hazard SW at ON position 7–GROUND : Always continuity : PARTS LOCATION Code
See Page
Code
See Page
J11
Code
37
See Page
C10
36
J24
37
C13
36
J12
A
37
J32
A
38
F7
34
J13
B
37
J33
B
38
F8
34
J17
37
R6
39
H7
37
J18
37
R7
39
J1
37
J20
37
T5
37
J4
37
J22
A
37
J7
37
J23
B
37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1J
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl ( Side Panel LH))
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Floor Wire and Instrument Panel J/B (Cowl Side Panel LH)
2A 2B 2D 2F 2J 2K 2M
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
42
Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
ID1
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
: GROUND POINTS Code ID
See Page
Ground Points Location
42
Cowl Side Panel LH
IG
42
Cowl Side Panel RH
IH
42
Right Kick Panel
BI
46
Left Side of Rear Pillar
BK
46
Back Panel Center
IE
2002 PRIUS (EWD464U)
MEMO
2002 PRIUS (EWD464U)
STOP LIGHT FROM POWER SOURCE SYSTEM (SEE PAGE 50)
15A STOP
R–B
9 2K
2 S3 STOP LIGHT SW
G–W
1
E J14 JUNCTION CONNECTOR
G–W
E
IB1
G–W
9
C A
C A J30 A , J31 B JUNCTION CONNECTOR
G–W R7 STOP LIGHT RH [REAR COMB. LIGHT RH]
2
1
2
W–B
5
B A
5
C B
W–B
C B
2
J32 A , J33 B JUNCTION CONNECTOR
W–B
R6 STOP LIGHT LH [REAR COMB. LIGHT LH]
H15 HIGH MOUNTED STOP LIGHT W–B G–W
A B
G–W
A B
W–B
BI
BK
2002 PRIUS (EWD464U)
SERVICE HINTS S3 STOP LIGHT SW 2–1 : Closed with the brake pedal depressed : PARTS LOCATION Code
See Page
H15 J14 J30
A
Code
See Page
2K
B
38
R6
39
37
J32
A
38
R7
39
38
J33
B
38
S3
37
See Page
31
Junction Block and Wire Harness (Connector Location) Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code IB1
See Page 42
Joining Wire Harness and Wire Harness (Connector Location) Floor Wire and Cowl Wire (Cowl Side Panel LH)
: GROUND POINTS Code
See Page
J31
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code
Code
38
See Page
Ground Points Location
BI
46
Left Side of Rear Pillar
BK
46
Back Panel Center
2002 PRIUS (EWD464U)
IH
MPX2
14 D
MPX1
ENGINE CONTROL MODULE
19 C
HTE+
MP2+
RL
HTE–
B
B
18 C
HTE–
A
E 9 C , E10 D
IG
2002 PRIUS (EWD464U) A
A
8 2D
8 2K
J17 JUNCTION CONNECTOR
ID
JUNCTION CONNECTOR
14 E
MPX+ JUNCTION CONNECTOR R–B
C10 A , C11 B
B A
4
5
A
J11 JUNCTION CONNECTOR
BI R–B
R–B
L 1 B IF1 N2 NAVIGATION ECU R–B
R–B
R–B
R–B
JUNCTION CONNECTOR
J27 A , J28 B
R–L
D A
R7 BACK–UP LIGHT RH [REAR COMB. LIGHT RH]
W–B
W–B
J30 A , J31 B
E
R6 BACK–UP LIGHT LH [REAR COMB. LIGHT LH]
29 D W–B
4 J22 JUNCTION CONNECTOR
1
J32 A , J33 B
4
J24 JUNCTION CONNECTOR
9
W–B
MPD2 W–B
MPD1 19 D
W–B
11 HTE+ W–B
W–G
R–L
3 2C
W–B
13 D 4
J18 JUNCTION CONNECTOR
MPX– R–B
COMBINATION METER
W–B
16
BR
MPX+ 3 B
P1 PARK/NEUTRAL POSITION SW
11
Y
15
H13 E , H14 D
2 B
HYBRID VEHICLE CONTROL ECU
GR
R–B
1
(SHIELDED)
7 2A GR–B
2
A7 A/C AMPLIFIER
5
G1 GATEWAY ECU
GR–B
14 A
GR
6 2B B8 BODY ECU
L
3
GR–L
BR
BACK–UP LIGHT FROM POWER SOURCE SYSTEM (SEE PAGE 50)
R–B
10A GAUGE D A
B B
B5 BACK–UP LIGHT RELAY 5 IJ1
14 REV
B A
B B
E
4
5
C B
B A
BK
SERVICE HINTS P1 PARK/NEUTRAL POSITION SW 4–1 : Closed with the shift lever at R position B5 BACK–UP LIGHT RELAY 3–5 : Closed with the shift lever at R position : PARTS LOCATION Code
See Page
A7
36
B5
36
B8
36
Code H14
See Page D
Code
See Page
37
J31
B
38
J11
37
J32
A
38
J17
37
J33
B
38
C10
A
36
J18
37
N2
39
C11
B
36
J22
37
P1
37
E9
C
36
J24
37
R6
39
E10
D
36
J27
A
37
R7
39
37
J28
B
37
37
J30
A
38
G1 H13
E
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code
See Page
Junction Block and Wire Harness (Connector Location)
2A 2B 2C
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
2D 2K
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IF1
42
Instrument Panel Wire and Floor Wire (Left Kick Panel)
IJ1
44
Floor No.3 Wire and Instrument Panel Wire (Under the Instrument Panel Center)
: GROUND POINTS Code
See Page
Ground Points Location
ID
42
Cowl Side Panel LH
IG
42
Cowl Side Panel RH
IH
42
Right Kick Panel
BI
46
Left Side of Rear Pillar
BK
46
Back Panel Center
2002 PRIUS (EWD464U)
LIGHT AUTO TURN OFF FROM POWER SOURCE SYSTEM (SEE PAGE 50)
W
(*1)
10A GAUGE
3
2
5
7. 5A TAIL 2
3
6 2K
5 2C
(* 1)
8 1F R–G
1 1B
1 TAIL RELAY
1
R–G
1
4
7. 5A ECU–B
LG
SHORT PIN
(* 1)
(*2)
HEAD RELAY
2 30A HEAD
1
1 2H
(*2)
2
R–W (*2)
(* 1)
D3 DAYTIME RUNNING J20 LIGHT RELAY JUNCTION CONNECTOR R–G R–G R–G
6 IA2
6
(* 2)
R–W
B
W
H–LP
H
7
B
F
B
9 2C
(*1)
9 B B
12 KSW
BODY ECU DCTY
5 ID2
6 ID2 LG–R
13
14
D A
OFF C13 LIGHT CONTROL SW [COMB. SW] 3
IB1
8 2D * 1 : W/ DAYTIME RUNNING LIGHT * 2 : W/O DAYTIME RUNNING LIGHT
R–W
HEAD
W–B
16
A A
8 2K W–B
TAIL
A B
R–W
R
F B
1
W–B
1 2K
1 B
J12 A , J13 B
3
E
JUNCTION CONNECTOR
18 B
R–W
17 B
LG–R
F18 FUSIBLE LINK BLOCK NO. 2
T
R
B–G
H
1
A
A J17 JUNCTION CONNECTOR
IG
D6 DOOR COURTESY SW FRONT LH
J11 JUNCTION CONNECTOR ID
2002 PRIUS (EWD464U)
J24 A , J25 B
IG
B9 B
1
BATTERY
15
TAIL
W–B
TRLY
JUNCTION CONNECTOR
17
11 B
HRLY
2
W–B
2 B
U1 UNLOCK WARNING SW
LG
R–W
3 ID2
1 D
120A MAIN
L–B
R–W (*2)
FUSIBLE LINK BLOCK NO. 1
1 C
100A DC/DC
1 B
F11 B , F12 C , F13 D
E
L–B
F
R–G
J27 JUNCTION CONNECTOR
L–B
(*1)
2 ID2
E
SYSTEM OUTLINE With the ignition SW turned on, the current flows to TERMINAL 15 of the body ECU through GAUGE fuse. Voltage is applied at all times to TERMINAL (A) 11 of the body ECU through the TAIL relay. Coil side, and to TERMINAL (A) 2 through the HEAD relay coil side (w/o daytime running light) or through the daytime running light relay (w/ daytime running light). 1. NORMAL LIGHTING OPERATION With the light control SW turned to TAIL position, a signal is input into TERMINAL (A) 18 of the body ECU. Due to this signal, the current flowing to TERMINAL (A) 11 of the body ECU flows to TERMINAL (A) 18 to TERMINAL 14 of the light control SW to TERMINAL 16 to GROUND, and taillight relay causes taillights to turn on. With the light control SW turned to HEAD position, a signal is input into TERMINALS (A) 17 and (A) 18 of the body ECU. Due to this signal, the current flowing to TERMINAL (A) 2 of the body ECU flows to TERMINAL (A) 17 to TERMINAL 13 of the light control SW to TERMINAL 16 to GROUND in the headlight circuit, and causes taillight and HEAD relay to turn the lights on. The taillight circuit is same as above. 2. LIGHT AUTO TURN OFF OPERATION With light on and ignition SW turned off (Input signal goes to TERMINAL 15 of the body ECU), when the driver’s door is opened (Input signal goes to TERMINAL 3 of the body ECU), the ECU operates and the current is cut off which flows from TERMINAL (A) 11 of the body ECU to TERMINAL (A) 18 in taillight circuit and from TERMINAL (A) 2 to TERMINAL (A) 17 in headlight circuit. As a result, all lights are turned off automatically. SERVICE HINTS HEAD RELAY 2–1 : Closed with the light control SW at HEAD position or the dimmer SW at FLASH position Closed with the engine running and the parking brake lever released (Parking brake SW off) [w/ daytime running light] TAIL RELAY 3–5 : Closed with the light control SW at TAIL or HEAD position D6 DOOR COURTESY SW LH 1–GROUND : Continuity with the front LH door open B9 (B) BODY ECU 15–GROUND : Approx. 12 volts with the ignition SW at ON position 3–GROUND : Continuity with the front LH door open (B) 9–GROUND : Always approx. 12 volts (B) 1–GROUND : Always continuity (B) 2–GROUND : Continuity with the light control SW at HEAD position (B)11–GROUND : Continuity with the light control SW at TAIL or HEAD position : PARTS LOCATION Code B9
See Page B
36
Code F13
See Page D
Code
34
See Page
J20
37
C13
36
F18
38
J24
A
37
D3
36
J11
37
J25
B
37
D6
38
J12 J13
F11
B
34
F12
C
34
J17
A
37
J27
37
B
37
U1
37
37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1B
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2H
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2K
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
1F 2C 2D
2002 PRIUS (EWD464U)
LIGHT AUTO TURN OFF : CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA2
42
Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
IB1
42
Floor Wire and Cowl Wire (Cowl Side Panel LH)
ID2
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
: GROUND POINTS Code
See Page
Ground Points Location
ID
42
Cowl Side Panel LH
IG
42
Cowl Side Panel RH
2002 PRIUS (EWD464U)
MEMO
2002 PRIUS (EWD464U)
INTERIOR LIGHT FROM POWER SOURCE SYSTEM (SEE PAGE 50)
L GR–B FROM POWER SOURCE SYSTEM (SEE PAGE 50)
GR–B
GR–B
15A DOME
7. 5A ECU–B
7 1J L–Y
4 MPD1
G1 GATEWAY ECU
MPD2
5 2C 2 2G
F 3 2N L–Y
GR–L
L
J27 JUNCTION CONNECTOR
4 2A
R–G
11
14 MPX1
E10 ENGINE CONTROL MODULE
L–Y
F MPX2 13
GR
J30 A , J31 B
GR–B
E A R–G 9 B
15 A
16 A
JUNCTION CONNECTOR
B8 A , B9 B
RCTY
DCTY
6
3
6 2L
3 2K
D A
R–W
13 ID2
D A
R–B
R–W
R–G
E B
D A
R–W
R–W
IF1
F B
IB1
R–W
R–W
3
J16 JUNCTION CONNECTOR
4
JUNCTION CONNECTOR
OFF ON
J12 A , J13 B
JUNCTION CONNECTOR
DOOR
I16 INTERIOR LIGHT
1
1
1 B
1 2K
R–L
R–B
2
E
PCTY 12 A
A
A
8 2D
8 2K
1
1
J11 JUNCTION CONNECTOR BI
W–B
1
D7 DOOR COURTESY SW FRONT RH
1
D6 DOOR COURTESY SW FRONT LH
L6 LUGGAGE COMPARTMENT LIGHT SW
D9 DOOR COURTESY SW REAR RH
1 B
D8 DOOR COURTESY SW REAR LH
B
W–B
J33 JUNCTION CONNECTOR
L–Y
L–Y
1 2N
R–W
J30 A , J31 B
W–B
2
LCTY 14 A
2
R–W
L5 LUGGAGE COMPARTMENT LIGHT
L–Y P5 PERSONAL LIGHT
1
LP 7
MPX–
W–B
MPX+
B
BODY ECU
R–W
D B
R–W
D B
R
E A
A
ID
2002 PRIUS (EWD464U)
L GR–B
GR–B
GR–B
4 MP2+
MPX+
A7 A/C AMPLIFIER
GR–B
L
3 B
2 B
21 A DOOR
GR
11
C10 A , C11 B
14 A
L
COMBINATION METER
7 2A
BR
6 2B
IH
2002 PRIUS (EWD464U)
INTERIOR LIGHT SERVICE HINTS B8 (A), B9 (B) BODY ECU 3–GROUND : Continuity with front LH door open 6–GROUND : Continuity with rear LH, RH door open (A)14–GROUND : Continuity with front RH door open (B) 9–GROUND : Always approx. 12 volts L6 LUGGAGE COMPARTMENT LIGHT SW 1–GROUND : Closed with the luggage compartment door open : PARTS LOCATION Code
See Page
A7
Code
See Page
36
D9
38
Code
See Page
J27
B8
A
36
E10
36
J30 J31
37 A
38
B
38
B9
B
36
G1
37
C10
A
36
I16
38
J33
38
C11
B
36
J11
37
L5
38
D6
38
J12
A
37
L6
38
D7
38
J13
B
37
P5
39
D8
38
J16
37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1J
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2G
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2K
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Floor Wire and Instrument Panel J/B (Cowl Side Panel LH)
2A 2B 2C 2D
2L 2N
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IB1
42
Floor Wire and Cowl Wire (Cowl Side Panel LH)
ID2
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
IF1
42
Instrument Panel Wire and Floor Wire (Left Kick Panel)
: GROUND POINTS Code
See Page
Ground Points Location
ID
42
Cowl Side Panel LH
IH
42
Right Kick Panel
BI
46
Left Side of Rear Pillar
2002 PRIUS (EWD464U)
MEMO
2002 PRIUS (EWD464U)
MULTIPLEX COMMUNICATION SYSTEM (COMMUNICATION BUS)
GR
16 MPX– B8 BODY ECU MPX+ 13
15
MPX2
GR–B
E10 ENGINE CONTROL MODULE MPX1 14
2 MPX+ GR–L
C11 COMBINATION METER MPX– 3
11 GR
MPD2 G1 GATEWAY ECU MPD1 11
4
MPX+ A7 A/C AMPLIFIER MP2+ 4
GR–B
2002 PRIUS (EWD464U)
MEMO
2002 PRIUS (EWD464U)
KEY REMINDER AND LIGHT REMINDER BUZZER FROM POWER SOURCE SYSTEM (SEE PAGE 50)
W
(* 1)
10A GAUGE
1
4
1
3
2
7. 5A ECU–B
5
7. 5A TAIL 2
5 2A
5 2C
3
L
6 2K
(* 1)
8 1F R–G
1 1B
1 TAIL RELAY
SHORT PIN
(* 1)
(* 2)
HEAD RELAY
2 30A HEAD
1
1 2H
(* 2)
2
R–W R–G
(* 2) IA2
(* 1)
D3 DAYTIME RUNNING J20 LIGHT RELAY JUNCTION CONNECTOR R–G R–G R–G
LG
6
6
J27 JUNCTION CONNECTOR
(* 2)
R–W
B
W
H–LP
H F
7
(*1)
2 ID2
E
F
(*1)
LG
R–G
R–W (* 2)
R–W
3 ID2
FUSIBLE LINK BLOCK NO. 1
1 C
100A DC/DC
1 B
F11 B , F12 C , F13 D
E
2 B
17
11 B
HRLY
15
TAIL
TRLY
9 B
IG
6 ID2 LG–R
13
14
D A R–W
R
F B
OFF C13 LIGHT CONTROL SW [COMB. SW]
TAIL
3 IB1 R–W
HEAD
W–B
16 BATTERY
J12 A , J13 B
5 ID2
B8 A , B9 B BODY ECU
JUNCTION CONNECTOR
3 1 2K R–W
T 18 B LG–R
F18 FUSIBLE LINK BLOCK NO. 2
120A MAIN
1
DCTY
H 17 B R
B–G
1 D
1
A J17 JUNCTION CONNECTOR IG
2002 PRIUS (EWD464U)
D6 DOOR COURTESY SW FRONT LH
B
FROM POWER SOURCE SYSTEM (SEE PAGE 50) * 1 : W/ DAYTIME RUNNING LIGHT * 2 : W/O DAYTIME RUNNING LIGHT 15A DOME
7 1J
L–Y
L
GR–B
4 2A
4
11
GR–L
MP2+
12 KSW
1 B
BODY ECU
GR–B
GR
L
L 21 A
1
W–B
A B
W–B
A A
BUZZER
C10 A , C11 B
14 A
COMBINATION METER
8 2D
7 2A
8 2K
6 2B
W–B
B8 A , B9 B
22 A
2
W–B
E
3 B
L
MPX+
2 B
A J11 JUNCTION CONNECTOR ID
2002 PRIUS (EWD464U)
BR
15 A
MPX–
U1 UNLOCK WARNING SW
GR–B
L–B GR 16 A
9 2C
J24 A , J25 B
B
13
JUNCTION CONNECTOR
B
L–B
MPX2
11 J27 JUNCTION CONNECTOR
MPX1
E10 ENGINE CONTROL MODULE
14
L–B
MPX+
A7 A/C AMPLIFIER
MPD2
G1 GATEWAY ECU
4 MPD1
GR–B
2 2G
IH
KEY REMINDER AND LIGHT REMINDER BUZZER SYSTEM OUTLINE The current always flows from GAUGE fuse to body ECU TERMINAL 15. 1. LIGHT REMINDER BUZZER SYSTEM If you open the door of the driver’s side when either headlight or taillight is on with ignition SW being off, the buzzer comes on. 2. KEY REMINDER BUZZER SYSTEM If you open the door of the driver’s side when the ignition key is inserted in ignition SW being off, the buzzer comes on. SERVICE HINTS B8 (A), B9 (B) BODY ECU (B) 9–GROUND : Always approx. 12 volts (B) 1–GROUND : Always continuity 12–GROUND : Continuity with the ignition key in cylinder D6 DOOR COURTESY SW FRONT LH 1–GROUND : Closed with the driver’s door open C10 (A) COMBINATION METER (A)22–GROUND : Approx. 12 volts with the ignition SW at ON position (A)21–GROUND : Always approx. 12 volts (A)14–GROUND : Always continuity : PARTS LOCATION Code
See Page
A7
Code
36
See Page
E10
36
Code J13
See Page B
37
B8
A
36
F11
B
34
J17
B9
B
36
F12
C
34
J20
C10
A
36
F13
D
34
J24
A
37
C11
B
36
F18
38
J25
B
37
C13
36
G1
37
J27
37
D3
36
J11
37
U1
37
D6
38
J12
A
37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code
See Page
Junction Block and Wire Harness (Connector Location)
1B 1F
27
Engine g Room Main Wire and Engine g Room J/B (Engine ( g Compartment Left))
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
1J 2A 2B 2C 2D 2G 2H 2K
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA2
42
Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
IB1
42
Floor Wire and Cowl Wire (Cowl Side Panel LH)
ID2
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
2002 PRIUS (EWD464U)
37 37
: GROUND POINTS Code
See Page
Ground Points Location
ID
42
Cowl Side Panel LH
IG
42
Cowl Side Panel RH
IH
42
Right Kick Panel
2002 PRIUS (EWD464U)
J11 JUNCTION CONNECTOR
A 3
8 2D 1
10
W–B
A A A
A
IJ1
11
A B
A A L
L
PKBL GR
GR–B
4 2A
MPX1
MPX2 4
C10 A , C11 B
1
IJ1
ID
2002 PRIUS (EWD464U) L
IJ1 IJ1 A7 A/C AMPLIFIER
G–O
G–O
GR–B
GR
GR–L
G1 GATEWAY ECU
E10 ENGINE CONTROL MODULE 13
SEAT BELT (FRONT PASSENGER’ S SEAT)
8 GR–B
5 B
SEAT BELT (DRIVER’ S SEAT)
3 B G–O
DBKL
D B
6 2B
E A
BR
9 J29 JUNCTION CONNECTOR G–O
B8 A , B9 B
B20 BUCKLE SW LH
MPX+
W–B
15 A
J22 A , J23 B
BODY ECU P–L
MPX–
B21 BUCKLE SW RH AND SEAT BELT WARNING OCCUPANT DETECTION SENSOR
P–L
16 A
JUNCTION CONNECTOR W–B
W–B
IG
JUNCTION CONNECTOR W–B
W–B
15
J24 A , J25 B
W–B
5 2A
2 14 A
COMBINATION METER
8 2K
7 2A
W–B
IH
L–Y
L
SEAT BELT WARNING FROM POWER SOURCE SYSTEM (SEE PAGE 50)
10A GAUGE 15A DOME
7 1J
GR–L
11 MPD2
MPD1
14 4 2 2G
MP2+
11
MPX+
2 B 3 B 22 A 21 A
SYSTEM OUTLINE When the driver has not fastened the seat belt while the ignition SW is ON, the driver seat belt warning light blinks, and a warning buzzer comes on. Also, in the front passenger seat, a sensor recognizes a passenger, and when the passenger has not fastened the seat belt, the front passenger seat belt warning light blinks. SERVICE HINTS B20 BUCKLE SW LH 1–2 : Closed with driver’s seat belt in use : PARTS LOCATION Code
See Page
A7
Code
See Page
Code
See Page
36
C10
A
36
J22
A
37
C11
B
B8
A
36
36
J23
B
37
B9
B
36
E10
36
J24
A
37
B20
38
G1
37
J25
B
37
B21
38
J11
37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1J
See Page
J29
Junction Block and Wire Harness (Connector Location)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl ( Side Panel LH))
2G
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2K
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
2A 2B 2D
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code IJ1
See Page 44
Joining Wire Harness and Wire Harness (Connector Location) Floor No.3 Wire and Instrument Panel Wire (Under the Instrument Panel Center)
: GROUND POINTS Code
See Page
Ground Points Location
ID
42
Cowl Side Panel LH
IH
42
Right Kick Panel
2002 PRIUS (EWD464U)
37
WIPER AND WASHER FROM POWER SOURCE SYSTEM (SEE PAGE 50)
6 2I
3 2G L
L
2 2N
30A WIPER
L
15A WASHER
WF WIPER SW
W1 WASHER MOTOR L
10 IH1
EW
2
WASHER SW OFF
M
HI
LO
INT
1
WF
E
11
L–Y
2 IA1
L–Y
2
INT1
W–B
INT2
B1
OFF
ON
L–W
+1
7
L–B
+2
8
L–R
+B
17
L
+S
16
A
15
IA1 L–W
17 IA1 L
W–B J18 JUNCTION CONNECTOR
IA1
L–B
16
C12 FRONT WIPER AND WASHER SW [COMB. SW]
L–R 3
5
2
1
+2
+1
+B
+S
A
W–B
M
E F9 FRONT WIPER MOTOR
4
W–B
W–B
+B
+2
+1
+S
A J17 JUNCTION CONNECTOR
A
IG
2002 PRIUS (EWD464U)
A
IE
J1 JUNCTION CONNECTOR
A
J7 JUNCTION CONNECTOR
SYSTEM OUTLINE When the ignition SW is turned ON, the current flows from WIPER fuse to wiper and washer SW TERMINAL 17 and front wiper motor TERMINAL 2 or the current flows from WASHER fuse to washer motor TERMINAL 2. 1. LO POSITION When the wiper and washer SW is at LO position, the current flows from wiper and washer SW TERMINAL 17 to TERMINAL 7 to front wiper motor TERMINAL 5 to TERMINAL 4 to GROUND, and the front wiper motor runs at low speed. 2. HI POSITION When the wiper and washer SW is at HI position, the current flows from wiper and washer SW TERMINAL 17 to TERMINAL 8 to front wiper motor TERMINAL 3 to TERMINAL 4 to GROUND, and the front wiper motor runs at high speed. 3. INT POSITION When the wiper and washer SW is at INT position, the wiper relay is activated and the current flows from wiper and washer SW TERMINAL 17 to TERMINAL 2 to GROUND. This current activates the intermittent circuit, and the current flows from wiper and washer SW TERMINAL 17 to TERMINAL 7 to front wiper motor TERMINAL 5 to TERMINAL 4 to GROUND, and operates the front wipers. 4. WASHER CONTINUOUS OPERATION When the wiper and washer SW is pulled to WASHER position (Washer SW ON position), the current from the WASHER fuse flows to washer motor TERMINAL 2 to TERMINAL 1 to wiper and washer SW TERMINAL 11 to TERMINAL 2 to GROUND, and operates the washer motor to emit a water spray. At the same time, the current flows from the WIP fuse to wiper and washer SW TERMINAL 17 to TERMINAL 7 to front wiper motor TERMINAL 5 to TERMINAL 4 to GROUND, and operates the front wiper motor. SERVICE HINTS C12 FRONT WIPER AND WASHER SW 2–GROUND : Always continuity 7–GROUND : Approx. 12 volts with the front wiper and washer SW at LO position Approx. 2 to 12 seconds intermittently with the front wiper and washer SW at INT position 8–GROUND : Approx. 12 volts with the front wiper and washer SW at HI position 16–GROUND : Approx. 12 volts with the ignition SW on unless the front wiper motor at STOP position 17–GROUND : Approx. 12 volts the ignition SW at ON or ST position F9 FRONT WIPER MOTOR 2–1 : Closed unless the wiper motor at STOP position : PARTS LOCATION Code
See Page
Code
See Page
C12
36
J7
37
F9
34
J17
37
J1
37
J18
37
Code
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code
See Page
Junction Block and Wire Harness (Connector Location)
2G
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2I
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
2N
31
Floor Wire and Instrument Panel J/B (Cowl Side Panel LH)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
42
Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
IH1
42
Floor Wire and Engine Room Main Wire (Left Kick Panel)
: GROUND POINTS Code
See Page
Ground Points Location
IE
42
Cowl Side Panel LH
IG
42
Cowl Side Panel RH
2002 PRIUS (EWD464U)
W1
See Page 35
CIGARETTE LIGHTER FROM POWER SOURCE SYSTEM (SEE PAGE 50)
15A CIG
GR
5 2D
2 C8 CIGARETTE LIGHTER
W–B
1
A J24 JUNCTION CONNECTOR
W–B
A
8 2D
W–B
8 2K
A J11 JUNCTION CONNECTOR ID
2002 PRIUS (EWD464U)
SERVICE HINTS C8 CIGARETTE LIGHTER 2–GROUND : Approx. 12 volts with the ignition SW at ACC or ON position 1–GROUND : Always continuity : PARTS LOCATION Code
See Page
C8
36
Code J11
See Page 37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code
See Page
Junction Block and Wire Harness (Connector Location)
2D
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2K
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
: GROUND POINTS Code ID
See Page 42
Ground Points Location Cowl Side Panel LH
2002 PRIUS (EWD464U)
Code J24
See Page 37
HORN FROM POWER SOURCE SYSTEM (SEE PAGE 50)
10A HORN
1
5 HORN RELAY
2 1J
9 1F
B–W
3
B–R
2
IA2
1 H4 HORN
B–R
8
D J20 JUNCTION CONNECTOR
B–R
D
6 C14 HORN SW [COMB. SW]
2002 PRIUS (EWD464U)
SERVICE HINTS HORN RELAY 5–3 : Closed with the horn SW on : PARTS LOCATION Code
See Page
C14
36
Code H4
See Page 34
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1F 1J
See Page
27
IA2
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
See Page 42
J20
Junction Block and Wire Harness (Connector Location)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
Code
Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
2002 PRIUS (EWD464U)
See Page 37
POWER WINDOW FROM POWER SOURCE SYSTEM (SEE PAGE 50) B8 A , B9 B 1
15A DOME
20A PWR1
10A GAUGE
BODY ECU
30A POWER
7. 5A ECU–B IG 2
B 9 B
15
DCTY
RX 6 A
3 1 2K
5 2C
2 2G
R–L
W–R
L–Y
POWER RELAY 2
J27 JUNCTION CONNECTOR F F
R–W
10 2K
Y
11 2J
R–G
7 1J
5 R–G
1
3
3 2I
L–W L–W
7 2K
L–Y
3 IC1
8 IC1
G
Y
2
1 IC1
7 IC1
J14 A , J15 B
2
F B
M
D4 DIODE (DOOR COURTESY) D A
1
D A R–W
3 R–W
R–W
A J16 JUNCTION CONNECTOR 3
A
IB1 R–W
P10 POWER WINDOW MOTOR FRONT LH
DCTY 16
R–W
LIMIT SW
1
P9 POWER WINDOW MASTER SW
J12 A , J13 B
O 5
4
E 9
R–Y
8
R–Y
20
W–B
11
MPX1
W–B
13
P–L
DU
12
GR
DDN
18
WLSW
JUNCTION CONNECTOR
R–L
2
IG
R–W
W–R
4 B
SGND
5 IG1
B–L
L–Y
1
LMT
2 IC1 Y
5
PULSE SENSOR
A A
L–W
CPUB
3
A A
JUNCTION CONNECTOR
C
1 IG1
PLS
C B
L–W
J20 JUNCTION CONNECTOR
C B
R–L
C B
C
B–L
B A
JUNCTION CONNECTOR
J24 A , J25 B
L–Y
4 2D
W–B
1
1 D7 DOOR COURTESY SW FRONT RH
2002 PRIUS (EWD464U)
D6 DOOR COURTESY SW FRONT LH
B8 A , B9 B BODY ECU
FLU
FLD
RRU
2 A
RRD
RLU
14
1
5
10
RLD
10 2J
5 2K
2 2L
1 2L
E 1 B
W–B
3 A
L–W L–W
L–O
G–R
8 2D
L–W
B–W
W
L–W
G–B
R–W
7 IB1
8 2K
7 IN1
5 IN1
5 BB1
3 BB1
4 BB1
5 BA1
3 BA1
4 BA1
R–W
G–B
L–W
W
B–W
L–W
L–O
G–R
W–B
3 IQ1
L–W
L–W
5
Y
D
P8 POWER WINDOW CONTROL SW REAR RH
2 1 BB1
M
E 3
5
P13 POWER WINDOW MOTOR REAR RH
D
P7 POWER WINDOW CONTROL SW REAR LH
1 1 BA1
SD
U
2
1
1 SU
2
G
3
1
P11 POWER WINDOW MOTOR FRONT RH
U
2
6 PCT
M
2
P12 POWER WINDOW MOTOR REAR LH
W–B
A
J17 JUNCTION CONNECTOR A
W–B
W–B
W–B
W–B
1 IQ1
M
E
4 SD
A
A
W–B
IG
BI
2002 PRIUS (EWD464U)
ID
J11 JUNCTION CONNECTOR
2
1 SU
W–B
D
P6 POWER WINDOW CONTROL SW FRONT RH
6 PCT
G
5
Y
U
3
W–B
E
4 SD
Y
1 SU
W–B
6 PCT
G
4
POWER WINDOW SYSTEM OUTLINE Communication between power window master SW and body ECU is controlled and body ECU recognizes the conditions of each SW to control the operation of windows. 1. MANUAL UP OR DOWN OPERATION (DRIVER’S WINDOW, PASSENGER’S WINDOW) During you are pushing power window master SW (Driver side) halfway down, the motor operates and the window on the driver’s side opens. During you are pulling power window master SW (Driver side) halfway up, the motor operates and the windows on the driver’s side closes. The window on the passenger’s side opens or closes by pushing down or pulling up power window master SW (Front passenger, rear passenger) or power window SW front RH, rear LH, RH. 2. AUTO UP OR DOWN OPERATION (DRIVER’S WINDOW) When the power window master SW (Driver side) is fully pushed down, the motor operates and the window on the driver’s side automatically opens. When the power window master SW (Driver side) is fully pulled up, the motor operates and the window on the driver’s side automatically closes. 3. STOPPING AUTOMATIC WINDOW OPERATION If you push the power window master SW (Driver side) halfway down during the window on the driver’s side is raising automatically, the motor’s operation stops. And if you pull the power window master SW (Driver side) halfway up during the window on the driver’s side is lowering automatically, the motor’s operation stops. 4. KEY OFF POWER WINDOW OPERATION After the Ignition SW is turned off, the windows can be operated for about 43 seconds. However, the window operation stops when either front doors opens. 5. JAM PROTECTION FUNCTION (DRIVER’S WINDOW) When any foreign object gets caught during power window UP operation, the motor rotates in the opposite direction to open the window. SERVICE HINTS P9 POWER WINDOW MASTER SW 1–GROUND : Always approx. 12 volts 4–GROUND : Approx. 12 volts with the ignition SW at ON position 9–GROUND : Always continuity B8 (A), B9 (B) BODY ECU 15–GROUND : Approx. 12 volts with the ignition SW at ON position (B)9–GROUND : Always approx. 12 volts : PARTS LOCATION Code B8 B9
See Page A
36
B
Code J15
See Page B
Code
See Page
37
P7
39
36
J16
37
P8
39
D4
36
J17
37
P9
39
D6
38
J20
37
P10
39
D7
38
J24
A
37
P11
39
J25
B
37
P12
39
P13
39
J12
A
37
J13
B
37
J27
37
J14
A
37
P6
39
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1J 2C 2D 2G
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Cowl Wire and Instrument Panel J/B ((Cowl Side Panel LH))
31
Floor Wire and Instrument Panel J/B (Cowl Side Panel LH)
2I 2J 2K 2L
2002 PRIUS (EWD464U)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IB1
42
Floor Wire and Cowl Wire (Cowl Side Panel LH)
IC1
42
Front Door LH Wire and Cowl Wire (Left Kick Panel)
IG1
42
Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IN1
44
Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
IQ1
44
Front Door RH Wire and Cowl Wire (Right Kick Panel)
BA1
46
Rear Door No.2 Wire and Floor Wire (Center Pillar LH)
BB1
46
Rear Door No.1 Wire and Cowl Wire (Center Pillar RH)
: GROUND POINTS Code
See Page
Ground Points Location
IG
42
Cowl Side Panel RH
BI
46
Left Side of Rear Pillar
2002 PRIUS (EWD464U)
REMOTE CONTROL MIRROR FROM POWER SOURCE SYSTEM (SEE PAGE 50)
10A ACC
GR–R
2 2D
C J27 JUNCTION CONNECTOR GR–R
C
R5 REMOTE CONTROL MIRROR SW
8
5
OPERATION SW
RIGHT/ DOWN
LEFT/ UP M+
E
2
HR
6
7
R–G
L
LG
SELECT SW
HL
3
W–B
VR
4
BR–R
MH
W
MV
VL
RIGHT
LEFT
UP
DOWN
B
A B J24 A , J25 B JUNCTION CONNECTOR A A A J26 JUNCTION CONNECTOR
A
W
R–G
BR–R
9 IN1
8 IN1
10 IN1
R–G
BR–R
8 2K
3
1
5
3
W–B
5
10 IG1
W
LG
1
BR–R
LG 8 IG1
BR–R
L 9 IG1
L
A
W–B
BR–R
8 2D
M
M
M
M A J11 JUNCTION CONNECTOR
R10 REMOTE CONTROL MIRROR LH
R11 REMOTE CONTROL MIRROR RH
2002 PRIUS (EWD464U)
ID
SERVICE HINTS R5 REMOTE CONTROL MIRROR SW 8–GROUND : Approx. 12 volts with the ignition SW at ACC or ON position 6–7 : Continuity with the operation SW at UP or LEFT position 8–6 : Continuity with the operation SW at DOWN or RIGHT position : PARTS LOCATION Code
See Page
J11
Code
See Page 37
R10
39
R11
39
A
37
J27
37
J25
B
37
R5
37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, See Page
Junction Block and Wire Harness (Connector Location)
2D
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2K
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IG1
42
Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IN1
44
Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
: GROUND POINTS Code ID
See Page 42
See Page
J26
J24
Code
Code
37
Ground Points Location Cowl Side Panel LH
2002 PRIUS (EWD464U)
SHIFT LOCK FROM POWER SOURCE SYSTEM (SEE PAGE 50)
15A STOP
10A ACC
2 2D
2 2I B–Y
GR–R
R–B
9 2K
5A ECU–IG
2 D A
S3 STOP LIGHT SW
C A
J27 A , J28 B
D A
G–W
B–Y
JUNCTION CONNECTOR
1
J14 A JUNCTION CONNECTOR
C B
E A 5 ID1 B–Y
JUNCTION CONNECTOR
G–W
D B
GR–R
J14 A , J15 B
B
1 ID2
B
D
D
G–W
GR–R
B–Y
J26 JUNCTION CONNECTOR
6
1
3
STP
ACC
J21 JUNCTION CONNECTOR
IG P1 P P2
R
3
B
2
Y
1
LOCK
FREE
SHIFT LOCK CONTROL SW SLS+
SLS– E
L–R
B
S2 SHIFT LOCK ECU
L
W–B
4
4
A B J24 A , J25 B
A A
A A
3
W–B
W–B
W–B
JUNCTION CONNECTOR
E
8 2D
U1 KEY INTERLOCK SOLENOID [UNLOCK WARNING SW]
J21 JUNCTION CONNECTOR
W–B
W–B
E 8 2K
D B
J11 JUNCTION CONNECTOR
E A ID
J22 A , J23 B JUNCTION CONNECTOR
A
W–B
2002 PRIUS (EWD464U)
2
SHIFT LOCK SOLENOID
KLS+
5
1
SYSTEM OUTLINE When the ignition SW is turned to ACC position the current from the ACC fuse flows to TERMINAL 1 of the shift lock ECU, in the ON position, the current from the ECU–IG fuse flows to TERMINAL 3 of the ECU. 1. SHIFT LOCK MECHANISM With the ignition SW on, when a signal that the brake pedal is depressed (Stop light SW on) and a signal that the shift lever is put in P position (Continuity between P1 and P of the shift lock control SW) is input to the ECU, the ECU operates and current flows from TERMINAL 3 of the ECU to TERMINAL SLS+ of the shift lock solenoid to solenoid to TERMINAL SLS– to TERMINAL 5 of the ECU to GROUND. This causes the shift lock solenoid to turn on (Plate stopper disengages) and the shift lever can shift into position other than the P. 2. KEY INTERLOCK MECHANISM With the ignition SW ON or ACC position, when the shift lever is put in P position (No continuity between P2 and P of shift lock control SW), the current flowing from TERMINAL 4 of the ECU to the key interlock solenoid is cut off. This causes the key interlock solenoid to turn off (Lock lever disengages from LOCK position) and the ignition key can be turned from ACC to LOCK position. SERVICE HINTS S2 SHIFT LOCK ECU 1–GROUND : Approx. 12 volts with the ignition SW at ACC or ON position 3–GROUND : Approx. 12 volts with the ignition SW at ON position 5–GROUND : Always continuity 6–GROUND : Approx. 12 volts with the brake pedal depressed S3 STOP LIGHT SW 2–1 : Closed with the brake pedal depressed : PARTS LOCATION Code
See Page
J11 J14 J15
See Page
J23
B
37
A
37
J24
A
37
B
37
J25
B
J21 J22
Code
37
37 A
J26
37
J27
A
Code J28
2D 2I 2K
See Page
37
37
S3
37
37
U1
37
37
Junction Block and Wire Harness (Connector Location)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code ID1 ID2
See Page 42
Joining Wire Harness and Wire Harness (Connector Location) Instrument Panel Wire and Cowl Wire (Left Kick Panel)
: GROUND POINTS Code ID
See Page 42
37
S2
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code
See Page B
Ground Points Location Cowl Side Panel LH
2002 PRIUS (EWD464U)
DOOR LOCK CONTROL FROM POWER SOURCE SYSTEM (SEE PAGE 50)
15A DOME
30A DOOR
10A GAUGE
5 2C
L–Y
7 1J
7. 5A ECU–B
B8 A , B9 B 8
IG
B
KSW
LUG
9 B
5 A
J27 JUNCTION CONNECTOR
J27 JUNCTION CONNECTOR IF1
B A J24 A , J25 B JUNCTION CONNECTOR
W–B
B
2
L–Y
2
R
U1 UNLOCK WARNING SW
L–B
1
1
A A
A A
W–B
W–B
J24 A , J25 B
JUNCTION CONNECTOR
A B
B
8 2D
8 2K W–B
1
D9 DOOR COURTESY SW REAR RH
W–B
B
W–B
J33 JUNCTION CONNECTOR
W–B
W–B
L4 LUGGAGE COMPARTMENT DOOR UNLOCK SW
B
L–B
C B
L–Y
3 2K
R–G
2
L–Y
6 2L
L–B
L–Y
F
F
1 IG1
6
L–B
R–G
9 2C 4 2D
RCTY
E 1 B
12
D8 DOOR COURTESY SW REAR LH
R–G
B
2 2G
BODY ECU
15
1
A J11 JUNCTION CONNECTOR BJ
W–B ID
2002 PRIUS (EWD464U)
B8 A , B9 B BODY ECU
PCTY
RX
1 2K
ACTD
6 A
10 B
Y
3
R–W
DCTY
12 A
G
5 IG1 Y
13 ID2
18
P9 POWER WINDOW MASTER SW
R–W
3 IB1
G
1
2
M
W–B
R–W
3
1 2 IG1
W–B
D6 DOOR COURTESY SW FRONT LH
D7 DOOR COURTESY SW FRONT RH
4
G
5
R 6
5 IC1
R
R–W
3
D4 DIODE (DOOR COURTESY)
1
7 IG1
LOCK
A
D A
UNLOCK
R–W
J16 JUNCTION CONNECTOR A R–W
2
R–W
D A
R–Y
J12 A , J13 B
1
LSWD 10
7 IC1
JUNCTION F B CONNECTOR
A
KL 6
R–Y
L–Y
R–W
L–Y
KUL 15
W
DCTY 16
5
G–Y
CPUB
L–B
R–W
MPX1
W–B
2002 PRIUS (EWD464U)
D13 DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SW AND DOOR UNLOCK DETECTION SW FRONT LH
DOOR LOCK CONTROL
B8 A , B9 B BODY ECU
L2 7 B
LSWP
ACT+
17 A
ACT–
9
16
4 2I
1 2J
LSR 18 A
8 2L
9 2L
W–L
UL2 16 B
G
B A
B A
JUNCTION CONNECTOR
A B
B B
A B
B B
R
G
W–L
W
G
L–B
C A
J22 A , J23 B
J14 A , J15 B C A
JUNCTION CONNECTOR W–L
G
R
G
W–L
12 ID2
B B
G
R
5 IQ1
6 IQ1
2 BB1
6 BB1
7 BB1
2 BA1
6 BA1
7 BA1
W
G
R
G
R
W–L
G
R
W–L
1
2
3
6
5
4
3
1
2
1
4
D12 DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SW REAR RH
2
D11 DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SW REAR LH
1 BB1
7 IQ1
3
W–B
W–B
W–B
W–B A B
M
W–B
W–B
M
W–B
UNLOCK
LOCK
D14 DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SW AND DOOR UNLOCK DETECTION SW FRONT RH
4
W–L
R
2 IN1
W–L
G 12 IN1 G
IF1
L–B
1
11 IN1
M
B A
A B J18 A , J19 B
1 BA1
W–B
JUNCTION CONNECTOR A A A J17 JUNCTION CONNECTOR
A
W–B
IG
2002 PRIUS (EWD464U)
BI
B8 A , B9 B BODY ECU
L1
UL1
R–B
1 IN1
6 IN1 R–B
6
5
LOCK
UNLOCK
G–B
15 B
G–B
14 B
D10 DOOR LOCK CONTROL SW FRONT RH
W–B
3
2 IQ1
W–B
2002 PRIUS (EWD464U)
DOOR LOCK CONTROL SYSTEM OUTLINE The current is always sent from DOOR fuse to TERMINAL B of body ECU. When ignition SW is turned on, the current is sent from GAUGE fuse to TERMINAL IG of the body ECU. 1. MANUAL LOCK OPERATION When the door lock control SW (Power window master SW) is turned to LOCK position, the lock signal from TERMINAL MPX1 of power window master SW is input to TERMINAL RX of body ECU to operate ECU. The current is sent from TERMINAL ACT+ of ECU to each motor and the motor locks the doors by the current sent from TERMINAL ACT– of ECU to GROUND. 2. MANUAL UNLOCK OPERATION When the door lock control SW (Power window master SW) is turned to UNLOCK position, the unlock signal from TERMINAL MPX1 of power window master SW is input to TERMINAL RX of body ECU to operate ECU. The current is sent from TERMINAL ACT– of ECU to each motor and the motor unlocks the doors by the current sent from TERMINAL ACT+ of ECU to GROUND. 3. DOOR KEY LOCK AND UNLOCK OPERATION ∗ Lock operation from the driver’s side door When the driver’s side door is locked using the ignition key, all the doors are locked. ∗ Unlock operation from the driver’s side door When the driver’s side door is unlocked once using the ignition key, only the driver’s side door is unlocked. If this operation is repeated within 3 seconds, all the other doors are unlocked. ∗ Lock operation from the front passenger’s side door When the front passenger’s side door is locked using the ignition key, all the doors are locked. ∗ Unlock operation from the front passenger’s side door When the front passenger’s side door is unlocked using the ignition key, all the doors are unlocked SERVICE HINTS B8 (A), B9 (B) BODY ECU 15–GROUND : Approx. 12 volts with the ignition SW at ON position 8–GROUND : Always approx. 12 volts (B) 1–GROUND : Always continuity D6, D7, D8, D9 DOOR COURTESY SW FRONT LH, RH, REAR LH, RH 1–GROUND : Closed with each of the door open U1 UNLOCK WARNING SW 1–2 : Closed with the ignition key in the cylinder : PARTS LOCATION Code
See Page
Code
See Page
Code
See Page
B8
A
36
D13
38
J19
B
37
B9
B
36
D14
38
J22
A
37
D4
36
J11
37
J23
B
37
D6
38
J12
A
37
J24
A
37
D7
38
J13
B
37
J25
B
37
D8
38
J14
A
37
J27
37
D9
38
J15
B
37
J33
38
D10
38
J16
37
L4
38
D11
38
J17
37
P9
39
D12
38
37
U1
37
J18
A
2002 PRIUS (EWD464U)
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1J 2C 2D 2G
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Cowl Wire and Instrument Panel J/B ((Cowl Side Panel LH))
31
Floor Wire and Instrument Panel J/B (Cowl Side Panel LH)
2I 2J 2K 2L
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IB1
42
Floor Wire and Cowl Wire (Cowl Side Panel LH)
IC1
42
Front Door LH Wire and Cowl Wire (Left Kick Panel)
ID2
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
IF1
42
Instrument Panel Wire and Floor Wire (Left Kick Panel)
IG1
42
Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IN1
44
Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
IQ1
44
Front Door RH Wire and Cowl Wire (Right Kick Panel)
BA1
46
Rear Door No.2 Wire and Floor Wire (Center Pillar LH)
BB1
46
Rear Door No.1 Wire and Cowl Wire (Center Pillar RH)
: GROUND POINTS Code
See Page
Ground Points Location
ID
42
Cowl Side Panel LH
IG
42
Cowl Side Panel RH
BI
46
Left Side of Rear Pillar
BJ
46
Right Side of Rear Pillar
2002 PRIUS (EWD464U)
WIRELESS DOOR LOCK CONTROL FROM POWER SOURCE SYSTEM (SEE PAGE 50)
15A DOME
7 1J
7. 5A ECU–B
30A DOOR
10A GAUGE
L–Y
5 2C
B8 A , B9 B 8
B 9 B
IG
PRG 7 A
RDA
KSW
8 A
E
L–B IF1
B
L–B
B
L–B E W5 WIRELESS DOOR CONTROL RECEIVER
L–Y
W–B
1
2
R
2 RDA
R–G
3 PRG
1
2
1
E B
W–B J33 JUNCTION CONNECTOR
J24 A , J25 B JUNCTION CONNECTOR
A B
A A
A A
A A
W–B
W–B
W–B
8 2K
1
D9 DOOR COURTESY SW REAR RH
8 2D
B
B
W–B
W–B
W–B
JUNCTION CONNECTOR
E B
W–B
J23 B
W–B
L–Y
D8 DOOR COURTESY SW REAR LH
+B
U1 UNLOCK WARNING SW
L–Y
5
1 IG1
3 2K
W–B
L–B
R–G
J24 A , J25 B
JUNCTION CONNECTOR
C B
6 2L
2
F B A
LUG 5 A
6
L
B–R
J27 JUNCTION CONNECTOR F
J27 JUNCTION CONNECTOR
L–Y
F
R–G
9 2C 4 2D
RCTY
1 B
12
L4 LUGGAGE COMPARTMENT DOOR UNLOCK SW
R–G
B
2 2G
BODY ECU
15
1
A J11 JUNCTION CONNECTOR
W–B
ID
2002 PRIUS (EWD464U)
BJ
B8 A , B9 B BODY ECU
PCTY
RX
DCTY
12 A
ACTD
6 A
10 B
Y
3
R–W
1 2K G
Y
5 IG1
13 ID2 18
P9 POWER WINDOW MASTER SW
KUL
16
R–W A
6
5
5 IC1
1
2
R–W
LOCK
A
3 IB1
M
W–B
R–W 1 2 IG1
W–B
D6 DOOR COURTESY SW FRONT LH
R–W
3
D7 DOOR COURTESY SW FRONT RH
4
G
R–W
3
7 IG1
G
1
UNLOCK
A
D A
R–W
R–W
D A
R
L–Y
R
2
D4 DIODE (DOOR COURTESY)
R–Y
J12 A , J13 B
J16 JUNCTION CONNECTOR
10
7 IC1
JUNCTION F B CONNECTOR
1
LSWD
6
R–Y
L–Y
KL
15
W
5
G–Y
DCTY
CPUB
L–B
R–W
MPX1
W–B
2002 PRIUS (EWD464U)
D13 DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SW AND DOOR UNLOCK DETECTION SW FRONT LH
WIRELESS DOOR LOCK CONTROL
B8 A , B9 B BODY ECU
L2
LSWP
7 B
ACT+
17 A
ACT–
9
16
4 2I
1 2J
LSR 18 A
8 2L
9 2L
W–L
UL2 16 B
G
B A
B A
JUNCTION CONNECTOR
A B
B B
A B
B B
R
G
W–L
W
G
L–B
C A
J22 A , J23 B
J14 A , J15 B C A
JUNCTION CONNECTOR W–L
G
R
G
W–L
12 ID2
B B
G
R
5 IQ1
6 IQ1
2 BB1
6 BB1
7 BB1
2 BA1
6 BA1
7 BA1
W
G
R
G
R
W–L
G
R
W–L
1
2
3
6
5
4
3
1
2
1
4
D12 DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SW REAR RH
2
D11 DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SW REAR LH
1 BB1
7 IQ1
3
W–B
W–B
W–B
W–B A B
M
W–B
W–B
D14 DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SW AND DOOR UNLOCK DETECTION SW FRONT RH
M
W–B
LOCK
UNLOCK 4
W–L
R
2 IN1
W–L
G 12 IN1 G
IF1
L–B
1
11 IN1
M
B A
A B J18 A , J19 B
1 BA1
W–B
JUNCTION CONNECTOR A A A J17 JUNCTION CONNECTOR
A
W–B
IG
2002 PRIUS (EWD464U)
BI
B8 A , B9 B BODY ECU
L1
UL1
R–B
1 IN1
6 IN1 R–B
6
5
LOCK
UNLOCK
G–B
15 B
G–B
14 B
D10 DOOR LOCK CONTROL SW FRONT RH
W–B
3
2 IQ1
W–B
2002 PRIUS (EWD464U)
WIRELESS DOOR LOCK CONTROL SYSTEM OUTLINE The current is always sent from DOOR fuse to TERMINAL B of body ECU. At the same time, the current is always sent from DOME fuse to TERMINAL CPUB of power window master SW, and from ECU–B fuse to wireless door lock receiver. When ignition SW is turned on, the current is sent from GAUGE fuse to TERMINAL IG of body ECU. 1. WIRELESS DOOR LOCK OR UNLOCK NORMAL OPERATION ∗ Lock operation When the LOCK SW of the transmitter is pushed, all the doors are locked. ∗ Unlock operation When the UNLOCK SW of the transmitter is pushed, all the doors are unlocked. 2. AUTOMATIC LOCK OPERATION After all the doors are unlocked by pushing the UNLOCK SW of the transmitter, unless each of the doors is opened or the ignition key is inserted, all the doors are locked again. 3. VISUAL CONFIRMATION OF LOCK OR UNLOCK FUNCTION When doors are locked by using the transmitter, the taillight and parking lights blink once. When doors are unlocked by using the transmitter, the taillights and parking lights blink twice. If UNLOCK SW of the transmitter is pushed while all the doors are locked, doors are unlocked and the room lights are turned on simultaneously. 4. WIRELESS CONTROL STOP FUNCTION If the following situations occur, wireless door lock function does not operate. ∗ When each of the doors opens. (Door courtesy SW is on) ∗ When ignition key is inserted to ignition SW. (Unlock warning SW is on) ∗ When ignition SW is on. 5. REPEAT FUNCTION If the doors are not locked after the lock signal is out put from transmitter by pushing LOCK SW, the lock signal is sent again to lock the doors. 6. PANIC MODE FUNCTION When the panic SW of the transmitter is pushed, the horn comes on, and the headlight and taillight flashes. SERVICE HINTS B8 (A), B9 (B) BODY ECU 15–GROUND : Approx. 12 volts with the ignition SW at ON position 8–GROUND : Always approx. 12 volts (B) 1–GROUND : Always continuity W5 WIRELESS DOOR LOCK CONTROL RECEIVER 5–GROUND : Always approx. 12 volts 1–GROUND : Always continuity U1 UNLOCK WARNING SW 2–1 : Closed with the ignition key in the cylinder : PARTS LOCATION Code B8 B9
See Page A
36
B
36
Code
See Page
D14 J11
Code
See Page
38
J23
B
37
37
J24
A
37
D4
36
J12
A
37
J25
B
37
D6
38
J13
B
37
J27
37
D7
38
J14
A
37
J33
38
D8
38
J15
B
37
L4
38
D9
38
J16
37
P9
39
D10
38
J17
37
U1
37
D11
38
J18
A
37
W5
37
D12
38
J19
B
37
D13
38
J22
A
37
2002 PRIUS (EWD464U)
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1J 2C 2D 2G
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Cowl Wire and Instrument Panel J/B ((Cowl Side Panel LH))
31
Floor Wire and Instrument Panel J/B (Cowl Side Panel LH)
2I 2J 2K 2L
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IB1
42
Floor Wire and Cowl Wire (Cowl Side Panel LH)
IC1
42
Front Door LH Wire and Cowl Wire (Left Kick Panel)
ID2
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
IF1
42
Instrument Panel Wire and Floor Wire (Left Kick Panel)
IG1
42
Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IN1
44
Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
IQ1
44
Front Door RH Wire and Cowl Wire (Right Kick Panel)
BA1
46
Rear Door No.2 Wire and Floor Wire (Center Pillar LH)
BB1
46
Rear Door No.1 Wire and Cowl Wire (Center Pillar RH)
: GROUND POINTS Code
See Page
Ground Points Location
ID
42
Cowl Side Panel LH
IG
42
Cowl Side Panel RH
BI
46
Left Side of Rear Pillar
BJ
46
Right Side of Rear Pillar
2002 PRIUS (EWD464U)
THEFT DETERRENT FROM POWER SOURCE SYSTEM (SEE PAGE 50)
15A DOME
7. 5A ECU–B
10A GAUGE
5 2C
L–Y
7 1J
30A DOOR
B8 A , B9 B 8
2 2G
R–G
B
4 2D
BODY ECU
15 IG
KSW
LUG
B
5 A
6
6 2L
3 2K
L–B
W–B
L–B
R–G J27 JUNCTION CONNECTOR
J27 JUNCTION CONNECTOR
F 2
IF1
B
L–B
L–B
1 IG1
B
A A
A A
W–B
W–B
J24 A , J25 B
A B JUNCTION CONNECTOR
W–B
R
1
1
B
R–G
2
W–B
2
8 2D
8 2K W–B
1
D9 DOOR COURTESY SW REAR RH
W–B
B
W–B
J33 JUNCTION CONNECTOR
U1 UNLOCK WARNING SW
L–Y
L4 LUGGAGE COMPARTMENT DOOR KEY UNLOCK SW
L–Y
D8 DOOR COURTESY SW REAR LH
J24 A , J25 B
F
L–Y
C B
9 2C
JUNCTION CONNECTOR
B A
RCTY
E 1 B
12
L–Y
9 B
1
A J11 JUNCTION CONNECTOR BJ
W–B ID
2002 PRIUS (EWD464U)
FROM POWER SOURCE SYSTEM (SEE PAGE 50)
7. 5A OBDII
W–L
J26 JUNCTION CONNECTOR D D
9 2D W–L
B8 A , B9 B BODY ECU
11 A BDR
PCTY
RX
1 2K
ACTD
6 A
10 B
Y
3
R–W
DCTY
12 A
G
5 IG1 Y
13 ID2
18
P9 POWER WINDOW MASTER SW
KUL
KL 6
10
R–Y R–W
L–Y
R–W
3 IB1
G
1
2
M
W–B
R–W
3
1 2 IG1
W–B
D6 DOOR COURTESY SW FRONT LH
1
4
G
5
R 6
5 IC1
R
R–W
3
7 IG1
LOCK
A
1
UNLOCK
J16 JUNCTION CONNECTOR A R–W
R–W
A
D A
R–W
D A
2
D4 DIODE (DOOR COURTESY)
J12 A , J13 B
R–Y
7 IC1
JUNCTION F B CONNECTOR
D7 DOOR COURTESY SW FRONT RH
LSWD
15
W
DCTY 16
5
G–Y
CPUB
L–B
R–W
MPX1
W–B
2002 PRIUS (EWD464U)
D13 DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SW AND DOOR UNLOCK DETECTION SW FRONT LH
THEFT DETERRENT
B8 A , B9 B BODY ECU
L2 7 B
LSWP
ACT+
17 A
ACT–
9
16
4 2I
1 2J
LSR 18 A
8 2L
9 2L
W–L
UL2 16 B
G
B A
B A
JUNCTION CONNECTOR
A B
B B
A B
B B
R
G
W–L
W
G
L–B
C A
J22 A , J23 B
J14 A , J15 B C A
JUNCTION CONNECTOR W–L
G
R
G
W–L
12 ID2
B B
G
R
5 IQ1
6 IQ1
2 BB1
6 BB1
7 BB1
2 BA1
6 BA1
7 BA1
W
G
R
G
R
W–L
G
R
W–L
1
2
3
6
5
4
3
1
2
1
4
D12 DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SW REAR RH
2
D11 DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SW REAR LH
1 BB1
7 IQ1
3
W–B
W–B
W–B
W–B A B
M
W–B
W–B
M
W–B
UNLOCK
LOCK
D14 DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SW AND DOOR UNLOCK DETECTION SW FRONT RH
4
W–L
R
2 IN1
W–L
G 12 IN1 G
IF1
L–B
1
11 IN1
M
B A
A B J18 A , J19 B
1 BA1
W–B
JUNCTION CONNECTOR A A A J17 JUNCTION CONNECTOR
A
W–B
IG
2002 PRIUS (EWD464U)
BI
FROM POWER SOURCE SYSTEM (SEE PAGE 50)
10A HORN
B8 A , B9 B
1
5
BODY ECU HORN RELAY L1
UL1
14 B
SH
HCTY
20 A
15 B
IND
13 A
HR
13 B
2
3
10 A
A
2 IQ1 A
J7 JUNCTION CONNECTOR
W–B
3
W–B
8 C R3 B , R4 C RADIO AND PLAYER
A
IE
J1 JUNCTION CONNECTOR
BR
W–B
7 B
IF
2002 PRIUS (EWD464U)
D
D
J20 JUNCTION CONNECTOR
R–W
BR
D10 DOOR LOCK CONTROL SW FRONT RH
6
4
W–B
LOCK
UNLOCK
2
C7 CENTER CLUSTER SW
5
1
E2 ENGINE HOOD COURTESY SW
R–B
6
1
T1 THEFT DETERRENT HORN
6 IN1
G–B
B–W 1 IN1
8 IA2
LG–B
A
4 ID2
B–R
IE1
B–R
10
R–B
G–B
IE1
B–R
A 9
J27 JUNCTION CONNECTOR
B–R
B–R
B–W
R–W
LG–B
2 1J
THEFT DETERRENT SERVICE HINTS D13 DOOR KEY LOCK AND UNLOCK SW AND DOOR UNLOCK DETECTION SW FRONT LH 6–3 : Closed with door lock cylinder unlocked with key 5–3 : Closed with door lock cylinder locked with key D14 DOOR KEY LOCK AND UNLOCK SW AND DOOR UNLOCK DETECTION SW FRONT RH 1–4 : Closed with door lock cylinder unlocked with key 2–4 : Closed with door lock cylinder locked with key E2 ENGINE HOOD COURTESY SW 2–1 : Open with engine hood open U1 UNLOCK WARNING SW 2–1 : Closed with ignition key in cylinder L4 LUGGAGE COMPARTMENT DOOR KEY UNLOCK SW 2–1 : Closed with luggage compartment door lock cylinder unlock B8 (A), B9 (B) BODY ECU (A)17–GROUND : Continuity with front RH door unlocked (B) 1–GROUND : Always continuity (A) 5–GROUND : Continuity with luggage compartment door unlocked (A)13–GROUND : Continuity with engine hood closed (A) 5–GROUND : Continuity with luggage compartment door open (A)12–GROUND : Continuity with front RH door open (B) 9–GROUND : Always approx. 12 volts 8–GROUND : Always approx. 12 volts 15–GROUND : Approx. 12 volts with the ignition SW at ON position 6–GROUND : Continuity with rear LH, RH door open 3–GROUND : Continuity with front LH door open : PARTS LOCATION Code B8 B9
See Page
Code
See Page
Code
See Page
A
36
E2
34
J22
A
37
B
36
J1
37
J23
B
37
C7
36
J7
37
J24
A
37
D4
36
J11
37
J25
B
37
D6
38
J12
A
37
J26
37
D7
38
J13
B
37
J27
37
D8
38
J14
A
37
J33
38
J15
B
38
D9
38
37
L4
D10
38
J16
37
P9
D11
38
J17
37
R3
B
37
D12
38
J18
A
37
R4
C
37
D13
38
J19
B
37
T1
35
D14
38
37
U1
37
J20
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1J 2C 2D 2G
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Cowl Wire and Instrument Panel J/B ((Cowl Side Panel LH))
31
Floor Wire and Instrument Panel J/B (Cowl Side Panel LH)
2I 2J 2K 2L
2002 PRIUS (EWD464U)
39
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA2
42
Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
IB1
42
Floor Wire and Cowl Wire (Cowl Side Panel LH)
IC1
42
Front Door LH Wire and Cowl Wire (Left Kick Panel)
ID2
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
IE1
42
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IF1
42
Instrument Panel Wire and Floor Wire (Left Kick Panel)
IG1
42
Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IN1
44
Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
IQ1
44
Front Door RH Wire and Cowl Wire (Right Kick Panel)
BA1
46
Rear Door No.2 Wire and Floor Wire (Center Pillar LH)
BB1
46
Rear Door No.1 Wire and Cowl Wire (Center Pillar RH)
: GROUND POINTS Code ID IE
See Page
Ground Points Location
42
Cowl Side Panel LH
IF
42
Left Kick Panel
IG
42
Cowl Side Panel RH
BI
46
Left Side of Rear Pillar
BJ
46
Right Side of Rear Pillar
2002 PRIUS (EWD464U)
RADIO AND PLAYER FROM POWER SOURCE SYSTEM (SEE PAGE 50)
BR 15A DOME
10A ACC N2 NAVIGATION ECU
17 GND
2 2D AUO+
IJ2
9
L–Y
GR–R
4 B
3 B
BU+B
6 B
FL+
FL–
R2 A , R3 B , R4 C
2
F14 FRONT DOOR SPEAKER LH
1
2
F15 FRONT DOOR SPEAKER RH
RR+
8
IF1
1
2
R8 REAR SPEAKER LH
2002 PRIUS (EWD464U)
W
3 A
R
Y
IF1
RR–
1 A
5
IF1
6
IF1
W
7
Y
L 4 IN1
RL– 6 A
R
RL+ 2 A
B
LG 3 IN1
L
(* 2)
V
(* 2)
4 IG1
1
FR– 5 B
LG
(* 2)
V
(* 2)
P P
3 IG1
FR+ 1 B
B
FL–
1
(*1)
R 2
F14 FRONT DOOR SPEAKER LH
RADIO AND PLAYER
6 B
V
P (* 1)
V
2 B
ACC+B
FL+
(*1)
GR–R B
GR–R
IJ2
4 IG1
1
P
C B
B (* 1)
J24 JUNCTION CONNECTOR
C A
J26 JUNCTION CONNECTOR
C A
JUNCTION CONNECTOR
B
J27 A , J28 B
3 IG1
B
2 B
7
IJ2
L–Y
8
B
R
G G
L–Y
4 2D
IJ2
IJ1
2
R9 REAR SPEAKER RH
(*1)
4
(*1)
IJ1
11 (* 1)
V
6 1
AUO–
2
10
(* 1)
AUI–
1
GR–R
L–Y
GR–R
2 2G
AUI+
(* 1)
ACC 18
P
L–Y
+B 9
(* 1)
7 1J
* 1 : W/ NAVIGATION SYSTEM * 2 : W/O NAVIGATION SYSTEM BR
M5 MULTI DISPLAY
C
R
+B 2
L–R
P–B
9
GR
EJCT
1
BR
GR
P–B
L–R
J26 JUNCTION CONNECTOR
G
10 C
9 C
8 C
12 C
11 C
5 C
GND
ACC+B EJECT
BU+B
R2 A , R3 B , R4 C RADIO AND PLAYER GND 7 B
BR
21
IJ1
BR
TX–
BR
TX+
BR
F
G
ACC
4
R
C
F
GND
BR
F
TX+ 7
R
C
TX– 8
G
10
G
TX–
3
R
TX+
C7 CENTER CLUSTER SW
IF
2002 PRIUS (EWD464U)
RADIO AND PLAYER SERVICE HINTS R3 (B) RADIO AND PLAYER (B)4–GROUND : Always approx. 12 volts (B)3–GROUND : Approx. 12 volts with the ignition SW at ON or ACC position (B)7–GROUND : Always continuity N2 NAVIGATION ECU 9–GROUND : Always approx. 12 volts 18–GROUND : Approx. 12 volts with the ignition SW at ON or ACC position 17–GROUND : Always continuity : PARTS LOCATION Code
See Page
Code
See Page
Code
36
J27
F14
38
J28
F15
38
M5
37
R8
39
J24
37
N2
39
R9
39
J26
37
R2
A
37
R3
B
37
R4
See Page
C7
A
B
37
C
37
37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code
See Page
Junction Block and Wire Harness (Connector Location)
1J
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2D
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2G
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IF1
42
Instrument Panel Wire and Floor Wire (Left Kick Panel)
IG1
42
Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
44
Floor No.3 No 3 Wire and Instrument Panel Wire (Under the Instrument Panel Center)
44
Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
IJ1 IJ2 IN1
: GROUND POINTS Code IF
See Page 42
Ground Points Location Left Kick Panel
2002 PRIUS (EWD464U)
MEMO
2002 PRIUS (EWD464U)
NAVIGATION SYSTEM FROM POWER SOURCE SYSTEM (SEE PAGE 50) G1 GATEWAY ECU 10A ACC
GR–R
L–Y
R VG
R
6 B
2 B
BR 7
IJ1
22
IJ1
W
(SHIELDED)
G
(SHIELDED)
16
IJ1
10 B
W
5 B
(SHIELDED)
P–B
G
J12 A , J13 B
R IJ1
E
1 P2 PARKING BRAKE SW
6
R
GR–R
E
(SHIELDED)
R–Y
L–Y
B
13 TC
L–Y
GR–R
IJ1
9 A
18 A
+B
JUNCTION CONNECTOR
E A
GR–R
J26 JUNCTION CONNECTOR
4
TX1– 10 B
I5 E B
L–Y
IJ1
TX1+ 5 B
D
B
1
TC 14 A
J26 JUNCTION CONNECTOR
J27 A , J28 B
C B
PKB 13 A
TX3+
7 ID1
JUNCTION CONNECTOR
C B GR–R
J24 A , J25 B
C A
4 A
P–B
J21 JUNCTION CONNECTOR
D
B–Y
JUNCTION CONNECTOR
C B
+B1 1 C
B–Y GR–R L–Y B A
ACC 4 C
B–Y
L–Y
J14 JUNCTION CONNECTOR
IG 2 C
2 2G
B A
11 A TX3–
D
4 2D
5
M5 A , M6 B , M7 C MULTI DISPLAY
D
5 ID1
GTX+
G
2 2I
GTX– 12
R–Y
2 2D
B–Y
7 1J
5A ECU–IG
R–Y
15A DOME
D2 DATA LINK CONNECTOR 3
ACC
TX1+
N2 A , N3 B NAVIGATION ECU
2002 PRIUS (EWD464U)
TX1–
2 B R
BR
FROM POWER SOURCE SYSTEM (SEE PAGE 50)
6 C
TX–
TX+
8
7
R
M5 A , M6 B , M7 C MULTI DISPLAY
G
C7 CENTER CLUSTER SW
10A GAUGE
3 2C
B
VR
SPD
1 B
TX+
5 A
V–W
3 B
TX–
3 A
10 A
G
SYNC 8 B
R
G 7 B
C
F
R–L
GND1
J27 A G A
JUNCTION CONNECTOR
F C C
F
R
G
G A
V–W
V–W
(SHIELDED)
Y
G
B
R
G A
10
9
J26 JUNCTION CONNECTOR
R–L
1 3
IJ1 7 2B
15
IJ1
18
IJ1
19
IJ1
20
IJ1 R4 RADIO AND PLAYER
5
R–B
2
V–W
(SHIELDED)
L
Y
G
6 2A
B
B5 BACK–UP LIGHT RELAY
TX–
W–G
IJ1
R
J27 A
D A
G
8 B SYNC
3 B B
1 B
6 B
VR
5 A
VG
GND
BR
R–B
14 A
21
IJ1
5
IJ1
14 A
C10 A , C11 B COMBINATION METER 7 2A
6 2B
BR
BR
N2 A , N3 B
1 B
REV
17 A
NAVIGATION ECU
13 A
SPD
L
7 B
IF
IH
2002 PRIUS (EWD464U)
R–B
JUNCTION CONNECTOR D A
BR
17
TX+
3
NAVIGATION SYSTEM SERVICE HINTS N2 (A) NAVIGATION ECU (A) 9–GROUND : Always approx. 12 volts (A)18–GROUND : Approx. 12 volts with the ignition SW at ON or ACC position (A)17–GROUND : Always continuity M7 (C) MULTI DISPLAY (C)2–GROUND : Approx. 12 volts with the ignition SW at ON position (C)4–GROUND : Approx. 12 volts with the ignition SW at ON or ACC position (C)6–GROUND : Always continuity : PARTS LOCATION Code
See Page
B5
Code
36
C7
See Page
J14
36
J21
Code
See Page
37
M6
B
37
37
M7
C
37
C10
A
36
J24
A
37
N2
A
39
C11
B
36
J25
B
37
N3
B
39
D2
36
37
P2
37
G1
37
J27
J26 A
37
R4
37
J12
A
37
J28
B
37
J13
B
37
M5
A
37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1J
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2G
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2I
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
2A 2B 2C 2D
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
ID1
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
IJ1
44
Floor No.3 Wire and Instrument Panel Wire (Under the Instrument Panel Center)
: GROUND POINTS Code
See Page
Ground Points Location
IF
42
Left Kick Panel
IH
42
Right Kick Panel
: SPLICE POINTS Code I5
See Page 44
Wire Harness with Splice Points
Code
Instrument Panel Wire
2002 PRIUS (EWD464U)
See Page
Wire Harness with Splice Points
MEMO
2002 PRIUS (EWD464U)
GATEWAY SYSTEM FROM POWER SOURCE SYSTEM (SEE PAGE 50)
5 2C
C A
F A
5A ECU–IG
2 2I B–Y
2 2D
R–G
7. 5A ECU–B
GR–R
10A ACC
D J14 JUNCTION CONNECTOR D
JUNCTION CONNECTOR C B
GR–L
B–Y
J27 A , J28 B
14
H B 5 ID1 B–Y
MPX1
MPX2 13
ACC
BATT
G1 GATEWAY ECU
GR–L
8
B–Y
D
GR
J21 JUNCTION CONNECTOR
R–G
GR–R
D
9
E10 ENGINE CONTROL MODULE
2
11
IG
16 MPX–
MPX+
MPD2
B8 BODY ECU
5
GND
CG
14
MPD1 4
7
2
J21 JUNCTION CONNECTOR
W–B
R
G
E
GR–B
GTX+
W–B
GTX– 12
GR–B
15
MPX+
MPX– 3
TX3–
4
GR
W–B
E
11
C11 COMBINATION METER
D B
TX3+
11
J22 A , J23 B E A
MP2+
W–B
M5 MULTI DISPLAY
MPX+
JUNCTION CONNECTOR
4
A J24 JUNCTION CONNECTOR
A
W–B
A
8 2D
8 2K W–B
W–B
A J11 JUNCTION CONNECTOR ID
2002 PRIUS (EWD464U)
GR–B
A7 A/C AMPLIFIER
SERVICE HINTS G1 GATEWAY ECU 8–GROUND : Always approx. 12 volts 2–GROUND : Approx. 12 volts with the ignition SW at ON position 9–GROUND : Approx. 12 volts with the ignition SW at ACC or ON position 7, 14–GROUND : Always continuity : PARTS LOCATION Code
See Page
Code
See Page
Code
A7
36
J11
37
B8
36
J14
37
J27
C11
36
37
J28
E10
36
J22
A
37
G1
37
J23
B
37
J21
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 2C 2D 2I 2K
See Page
Junction Block and Wire Harness (Connector Location)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code ID1
See Page 42
Joining Wire Harness and Wire Harness (Connector Location) Instrument Panel Wire and Cowl Wire (Left Kick Panel)
: GROUND POINTS Code ID
See Page 42
Ground Points Location Cowl Side Panel LH
2002 PRIUS (EWD464U)
See Page
J24
M5
37 A
37
B
37 37
ELECTRIC TENSION REDUCER FROM POWER SOURCE SYSTEM (SEE PAGE 50)
5A ECU–IG
B–Y
4 2C
IJ1 B–Y
12
1 T6 TENSION REDUCER SOLENOID
G
2
3 B20 TENSION REDUCER LH [BUCKLE SW LH]
W–B
1
IJ1
W–B
11
D B J22 A , J23 B JUNCTION CONNECTOR
W–B
E A
A J24 JUNCTION CONNECTOR
W–B
A
8 2D
W–B
8 2K
A J11 JUNCTION CONNECTOR ID
2002 PRIUS (EWD464U)
SERVICE HINTS T6 TENSION REDUCER SOLENOID 1–GROUND : Approx. 12 volts with the ignition SW at ON position B20 TENSION REDUCER LH [BUCKLE SW LH] 1–3 : Closed with driver’s seat belt in use : PARTS LOCATION Code
See Page
Code
See Page
Code
See Page
B20
38
J22
A
37
J24
37
J11
37
J23
B
37
T6
39
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 2C 2D 2K
See Page
Junction Block and Wire Harness (Connector Location)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code IJ1
See Page 44
Joining Wire Harness and Wire Harness (Connector Location) Floor No.3 Wire and Instrument Panel Wire (Under the Instrument Panel Center)
: GROUND POINTS Code ID
See Page 42
Ground Points Location Cowl Side Panel LH
2002 PRIUS (EWD464U)
EMPS FROM POWER SOURCE SYSTEM (SEE PAGE 50) 1 GR–G 10A GAUGE
50A EMPS
7. 5A ECU–B
5A ECU–IG
P–B
2
W
E
A
E
A
P–B
W
J22 JUNCTION CONNECTOR
GR–G
B–R
L
2 2I J26 JUNCTION CONNECTOR
6 2G
R–G
3
B–Y
5 2A
14
13
7
D A J14 A , J15 B JUNCTION CONNECTOR E B TC
SIL
B–Y
B–R
R–G
TS
D2 DATA LINK CONNECTOR 3 22
3
EMPS ECU
IG
RLY 2 D
2
WL 7 D
M1
M2
1 B
2 B
7 IA2
1 IM1
Y
B
3
B
3
PIG 1 C
GR
Y
B–Y
5
GR
L
E3 A , E4 B , E5 C , E6 D 5 D
GR
11
3 1 EMPS RELAY
B
14
L
C10 COMBINATION METER
3
3
IP1
L
7 2A
BR
2 M
BR
B–Y
1
IH
2002 PRIUS (EWD464U)
D1 DC MOTOR
6 2B
GR–G
3 ID1
GR–G
P–B
2 ID1
P–B
W
1 ID1
W
E
C
B J16 JUNCTION CONNECTOR
GR–G
B
P–B
C
W–L
E
1 D
3 D
9 D
TC
TS
E3 A , E4 B , E5 C , E6 D SIL
TRQG
WRR
WRL 10 D
W
4 D
B
3 A
B
TRQ2 2 A
G
23
15
1
3
4
VCC
VT1
VT2
GND
5 IO1
RRO
RLO
W–B
2
(SHIELDED)
W–B
I7
S1 STEERING SHAFT TORQUE SENSOR
B11 BRAKE ECU A B
A B J18 A , J19 B JUNCTION CONNECTOR
A A
W–B
(SHIELDED)
W–B
TRQ1 4 A
R
TRQV 1 A
W
PGND 2 C
A W–B
J17 JUNCTION CONNECTOR
A
IG
2002 PRIUS (EWD464U)
(SHIELDED)
EMPS ECU
EMPS SYSTEM OUTLINE In this system, the controller determines the direction and the amount of the assistant force based on the signals from the vehicle speed sensor and the torque sensor that is built in the gear box. The controller then assists the operation of the steering wheel by controlling the DC motor installed in the steering gear box. SERVICE HINTS E5 (C), E6 (D) EMPS ECU (D) 5–GROUND : Approx. 12 volts with the ignition SW at ON position (C) 2–GROUND : Always continuity : PARTS LOCATION Code
See Page
B11
36
C10 D1 D2
Code
See Page
Code
See Page
E5
C
36
J18
36
E6
D
36
J19
34
J14
A
37
J22
37
36
J15
B
37
J26
37
S1
35
E3
A
36
J16
37
E4
B
36
J17
37
A
37
B
37
: RELAY BLOCKS Code 3
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B No.3 (Engine Compartment Right)
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 2A
See Page
Junction Block and Wire Harness (Connector Location)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2G
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2I
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
2B
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA2
42
Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
ID1
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
IM1
44
Engine Room Main Wire and Cowl Wire (Right Kick Panel)
IO1
44
Engine Wire and Cowl Wire (Right Kick Panel)
IP1
44
Instrument Panel Wire and Cowl Wire (Right Kick Panel)
: GROUND POINTS Code
See Page
Ground Points Location
IG
42
Cowl Side Panel RH
IH
42
Right Kick Panel
: SPLICE POINTS Code I7
See Page 44
Wire Harness with Splice Points
Code
Engine Wire
2002 PRIUS (EWD464U)
See Page
Wire Harness with Splice Points
SRS NOTICE: When inspecting or repairing the SRS, perform the operation in accordance with the following precautionary instructions and the procedure and precautions in the Repair Manual for the applicable model year. Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most important source of information when troubleshooting. When troubleshooting the SRS, always inspect the DTCs before disconnecting the battery. Work must be started after 90 seconds from when the ignition switch is turned to the ”LOCK” position and the negative (–) terminal cable is disconnected from the battery. (The SRS is equipped with a back–up power source so that if work is started within 90 seconds from disconnecting the negative (–) terminal cable of the battery, the SRS may be deployed.) When the negative (–) terminal cable is disconnected from the battery, the memory of the clock and audio system will be canceled. So before starting work, make a record of the contents memorized in the audio memory system. When work is finished, reset the audio systems as they were before and adjust the clock. To avoid erasing the memory in each memory system, never use a back–up power supply from outside the vehicle. Before repairs, remove the airbag sensor if shocks are likely to be applied to the sensor during repairs. Do not expose the steering wheel pad, front passenger airbag assembly, side airbag assembly, seat belt pretensioner, airbag sensor assembly or side airbag sensor directly to hot air or flames. Even in cases of a minor collision where the SRS does not deploy, the steering wheel pad, front passenger airbag assembly, side airbag assembly, seat belt pretensioner, airbag sensor assembly and side airbag sensor assembly should be inspected. Never use SRS parts from another vehicle. When replacing parts, replace them with new parts. Never disassemble and repair the steering wheel pad, front passenger airbag assembly, side airbag assembly, seat belt pretensioner, airbag sensor assembly or side airbag sensor assembly in order to reuse it. If the steering wheel pad, front passenger airbag assembly, side airbag assembly, seat belt pretensioner, airbag sensor assembly or side airbag sensor assembly has been dropped, or if there are cracks, dents or other defects in the case, bracket or connector, replace them with new ones. Use a volt/ohmmeter with high impedance (10 kΩ/V minimum) for troubleshooting the system’s electrical circuits. Information labels are attached to the periphery of the SRS components. Follow the instructions on the notices. After work on the SRS is completed, perform the SRS warning light check. If the vehicle is equipped with a mobile communication system, refer to the precaution in the IN section of the Repair Manual.
2002 PRIUS (EWD464U)
SRS FROM POWER SOURCE SYSTEM (SEE PAGE 50)
ACC AM1
10A SRS ACC
IG1
4 2E IG2 6
GR
W–R
7 AM2
B–W
ST2
I15 IGNITION SW S5 SIDE AIRBAG SENSOR RH
ABFS
GR
(* 1)
LG
4
(* 1)
3
(* 1)
2
L–Y
P
7 A
1
(* 1)
23 B
4
(* 1)
P–L
6 B
3
GR–L
L
5 B
2
(* 1)
GR
1
B–O
W–R
3
LG–B
2 2E
S4 SIDE AIRBAG SENSOR LH
(* 1)
1 2G
H13 HYBRID VEHICLE CONTROL ECU
L–W
5 2B
(* 1)
2 2C
9 1J
IG2
ACC
GSW2
10 A
VUPL
12 A
SSL+
9 A
SSL–
12 C
ESL
VUPR
9 C SSR+
7 C SSR–
10 C ESR
A17 A , A18 B , A19 C
2
1
PL+
PL–
PR+
PR–
2 A
1 A
5 C
6 C
Y
1
SFR+ 1 C
Y–B
Y–R
2
SFR– 2 C
Y
Y–G
1
SFL– 5 A
Y–B
Y–R
SFL+
(* 1)
6 A
Y–R
11 B
(* 1)
10 B
Y–G
13 B
(* 1)
14 B
Y–G
P–
(* 1)
P+
Y
D+
2
1
2
1
B
2 1B
AIRBAG SENSOR ASSEMBLY D–
Y–B
15A AM2
1 C F12 C , F13 D FUSIBLE LINK BLOCK NO. 1
B–G
1 D
120A MAIN
1
F18 FUSIBLE LINK BLOCK NO. 2
SPIRAL CABLE
A21 AIRBAG SQUIB (STEERING WHEEL PAD)
A20 AIRBAG SQUIB (FRONT PASSENGER AIRBAG ASSEMBLY)
2
S6 SIDE AIRBAG SQUIB LH
BATTERY
2002 PRIUS (EWD464U)
2
1
S7 SIDE AIRBAG SQUIB RH
P14 PRETENSIONER LH
P15 PRETENSIONER RH
FROM POWER SOURCE SYSTEM (SEE PAGE 50)
* 1 : W/ SIDE AIRBAGS
D2 DATA LINK CONNECTOR 3
AB C10 A , C11 B
9 2A
GR–R
4 2B
14 A
J27 A , J28 B
B L
C B
E
C A
L
B–Y J22 A , J23 B
E
5 B
C B JUNCTION CONNECTOR
J26 JUNCTION CONNECTOR
W
P–B
16 A
A A
2 2D
SRS WARNING LIGHT [COMB. METER]
B
1 2E
P–B
W
B–Y
J26 JUNCTION CONNECTOR
19 B
12 B
3 B
TC
SIL
LA A17 A , A18 B , A19 C
B9 BODY ECU
IJ1
L 8 2K
6 2B
1
BR
W–B
A A
A B
10
W–B
2002 PRIUS (EWD464U)
IJ1
A
W–B
A A
8 2D
7 2A
W–B
F2 FRONT AIRBAG SENSOR RH
W–B
E A F1 FRONT AIRBAG SENSOR LH
3 2E
W–B
D B
W–B
W–B
11
W–B
1
J24 A , J25 B
2
3
JUNCTION CONNECTOR
1
2
1
J22 A , J23 B
2
IJ1 P–L
B20 BUCKLE SW LH
IL1
JUNCTION CONNECTOR
4
9
W–B
IL1
BR–W
3
B–W
IL1
BR
2
W–R
IL1
E1 27 B
P–L
G–O 2
1
E2 28 B
3
A
B21 BUCKLE SW RH AND SEAT BELT WARNING OCCUPANT DETECTION SENSOR
A
8 C
W–B
RBE+
11 A
G–O
B–W
LBE+
–SR 20 B
J29 JUNCTION CONNECTOR
9 B
G–O
26 B
BR–W
15 B
BR
+SR
W–R
–SL
W–B
AIRBAG SENSOR ASSEMBLY +SL
J11 JUNCTION CONNECTOR ID
IH
JUNCTION CONNECTOR
6
GR–R
SIL 7
GR–R
TC 13
10A ACC
SRS SYSTEM OUTLINE The SRS is a driver and front passenger protection device which has a supplemental role to the seat belts. When the ignition SW is turned to ACC or ON, current from the SRS ACC fuse flows to TERMINAL (B) 6 of the airbag sensor assembly. Only when the ignition SW is on does the current flow TERMINAL (B) 5 of the airbag sensor assembly. If an accident occurs while driving, when the frontal impact exceeds a set level, current flows to TERMINALS (B) 14, (B) 10, (A) 2 and (C) 5 of the airbag sensor assembly to TERMINAL 1 of the airbag squibs and the pretensioners to TERMINAL 2 to TERMINALS (B) 13, (B) 11, (A) 1 and (C) 6 of the airbag sensor assembly to TERMINAL (B) 27, (B) 28 or BODY GROUND to GROUND, so that current flows to the front airbag squibs and the pretensioners and causes them to operate. When the side impact also exceeds a set level, current from the ignition SW (IG2) or SRS ACC fuse flows to TERMINALS (A) 5, (C) 2, (A) 2 and (C) 5 of the airbag sensor assembly to TERMINAL 1 of the side airbag squibs and the pretensioners to TERMINAL 2 to TERMINALS (A) 6, (C) 1, (A) 1 and (C) 6 of the airbag sensor assembly to TERMINAL (B) 27, (B) 28 or BODY GROUND to GROUND, causing side airbag squibs and the pretensioners to operate. The airbag stored inside the steering wheel pad is instantaneously expanded to soften the shock to the driver. The airbag stored inside the passenger’s instrument panel is instantaneously expanded to soften the shock to the front passenger. Side airbags are instantaneously expanded to soften the shock of side to the driver and front passenger (w/ side airbags). The pretensioners make sure of the seat belt restrainability. : PARTS LOCATION Code A17
See Page
Code
See Page
F1
34
Code
36
A18
B
36
A19
C
36
F12
C
34
J27
A
37
A20
36
F13
D
34
J28
B
37
A21
36
F18
38
J29
37
B9
36
H13
37
P14
39
B20
38
I15
37
P15
39
B21
38
J11
37
S4
39
F2
J25
See Page
A
34
B J26
37 37
C10
A
36
J22
A
37
S5
39
C11
B
36
J23
B
37
S6
39
36
J24
A
37
S7
39
D2
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1B
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl ( Side Panel LH))
2G
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2K
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
1J 2A 2B 2C 2D 2E
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IJ1
44
Floor No.3 Wire and Instrument Panel Wire (Under the Instrument Panel Center)
IL1
44
Instrument Panel Wire and Engine Room Main Wire (Right Kick Panel)
: GROUND POINTS Code
See Page
Ground Points Location
ID
42
Cowl Side Panel LH
IH
42
Right Kick Panel
2002 PRIUS (EWD464U)
MEMO
2002 PRIUS (EWD464U)
ABS FROM POWER SOURCE SYSTEM (SEE PAGE 50) 1
1
20A ABS NO. 3 IG2 6 2
ST2
4 1K
B
2 2C
3
B–W
W–L
I15 IGNITION SW
2
B–W
6 1K W–R
40A ABS NO. 1
W–R
7 AM2
30A ABS NO. 2
1 2G R W–R
L–O 14 IA2
3
2
4
1
3
2
4
3
3
1
4
3
6
B
2 1B
2
ABS SOL RELAY
1
2
HYDRO MTR NO. 2 RELAY
2
HYDRO MTR NO. 1 RELAY
2 15A AM2
Y–B
Y–B
L–O
9 1J
Y–B
3 R
2 LG–R
2 G
1 C
2 Y–G
G–W
2
3 B–L
F12 C , F13 D FUSIBLE LINK BLOCK NO. 1
LG–R Y–G
B–G
1 D
1 F18 FUSIBLE LINK BLOCK NO. 2 120A MAIN
G G–W
BATTERY
2002 PRIUS (EWD464U)
B1 A , B2 B , B3 C BRAKE ACTUATOR
9 C
5 C
10 C
2 B
12 C
3 B
4 C
11 C
3 C
6 C
2 C
1 C
R
1 B
R–W
Y–B
R–G
R–Y
R–L
G–W
G–B
G–O
B–O
L
LG
5 2B
R–B
B–W
1 A
2 A
21 A
7 A
8 A
9 A
4 A
3 A
5 A
6 D
1 D
8 D
12 2G R L–O
B–W
Y–B
7 B R1+
3 D R2+
1 C IG2
SFRH
SFRR
SFLH
SFLR
SRRH
SRRR
SMC1
SMC2
SS
AST
SLA+
SLA–
B10 A , B11 B , B12 C , B13 D BRAKE ECU MR2 2 D
GND1
GND2
31 A
6 A
W–B
MR1 29 A
W–B
SR 19 A
MTT
MT+
27 A
28 A
MT–
PH
18 A
11 A
PL 9 D
Y–G
Y
GR
Y–R
LG–R
W–L
B–L
3 B
3 A
6 A
1 A
5 B
Y–G
H5 A , H6 B
2 B
5 A
1 B
4 A
4 B
W–B
2 A
W–B
W–B
W–B
HYDRAULIC BOOSTER
W–B
G
W–B
G–W
W–B
E5
W–B
E5
A J1 JUNCTION CONNECTOR
A A
W–B
A
A
A J7 JUNCTION CONNECTOR
IE
2002 PRIUS (EWD464U)
W–B
ABS B1 A , B2 B , B3 C BRAKE ACTUATOR
SLR–
SG2
(SHIELDED)
15 C
EREG
R
24 C
PREG
3 A
W
25 C
VREG
7 A
B
16 C
SG1
(SHIELDED)
(SHIELDED)
12 A
E2
11 A
R
23 A
PMC
4 A
W
22 A
VCM
8 A
B
10 A
(SHIELDED)
(SHIELDED)
12 A
R
1 A
W
7 D
5 A
B
V
16 D SLR+
9 A
(SHIELDED)
7 C
P
8 C
9 C
28 C
27 C
18 C
VFR
PFR
EFR
SG3
B10 A , B11 B , B12 C , B13 D BRAKE ECU GND4
FL+
17 B
FL– 15 A
FSS 24 A
FR+
FR–
14 A
13 A
RL+
RL–
19 B
20 B
L
IB1
2
A4 ABS SPEED SENSOR FRONT LH
2
1
A5 ABS SPEED SENSOR FRONT RH
A J11 JUNCTION CONNECTOR ID
2002 PRIUS (EWD464U)
L
IB1
1
2
A23 ABS SPEED SENSOR REAR LH
(SHIELDED)
1
P 1
W–B
W–B
1
2
W–B
2
B4 BRAKE FLUID LEVEL WARNING SW
5 IB1
P
(SHIELDED)
(SHIELDED)
G
I1 R
(SHIELDED)
W–B
W–B
LG–R
BR
16 A
L
GND3 8 B
P
LBL 7 C
FROM POWER SOURCE SYSTEM (SEE PAGE 50)
B1 A , B2 B , B3 C BRAKE ACTUATOR
1
5A ECU–IG
10A ABS NO. 4 10 A
6 A
2 A 2 2
2I B–Y
3
B–Y
2 BUZZER
JUNCTION CONNECTOR E B
L
(SHIELDED)
E B 1
G
R
W
B
(SHIELDED)
J14 A , J15 B
B14 BRAKE WARNING BUZZER
D A
B–Y
B–Y
IA2 G
13
5 D VRR
13 D
20 D
PRR
19 D
ERR
6 B
22 D
SG4
20 C
IG1
+BS
BZ
B10 A , B11 B , B12 C , B13 D BRAKE ECU RRO
W
HVO–
RLO 15 B
B
17
HVO+
(SHIELDED)
18
23 B
W–B
HVI–
4
10
E6 EMPS ECU
30
HVI+
(SHIELDED)
20
R–Y 1
HVO– 22 B
I3
18 IA2
W–B
(SHIELDED)
Y
BR
I3
(SHIELDED)
I3
HVO+ 14 B
R
R–Y
BR–B
HVI– 16 B
G
HVI+ 24 B
(SHIELDED)
PKB 13 C
V
RR– 12 B
LG
RR+ 11 B
H14 HYBRID VEHICLE CONTROL ECU
2 A
A24 ABS SPEED SENSOR REAR RH
J10 JUNCTION CONNECTOR
A E J12 JUNCTION CONNECTOR
A
A B
E
J18 A , J19 B
R–Y 1 P2 PARKING BRAKE SW
JUNCTION CONNECTOR
W–B
A A W–B
RSS 21 B
A
A
J17 JUNCTION CONNECTOR
J11 JUNCTION CONNECTOR ID
2002 PRIUS (EWD464U)
IG
ABS FROM POWER SOURCE SYSTEM (SEE PAGE 50)
15A STOP
10A GAUGE
5 2A
GR–L
L
R–B
9 2K
14 S3 STOP LIGHT SW
MPX1
MPX2 13 GR
2 2K J14 A
4
JUNCTION CONNECTOR
16 A MPX–
B–W
V–R
V–R
G–W
R–Y
E A
B–W
PKB
MPX+
B8 A
E A
BODY ECU
G–W
R–Y
1
E10 ENGINE CONTROL MODULE
2
15 A 18 B
2 B
1
IP1
2 IP1
SP1
GR–B
WA
L
BRL
L
STP
L
5 B
1 B
9 A
10 A
22 A
2 B
B10 A , B11 B , B12 C , B13 D BRAKE ECU D/G
TS
10 B
4 B
P–B
W–L
GR–G
ABS
3 B
C
E
B
C
E
B
BRAKE
TC
1 ID1
14 A
3 B
C10 A , C11 B COMBINATION METER
13
7
TC
SIL
D2 DATA LINK CONNECTOR 3
GR–L
GR 11 MPX+
MP2+
G1 GATEWAY ECU
6 2B
A7 A/C AMPLIFIER
GR–G
7 2A
BR
W
A
P–B
E
A
J22 JUNCTION CONNECTOR
J26 JUNCTION CONNECTOR
E
3 ID1
W
P–B
L
W
2 ID1
GR–G
P–B
J16 JUNCTION CONNECTOR
4
GR–B
IH
2002 PRIUS (EWD464U)
MPD2
MPD1 4
14 TS
11
SYSTEM OUTLINE 1. INPUT SIGNALS (1) Speed sensor signal The speed of the wheels is detected and input to TERMINALS FL+, FR+, RL+ and RR+ of the brake ECU. (2) Stop light SW signal A signal is input to TERMINAL STP of the brake ECU when the brake pedal is depressed. 2. ABS SYSTEM OPERATION During sudden braking the brake ECU has signals input from each sensor, which controls the current to the solenoid inside the actuator and lets the hydraulic pressure acting on each wheel cylinder escape to the reservoir. The pump inside the actuator is also operating at this time and it returns the brake fluid from the reservoir to the master cylinder, thus preventing locking of the vehicle wheels. If the brake ECU judges that the hydraulic pressure acting on the wheel cylinder is insufficient, the current on the solenoid is controlled and the hydraulic pressure is increased. Holding of the hydraulic pressure is also controlled by the brake ECU, by the same method as above. Pressure reduction, holding and increase are repeated to maintain vehicle stability and to improve steerability during sudden braking. SERVICE HINTS A4, A5 ABS SPEED SENSOR FRONT LH, RH 2–1 : 1.4–1.8 kΩ (20°C, 68°F) A23, A24 ABS SPEED SENSOR REAR LH, RH 2–1 : 1.04–1.3 kΩ (20°C, 68°F) B10 (A), B11 (B), B12 (C), B13 (D) BRAKE ECU (B) 6, (C) 1–GROUND : Approx. 12 volts with the ignition SW at ON position (D) 22–GROUND : Always approx. 12 volts (A) 6, (A)31–GROUND : Always continuity : PARTS LOCATION Code
See Page
Code
See Page
Code
See Page
A4
34
C10
A
36
J10
37
A5
34
C11
B
36
J11
37
A7
36
D2
36
J12
A23
38
E6
36
J14
A
37
A24
38
E10
36
J15
B
37
37
B1
A
34
F12
C
34
J16
37
B2
B
34
F13
D
34
J17
37
C
34
F18
38
J18
A
37
34
G1
37
J19
B
37
B3 B4 B8
A
36
H5
A
34
J22
37
B10
A
36
H6
B
34
J26
37
B11
B
36
H14
37
P2
37
B12
C
36
I15
37
S3
37
B13
D
36
J1
37
36
J7
37
B14
: RELAY BLOCKS Code
See Page
Relay Blocks (Relay Block Location)
2
23
Engine Room R/B No.2 (Right Side of Reserve Tank)
3
24
Engine Room R/B No.3 (Engine Compartment Right)
2002 PRIUS (EWD464U)
ABS
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code
See Page
Junction Block and Wire Harness (Connector Location)
1B 1J
27
Engine g Room Main Wire and Engine g Room J/B (Engine ( g Compartment Left))
30
Instrument Panel Wire and Instrument Panel J/B (Cowl ( Side Panel LH))
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
1K 2A 2B 2C 2G 2I 2K
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA2
42
Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
IB1
42
Floor Wire and Cowl Wire (Cowl Side Panel LH)
ID1
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
IP1
44
Instrument Panel Wire and Cowl Wire (Right Kick Panel)
: GROUND POINTS Code ID
See Page
Ground Points Location
42
Cowl Side Panel LH
IG
42
Cowl Side Panel RH
IH
42
Right Kick Panel
IE
: SPLICE POINTS Code
See Page
E5
40
I1
44
Wire Harness with Splice Points Engine Room Main Wire
Code I3
2002 PRIUS (EWD464U)
See Page 44
Wire Harness with Splice Points Cowl Wire
MEMO
2002 PRIUS (EWD464U)
REAR WINDOW DEFOGGER FROM POWER SOURCE SYSTEM (SEE PAGE 50) 1
40A DEF
10A GAUGE
2
5
1 DEF RELAY
3
4 2M
2
13 DFG
MPX+
B8 A BODY ECU
GR–B
B
15 A
2 MPX+
C11 COMBINATION METER
MPX–
GR
3
1 11 REAR WINDOW DEFOGGER
MPX
REAR WINDOW DEFOGGER SW PSG SW RDEF A7 A/C AMPLIFIER
N4 NOISE FILTER (REAR WINDOW DEFOGGER)
2002 PRIUS (EWD464U)
SERVICE HINTS DEF RELAY 5–3 : Closed with the ignition SW on and the rear window defogger SW on : PARTS LOCATION Code
See Page
A7 B8
A
Code
See Page
36
C11
36
36
N4
39
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 2M
See Page
31
Junction Block and Wire Harness (Connector Location) Floor Wire and Instrument Panel J/B (Cowl Side Panel LH)
2002 PRIUS (EWD464U)
Code
See Page
COMBINATION METER FROM POWER SOURCE SYSTEM (SEE PAGE 50)
B8 A , B9 B BODY ECU
MPX– 16 B
9 2J BR–R
8 2J
5
1
6 BR–R
6 2J
MPX+ 15 A
GR–B
FU– 19
GR
FU+ 11
Y–B
L–Y
FUA 20
Y–B
7 1J
R–G
5 2A
B 9 B
Y
5 2C
15A DOME
Y
10A GAUGE
R–G
7. 5A ECU–B
L–R
L–Y
JUNCTION CONNECTOR
SENSOR
F A 4 2A
MPX2
MPX1 14
4
L
GR–L
L–Y
L–W
8
R–G
13
4 IP1
E10 ENGINE CONTROL MODULE
2 2G
J27 A L
F A
F16 FUEL SENDER
FUEL SENDER
5
IP1
L
L
20 A
12 A
6 B
1 B
9 A
11 A
LG–R
W–G
L
L
GR–L C10 A , C11 B 22 A
21 A
COMBINATION METER
1
BR
H8 ODO/TRIP SW [HAZARD WARNING SW]
IH
2002 PRIUS (EWD464U)
FROM EMPS ECU
6 2B
TC FROM BRAKE ECU
ODO
FROM BACK–UP LIGHT RELAY
5 E
7 B
TO LIGHT CONTROL RHEOSTAT
3 7 2A
1 A
W–L
L
3 A
L
2 A
L
14 A
L
VFD
2 B
11
FROM HYBRID VEHICLE CONTROL ECU
V–W
G B
FROM ENGINE CONTROL MODULE
G B
MPD2
J27 A , J28 B JUNCTION CONNECTOR G A
4
7 2B
G A
G A V–W
4
V–W
MPD1
GR–B A7 A/C AMPLIFIER
G1 GATEWAY ECU
GR–L
V–W
FROM MULTI DISPLAY V–W
FROM NAVIGATION ECU
MP2+
MPX+
6 2A
L
GR–L
GR
11
3 B
13 A
C10 A , C11 B
BUZZER
2002 PRIUS (EWD464U)
CHARGE
OIL
SEAT BELT (FRONT PASSENGER’ S SEAT)
SEAT BELT (DRIVER’ S SEAT)
BRAKE
HEAD
DOOR
COMBINATION METER
2002 PRIUS (EWD464U)
TO AIRBAG SENSOR ASSEMBLY
TO BRAKE ECU
TO ENGINE CONTROL MODULE
4 B 10 A 16 A
L
B–Y
C10 A , C11 B L
COMBINATION METER
FROM HEADLIGHTS (* 1) FROM DAYTIME RUNNING LIGHT RELAY (* 2)
FROM TURN SIGNAL FLASHER RELAY
B
HIGH BEAM
GR–R L
GR–R
TURN R
C B
L
J27 A , J28 B
GR–R
JUNCTION CONNECTOR J26 JUNCTION CONNECTOR
GR–R
FROM POWER SOURCE SYSTEM (SEE PAGE 50)
TURN L
SRS
ABS
MALFUNCTION INDICATOR LAMP
C A
G–R
OUTPUT CONTROL
WATER TEMP. (HIGH)
WATER TEMP. (LOW)
CRUISE
COMBINATION METER * 1 : W/O DAYTIME RUNNING LIGHT * 2 : W/ DAYTIME RUNNING LIGHT
10A ACC
2 2D
B
5 B 19 A 18 A 17 A
SERVICE HINTS C10 (A), C11 (B) COMBINATION METER (A)22–GROUND : Approx. 12 volts with the ignition SW at ON position (B) 5–GROUND : Approx. 12 volts with the ignition SW at ON or ACC position (A)21–GROUND : Always approx. 12 volts (A)14–GROUND : Always continuity : PARTS LOCATION Code
See Page
A7
36
Code C11
See Page B
Code
See Page
36
H8
37
J26
37
B8
A
36
E10
36
B9
B
36
F16
38
J27
A
37
C10
A
36
G1
37
J28
B
37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1J
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2G
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2J
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
2A 2B 2C 2D
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code IP1
See Page 44
Joining Wire Harness and Wire Harness (Connector Location) Instrument Panel Wire and Cowl Wire (Right Kick Panel)
: GROUND POINTS Code IH
See Page 42
Ground Points Location Right Kick Panel
2002 PRIUS (EWD464U)
RADIATOR FAN AND CONDENSER FAN FROM POWER SOURCE SYSTEM (SEE PAGE 50) 1
30A RDI
30A CDS FAN
5A ECU–IG
2 7 2G
1
W–G 1 M 2
5 1K
B–Y
2
12 1J
4 1J
B–Y
2 1K
7 IE1
E5
RF
A8 A/C AMPLIFIER
2
V–Y
1 W–B
E A J27 A , J28 B
A3 A/C SINGLE PRESSURE SW A B
JUNCTION CONNECTOR
V–Y
3
11 IE1
V–Y
W–B
W–B
10 1J
6 IE1
2 W4 WATER TEMP. SW
A W–B
J7 JUNCTION CONNECTOR
A A
W–B
M
FAN
5 1J
A1 A/C CONDENSER FAN MOTOR G–W
4 R1 RADIATOR FAN MOTOR
3
R–W
2
FAN NO. 3 RELAY
2
L–W
11 1A
LG
L–W
3 1K
1
FAN NO. 2 RELAY 5
W–B
2
7 1K
5
4
FAN NO. 1 RELAY 3
1
V–Y
3
R–W
1
E7 ENGINE CONTROL MODULE
5
A
1
W–B
A J1 JUNCTION CONNECTOR IE
2002 PRIUS (EWD464U)
SYSTEM OUTLINE The radiator fan motor and A/C condenser fan motor operates according to the water temp. SW (Inverter), A/C single pressure SW, and the A/C system condition. The FAN NO.1 relay, FAN NO.2 relay, FAN NO.3 relay are turned on/off, to operate the fan motors at low speed (In series), or high speed (In parallel). 1. LOW SPEED OPERATION When the water temp. SW (Inverter) is on, the radiator fan motor and A/C condenser fan motor operates at low speed. 2. HIGH SPEED OPERATION When the water temp. SW (Inverter) is on, if the A/C system is operating A/C single pressure SW is on, the radiator fan motor and A/C condenser fan motor operates at high speed. SERVICE HINTS A3 A/C SINGLE PRESSURE SW 3–2 : Close above approx. 1520 kpa (15.5 kgf/cm2, 220 psi) Open below approx. 1230 kpa (12.5 kgf/cm2, 178 psi) : PARTS LOCATION Code
See Page
Code
See Page
A1
34
J1
A3
34
A8
36
J27
A
37
E7
36
J28
B
37
J7
Code
See Page
37
R1
35
37
W4
35
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1A 1J 1K 2G
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Wire and Engine Room J/B (Engine Compartment Left)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code IE1
See Page 42
Joining Wire Harness and Wire Harness (Connector Location) Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
: GROUND POINTS Code IE
See Page 42
Ground Points Location Cowl Side Panel LH
: SPLICE POINTS Code E5
See Page 40
Wire Harness with Splice Points
Code
Engine Room Main Wire
2002 PRIUS (EWD464U)
See Page
Wire Harness with Splice Points
AIR CONDITIONING FROM POWER SOURCE SYSTEM (SEE PAGE 50) 1
50A HTR
2
5
5
1
HTR RELAY
4
8 1K
13 1J
5 1A
3 1F
4 1F
LG–R
R
2
B–L
3
L–O
3
B–R
2
CLR MG RELAY
3 1K W–B
1
A (*1) B (*2)
J6 JUNCTION CONNECTOR
J2 A ,
A B
LG–R
A B
A (* 1) B (* 2)
JUNCTION CONNECTOR
A A
B–R
A A
J3 B
8 IE1
L–O LG–R B–L
1
13 IE1
M
R
B–R
R B6 BLOWER MOTOR
V
R
3
L–Y R
GND
3
3
4 1
3 A/C W/P RELAY
2
1
5
3
2 W2 WATER PUMP MOTOR (A/C)
M
3
L–Y
W–B
W–B
B7 BLOWER MOTOR LINEAR CONTROLLER
4
E5
1 L
W–B
SI
A3 A/C DUAL PRESSURE SW
+B
W–B
2
VM
W–B
1
V
B–W
2
L–R
W–B
L–R J1 JUNCTION CONNECTOR A A
IE
2002 PRIUS (EWD464U)
A W–B
A
A
A J7 JUNCTION CONNECTOR
W–B
* 1 : W/ DAYTIME RUNNING LIGHT * 2 : W/O DAYTIME RUNNING LIGHT
FROM POWER SOURCE SYSTEM (SEE PAGE 50)
3 2D
5 2C
R–G
7. 5A ECU–B
R
10A HTR
W
L–O
1
A12 A/C THERMISTOR
A B
FROM FAN NO. 2 RELAY
F A
W
A10 A/C ROOM TEMP. SENSOR
F A
FROM CONVERTER
C A J27 A
J22 A , J23 B
C A
JUNCTION CONNECTOR
JUNCTION CONNECTOR
R
L–O
2
2
1
R–G
Y
R–W
W
W
W
W
R
R
B–L
LG–R
LG–R
10 B
1 A
8 A
10 A
1 B
4 C
3 C
1 C
2 C
IG
+B
MGC
RF
IDH
V
TR
SGTR
TE
SGTE
A7 A , A8 B , A9 C A/C AMPLIFIER
W–L 4 IK1
W–B A B
BR–W
1
4
2
A B
W–B
8 2D
2 8 2K W–B
A2 A/C MAGNETIC CLUTCH AND LOCK SENSOR
W4 WATER TEMP. SW
L–R
W–B
A A
11 IE1 V–Y
W–L
IK1
B–L
L–Y
5
E A
IE1 J24 A , J25 B
5
GND 7 A
JUNCTION CONNECTOR W–B
4 IE1
BR–W
IE1
L–R
L–Y
V
20
CF 2 B
V–Y
L–Y 15 IE1
SGLOCK 18 B
J27 A , J28 B
V 21 IE1
LOCK 9 B
JUNCTION CONNECTOR V–Y
WP 3 B
V
C (* 1) A (* 2)
PSW 11 B
BR–W
BLW 3 A
W–L
J6 JUNCTION CONNECTOR
L–R
C (* 1) A (* 2)
1
A J11 JUNCTION CONNECTOR ID
2002 PRIUS (EWD464U)
AIR CONDITIONING
B8 A BODY ECU
HRLY 18
MPX+
MPX–
15 A
16 A
4
MEO2 3 D
13 D
23 C
MPX2
ACT
TAM
E2
22 D
18 B
2 IK1
E 8 B , E 9 C , E10 D
MPD1
MPX1
ENGINE CONTROL MODULE
W–G 14 D
MPD2
2
1
LG
P–G
11 A
4 A
4 B
5 B
MP2+
NE
ACT
A7 A , A8 B , A9 C A/C AMPLIFIER AIR
2
1
2
3
4
5
A11 A/C SOLAR SENSOR
21 C
W
AIF 22 C
W
TPI 19 C
W
S5TPI 18 C
W
SGTPI 20 C
W
TS 5 C
W
S5TS 6 C
W
MPX+
BR–W
GR–B
BR
3
11 G1 GATEWAY ECU
MPX–
C11 COMBINATION METER
2 MPX+
A6 AMBIENT TEMP. SENSOR
W–G
GR
GR–B
5 IA2 GR–L
GR
L–O
6 2F
1
W
M
A14 AIR INLET CONTROL SERVO MOTOR
2002 PRIUS (EWD464U)
TSET
MSET
PIG5
PSG
SW A/C
SW F/R
SW RDEF
SW FULL A/C
PIG
LED A/C
LED F/R
LED RDEF
LED FULL A/C
A7 A , A8 B , A9 C A/C AMPLIFIER
II1
II1
4
II1
2
II1
W
W
W
W 3
1
II1
Y–B
5
AOD 11 C
R
II1
AOF 10 C
GR–L
10
W
W
II1
TPM 8 C
BR–W
9
9 C
W
II1
SGTPM
BR–R
7
S5TPM 7 C
L
II1
AMH 13 C
Y–R
8
AMC 14 C
BR–Y
II1
W
W 6
TP 16 C
W
SGTP 15 C
W
S5TP 17 C
W–R
BSET
1
2
3
4
5
1
2
3
4
5
M
A15 AIR MIX CONTROL SERVO MOTOR
M
A16 AIR VENT MODE CONTROL SERVO MOTOR
2002 PRIUS (EWD464U)
AIR CONDITIONING FROM POWER SOURCE SYSTEM (SEE PAGE 50) 1
50A HTR3
30A HTR2
2
2 3
3
1
2
R–L
R–L
(* 3)
(* 3)
3
3
3
1
3
1
3
3 HTR1 RELAY
5
3
2
3
5
3
3
P–B(* 3) (* 3)
L–Y(* 3)
G–R
(* 3)
P P–B
18 IE1
2
L–R
P
3
HTR2 RELAY
5
3
3
3
HTR3 RELAY 2
3
B–R
G–W
3
G
R–L
8 2G
30A HTR1
(*3)
10A GAUGE
1
(*3)
* 3 : COLD AREA SPEC.
1
13 B 1 A
HTR2
3 B
1 B P3 A , P4 B
A7 A , A8 B , A9 C
PTC HEATER
A/C AMPLIFIER 2 A
4 B
2 B
HTRO
A
A J1 JUNCTION CONNECTOR
IE
2002 PRIUS (EWD464U)
W–B
(* 3) (*3)
5 IA1
W–B
(* 3)
W–B
IA1
(*3)
1
W–B
(* 3)
16 IE1
W–B
P–B
W–B
6 B
A J11 JUNCTION CONNECTOR
ID
SERVICE HINTS A3 A/C DUAL PRESSURE SW 1–4 : Open with the refrigerant pressure at less than approx. 196 kpa (2.0 kgf/cm2, 28.4 psi), or more than approx. 3140 kpa (32 kgf/cm2, 455 psi), A7 (A), A8 (B), A9 (C) A/C AMPLIFIER (A) 8–GROUND : Always approx. 12 volts (A) 1–GROUND : Approx. 12 volts with the ignition SW at ON position (A) 7–GROUND : Always continuity : PARTS LOCATION Code
See Page
Code
See Page
Code
See Page
A2
34
B6
36
J7
37
A3
34
B7
36
J11
37
A6
34
B8
36
J22
A
37
36
J23
B
37
B
36
J24
A
37
E9
C
36
J25
B
37
E10
D
36
J27
A
37
G1
37
J28
B
37
J1
37
P3
A
37
A
37
P4
B
37
B
37
W2
35
37
W4
35
A7
A
36
A8
B
36
E8
A9
C
36
A10
36
A11
36
A12
36
A14
36
J2
A15
36
J3
A16
36
A C11
J6
: RELAY BLOCKS Code 3
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B No.3 (Engine Compartment Right)
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1A
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Wire and Engine Room J/B (Engine Compartment Left)
27
Engine g Room Main Wire and Engine g Room J/B (Engine ( g Compartment Left))
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
1F 1J 1K 2C 2D 2F 2G 2K
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code IA1
See Page
Joining Wire Harness and Wire Harness (Connector Location)
42
Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
IE1
42
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
II1
44
Instrument Panel Wire and A/C Sub Wire (Instrument Panel Brace LH)
IK1
44
Engine Wire and Engine Room Main Wire (Right Kick Panel)
IA2
: GROUND POINTS Code ID IE
See Page 42
Ground Points Location Cowl Side Panel LH
2002 PRIUS (EWD464U)
AIR CONDITIONING : SPLICE POINTS Code E5
See Page 40
Wire Harness with Splice Points
Code
Engine Room Main Wire
2002 PRIUS (EWD464U)
See Page
Wire Harness with Splice Points
MEMO
2002 PRIUS (EWD464U)
I GROUND POINT W–B
W–B
W–B
FRONT SIDE MARKER LIGHT RH
W–B
FRONT TURN SIGNAL LIGHT RH
W–B
BRAKE FLUID LEVEL WARNING SW
W–B
W–B
INVERTER
W–B
W–B
W–B
W–B
W–B
A A
E1
W–B
E1 W–B
EC
(GND1) BRAKE ECU
J1 JUNCTION CONNECTOR
E1
W–B
3
HYDRAULIC BOOSTER
W–B
W–B
A
A
W–B
A
A
W–B
(GND2)
PTC HEATER
BLOWER MOTOR LINEAR CONTROLLER
IE
(*1)
IGNITION COIL AND IGNITER NO. 2
W–B
IGNITION COIL AND IGNITER NO. 3
W–B
IGNITION COIL AND IGNITER NO. 4
W–B
J8 A ,
J9 B
JUNCTION CONNECTOR A A B A
E3
BR
E3
14 IO1
BR
BR
W–B
E3
14 ID2
BR
(E1)
ENGINE CONTROL MODULE
(SG)
DATA LINK CONNECTOR 3
(E01)
BR
W–B
W–B
IGNITION COIL AND IGNITER NO. 1
W–B
DRL RELAY
RADIATOR FAN MOTOR
W–B
A
E1
W–B
WATER TEMP. SW
W–B
W–B
W–B
W–B
FRONT SIDE MARKER LIGHT LH
FRONT TURN SIGNAL LIGHT LH
E1 W–B
W–B
FRONT WIPER MOTOR
W–B
E5
A
W–B
E1
ENGINE HOOD COURTESY SW
W–B
E5
W–B
FRONT PARKING LIGHT RH
J7 JUNCTION CONNECTOR
E5
W–B
W–B
W–B
E5
W–B
FRONT PARKING LIGHT LH
IG2 RELAY
HTR RELAY
E5
E5
W–B
W–B
3 1K
EFI RELAY
E5
W–B
WATER PUMP MOTOR (A/C)
W–B
E5
E5
W–B
HYDRAULIC BOOSTER
W–B
E5
W–B
(CUT–)
A
W–B
(–S) A/C TRIPLE PRESSURE SW
A
W–B
E5 W–B
2
IGCT RELAY
FAN NO. 2 RELAY
W–B
WATER PUMP MOTOR (INVERTER)
W–B
W–B W–B
(ME01) ENGINE CONTROL MODULE
W–B
(E03)
EB
EA
BR (* 2)
AIRBAG SENSOR ASSEMBLY
(E1)
COMBINATION METER
(ES)
W–B
L
7 2A
ENGINE CONTROL MODULE (E02)
21 IJ1
BR (* 2) BR
6 2B
BR
BR
IH
IF
2002 PRIUS (EWD464U)
NAVIGATION ECU
RADIO AND PLAYER
MULTI DISPLAY
HYBRID VEHICLE CONTROL ECU
(EOM)
KEY INTERLOCK SOLENOID
(KLS–)
W–B
E
E
W–B
W–B
E
E
W–B
W–B
E
J21 JUNCTION CONNECTOR
LIGHT CONTROL RHEOSTAT
(E)
(CG)
GATEWAY ECU
* 1 : W/ DAYTIME RUNNING LIGHT * 2 : W/ NAVIGATION SYSTEM
J22 A , J23 B JUNCTION CONNECTOR D E B A
W–B
HAZARD WARNING SW
W–B
W–B
WIRELESS DOOR CONTROL RECEIVER
E A
D B
E A
W–B
A B
A A
W–B
A B
A A
W–B
W–B
A B
A A
W–B
W–B
A B
A A
W–B
A B
A A
11 IJ1
W–B
W–B
BUCKLE SW AND TENSION REDUCER LH
PARK/NEUTRAL POSITION SW
D B
W–B
(TL)
W–B
A/C AMPLIFIER
UNLOCK WARNING SW
(UN–)
REMOTE CONTROL MIRROR SW
SHIFT LOCK ECU
BUCKLE SW RH AND SEAT BELT WARNING OCCUPANT DETECTION SENSOR
W–B
10 IJ1
W–B
2 IG1
W–B
W–B
(E2)
(CG)
DATA LINK CONNECTOR 3
DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SW AND DOOR UNLOCK DETECTION SW FRONT LH
W–B
J24 A , J25 B
AIRBAG SENSOR ASSEMBLY
GATEWAY ECU
CIGARETTE LIGHTER
JUNCTION CONNECTOR
A A
(GND)
(E)
BODY ECU
W–B
8 2D
IG1 RELAY
W–B
3 2E
ACC RELAY
W–B
8 2K
W–B
W–B
TRANSPONDER KEY COMPUTER POWER WINDOW MASTER SW
(E)
A
1 IC1
W–B
W–B
5 IA1
W–B
A
W–B
1 IA1
W–B
A
A
J11 JUNCTION CONNECTOR
FUEL PUMP
W–B
A
W–B
1 BB1
A
W–B
1 IQ1
J17 JUNCTION CONNECTOR
W–B
DAYTIME RUNNING LIGHT RELAY
W–B
A
W–B
PTC HEATER (E)
A
W–B
J10 JUNCTION CONNECTOR W–B A A W–B
W–B
EMPS ECU
B3
W–B
POWER WINDOW CONTROL SW REAR RH
W–B
DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SW REAR RH
(*1) (GND3)
W–B
A
W–B
POWER WINDOW CONTROL SW FRONT RH
BRAKE ECU (GND4)
W–B
A
ID
W–B
A
A
IG
2002 PRIUS (EWD464U)
W–B
W–B
(EL)
COMBINATION SW W–B
I GROUND POINT REAR COMBINATION LIGHT LH
W–B
C B
B A
W–B
LICENSE PLATE LIGHT LH
W–B
C B
B A
W–B
HIGH MOUNTED STOP LIGHT
W–B
C B
B A
REAR COMBINATION LIGHT RH
W–B
LICENSE PLATE LIGHT RH
W–B
1 BA1 W–B
W–B
PERSONAL LIGHT
B1
W–B
POWER WINDOW CONTROL SW REAR LH
W–B
DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SW REAR LH
BI
W–B
BK
W–B
W–B
J32 A , J33 B JUNCTION CONNECTOR
BATTERY MOTOR BLOWER CONTROLLER
SYSTEM MAIN RELAY
LUGGAGE COMPARTMENT DOOR UNLOCK SW
W–B
B B
W–B
B B
W–B
BATTERY ECU
W–B
(E)
COMBINATION SW
(E)
TURN SIGNAL FLASHER RELAY
W–B
W–B
C A
W–B
BATTERY FAN RELAY
BATTERY INPUT RELAY
J32 A , J33 B
BJ
COMBINATION SW
B B
C A
JUNCTION CONNECTOR
W–B
A A
A B
W–B
7 IQ1
W–B
W–B
A A
A B
W–B
2 IQ1
W–B
W–B
A A
A B
W–B
W–B
A A W–B
A A J18 A , J19 B
W–B
8 BC1
JUNCTION CONNECTOR
BL
W–B
2002 PRIUS (EWD464U)
DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SW AND DOOR UNLOCK DETECTION SW FRONT RH DOOR LOCK CONTROL SW FRONT RH
(ECC)
W–B
B A
C B
W–B
C B
W–B
J18 A , J19 B JUNCTION CONNECTOR
COMBINATION SW
(GND1) HYBRID VEHICLE CONTROL ECU (GND2)
: PARTS LOCATION Code
See Page
J1
Code
37
J7
See Page
J17
Code
See Page
37
J24
A
37
37
J18
A
37
J25
B
37
J8
A
37
J19
B
37
J32
A
38
J9
B
37
37
J33
B
38
J21
J10
37
J22
A
37
J11
37
J23
B
37
: RELAY BLOCKS Code
See Page
Relay Blocks (Relay Block Location)
2
23
Engine Room R/B No.2 (Right Side of Reserve Tank)
3
24
Engine Room R/B No.3 (Engine Compartment Right)
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR ,,, ,,, Code 1K
See Page
Junction Block and Wire Harness (Connector Location)
27
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
30
Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
31
Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
2A 2B 2D 2E 2K
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
42
Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
IC1
42
Front Door LH Wire and Cowl Wire (Left Kick Panel)
ID2
42
Instrument Panel Wire and Cowl Wire (Left Kick Panel)
IG1
42
Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IJ1
44
Floor No.3 Wire and Instrument Panel Wire (Under the Instrument Panel Center)
IO1
44
Engine Wire and Cowl Wire (Right Kick Panel)
IQ1
44
Front Door RH Wire and Cowl Wire (Right Kick Panel)
BA1
46
Rear Door No.2 Wire and Floor Wire (Center Pillar LH)
BB1
46
Rear Door No.1 Wire and Cowl Wire (Center Pillar RH)
BC1
46
Cowl Wire and Fuel Tank Wire (Near the Fuel Tank)
: GROUND POINTS Code EA EB EC ID IE
See Page
Ground Points Location
40
Engine Block
40
Engine Compartment Left
42
Cowl Side Panel LH
IF
42
Left Kick Panel
IG
42
Cowl Side Panel RH
IH
42
Right Kick Panel
BI
46
Left Side of Rear Pillar
BJ
46
Right Side of Rear Pillar
BK
46
Back Panel Center
BL
46
Near the Fuel Tank
2002 PRIUS (EWD464U)
I GROUND POINT : SPLICE POINTS Code
See Page
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
E1
40
Engine Room Main Wire
B1
46
Rear Door No.2 Wire
E3
40
Engine Wire
B3
46
Rear Door No.1 Wire
E5
40
Engine Room Main Wire
2002 PRIUS (EWD464U)
MEMO
2002 PRIUS (EWD464U)
J POWER SOURCE (Current Flow Chart)
2002 PRIUS (EWD464U)
J
2002 PRIUS (EWD464U)
J POWER SOURCE (Current Flow Chart) Fusible Link Block No.1 (See Page 22) Fuse
100A
DC/DC
System
Page
Illumination Key Reminder and Light Reminder Buzzer Light Auto Turn Off Taillight
92 114 104 88
TOYOTA Hybrid System
54
Fusible Link Block No.2 (See Page 23) Fuse 5A
120A
DC/DC–S
MAIN
System
Page
TOYOTA Hybrid System
54
ABS Engine Control Headlight (w/o Daytime Running Light) Hybrid Vehicle Immobiliser System
172 68 84 78
Illumination Key Reminder and Light Reminder Buzzer Light Auto Turn Off SRS
92 114 104 167
Taillight TOYOTA Hybrid System
88 54
Engine Room R/B No.3 (See Page 24) Fuse
System
Page
7.5A
DRL
Headlight (w/ Daytime Running Light)
80
10A
ABS NO.4
ABS
172
30A
HTR1
Air Conditioning
188
30A
HTR2
Air Conditioning
188
40A
ABS NO.1
ABS
172
50A
EMPS
EMPS
164
50A
HTR3
Air Conditioning
188
Engine Room J/B (See Page 26) Fuse
System
Page
10A
BATT FAN
TOYOTA Hybrid System
54
10A
HEAD (LH)
Headlight (w/o Daytime Running Light)
84
10A
HEAD (RH)
Headlight (w/o Daytime Running Light)
84
10A
HEAD HI (LH)
Headlight (w/ Daytime Running Light)
80
10A
HEAD HI (RH)
Headlight (w/ Daytime Running Light)
80
10A
HEAD LO (LH)
Headlight (w/ Daytime Running Light)
80
10A
HEAD LO (RH)
Headlight (w/ Daytime Running Light)
80
10A
HORN
Horn Theft Deterrent
124 146
10A
TURN–HAZ
Turn Signal and Hazard Warning Light
96
∗ These are the page numbers of the first page on which the related system is shown.
2002 PRIUS (EWD464U)
J Fuse
15A
15A
AM2
DOME
System
Page
ABS Engine Control Hybrid Vehicle Immobiliser System SRS
172 68 78 167
TOYOTA Hybrid System
54
Combination Meter Door Lock Control Headlight (w/ Daytime Running Light) Headlight (w/o Daytime Running Light)
182 134 80 84
Illumination Interior Light Key Reminder and Light Reminder Buzzer Navigation System
92 108 114 156
Power Window Radio and Player Seat Belt Warning Theft Deterrent
126 152 118 146
TOYOTA Hybrid System Wireless Door Lock Control
54 140
15A
EFI
Engine Control
68
15A
THRO
Engine Control
68
20A
ABS NO.3
ABS
172
20A
HV
TOYOTA Hybrid System
54
30A
ABS NO.2
ABS
172
30A
CDS FAN
Radiator Fan and Condenser Fan
186
30A
HEAD
Headlight (w/ Daytime Running Light) Key Reminder and Light Reminder Buzzer Light Auto Turn Off
80 114 104
30A
RDI
Radiator Fan and Condenser Fan
186
50A
HTR
Air Conditioning
188
Instrument Panel J/B (See Page 30) Fuse
5A
ECU–IG
System
Page
ABS Electric Tension Reducer EMPS Gateway System
172 162 164 160
Navigation System Radiator Fan and Condenser Fan Shift Lock
156 186 132
5A
PANEL
Illumination
92
7.5A
ECU–B
Air Conditioning Combination Meter
188 182
∗ These are the page numbers of the first page on which the related system is shown.
2002 PRIUS (EWD464U)
J POWER SOURCE (Current Flow Chart) Fuse
7.5A
7.5A
7.5A
10A
10A
System
Page
Door Lock Control EMPS Gateway System Headlight (w/ Daytime Running Light)
134 164 160 80
Hybrid Vehicle Immobiliser System Interior Light Key Reminder and Light Reminder Buzzer Light Auto Turn Off
78 108 114 104
Power Window Theft Deterrent Wireless Door Lock Control
126 146 140
OBDII
Engine Control Theft Deterrent
68 146
TAIL
Key Reminder and Light Reminder Buzzer Light Auto Turn Off Taillight
114 104 88
Combination Meter Gateway System Navigation System Radio and Player
182 160 156 152
Remote Control Mirror Shift Lock SRS
130 132 167
ABS Air Conditioning Back–Up Light Combination Meter
172 188 102 182
Door Lock Control EMPS Engine Control Headlight (w/ Daytime Running Light)
134 164 68 80
Key Reminder and Light Reminder Buzzer Light Auto Turn Off Navigation System Power Window
114 104 156 126
Rear Window Defogger Seat Belt Warning Theft Deterrent TOYOTA Hybrid System
180 118 146 54
Turn Signal and Hazard Warning Light Wireless Door Lock Control
96 140
ECU–B
ACC
GAUGE
10A
HTR
Air Conditioning
188
10A
SRS ACC
SRS
167
∗ These are the page numbers of the first page on which the related system is shown.
2002 PRIUS (EWD464U)
J Fuse 15A
System
Page
CIG
Cigarette Lighter
122
15A
STOP
ABS Engine Control Shift Lock Stop Light
172 68 132 100
15A
WASHER
Wiper and Washer
120
20A
PWR1
Power Window
126
30A
DOOR
Door Lock Control Theft Deterrent Wireless Door Lock Control
134 146 140
30A
POWER
Power Window
126
30A
WIPER
Wiper and Washer
120
40A
DEF
Rear Window Defogger
180
∗ These are the page numbers of the first page on which the related system is shown.
2002 PRIUS (EWD464U)
K CONNECTOR LIST A1
A2
A3
A4
A5
A6
BLACK
GRAY
BLACK
GRAY
GRAY
BLACK
1
1
1
2
1 2 3 4
2
A7
1 4
A8
1 2 3 4 5 6 7 8 9
8 9 10 11 12 13 14
10 11 12 13 14 15 16 17 18
A12
1 2
1 2 3 4 5 6 7 8 9 1011 1213141516171819 202122
A13
1 4
1 2
A16
1 2
A10
A14
A15
BLACK
1 2
2
A9
1 2 3 4 5 6 7
A11
2
3
2 5
BLACK
3 6
1 2 3 4 5
1 2 3 4 5
A17
A18
A19
A20
YELLOW
YELLOW
YELLOW
YELLOW
A
B
1 2 3 4 5
1 2 3 1 2 3 4 5 6
A21
A22 BLACK
B 1 2
4 5 6 1 2 3 4 5 6
7 8 9 1011121314151617
7 8 9 101112
7 8 9 101112
YELLOW
A
A B
1819 2021 22 23 2425 26 27 28
A23
A24
B1
B2
GRAY
BLACK
1 2 3 4
1
1 2 1
2 1
2
2 1
5 6 7 8
2
9 10 11 12
B3
B4
B5
BLACK
GRAY
BROWN
1 1 2
3 4
7 8
9 10 11 12
5 6
B6
1
3 5
2 1
B7 BLACK
2 2
2002 PRIUS (EWD464U)
1
2
3
4
3
K B8
B9
1 2 3 4 5 6 7 8 9 10 11 1213141516171819 20
B10
1 2 3 4 5 6 7 8 9 1 2
10 11 12 13 14 15 16 17 18
3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
B11
B12
BLACK
27 28
29 30 31
B13
B14
BLACK
BLACK
1 2 1 2
3 4 5 6 7
1 2 3 4 5 6
7 8 9
1 2 3 4 5
6 7
8 9 10 11 12 13 14 15 16
10 11 12 13 14 15 16 17 18 19
8 9 10 11 12 13 14 15
17 18 19 20 21
20 21 22
16 17
22 23 24
B15
23 24 25 26 27 28
B16
18 19 20 21 22
B17
B18
B19
BLACK
BROWN
1
2
3
4
1
3 5
1 2 3 4 5 6 7 8 9 10 11
1 2 3 4 5 6
12 13 14 15 16 17 18 19 20 21 22
7 8 9 10 11 12
1
2
B20
B21 1
1 2 3
B22
C1
C2
BLACK
BLACK
BLACK
1 2
1 2
2
3
1 2 3 4
5
6
C3
C4
C5
C6
YELLOW
GRAY
GRAY
BLACK
1 2 3 4
1
1
C8
2
C7
1 2
C10
1
C11
5 6 7 8 9 10
2
C12 BLACK
1 2 1 2 3 4 5 6 7 8 9 1011 1213141516171819 202122
1 2 3 4 5
1 2 3 4 5 6 7 8 9
6 7 8 9 10
10 11 12 131415 16 17 18
2002 PRIUS (EWD464U)
3 4
2
K CONNECTOR LIST C13
C14
D1 GRAY
2 1
2
3
4 5 6 7
8
1
1 2 3 4 5 6
9 10 1112131415 16 17
D2
D3
D4
D5
BLACK
BLACK
1 2 3
1 2
3 4 5 6 7 8 9 10 11 1 16 15 14 13 12 11 10 9
2 12 13 14 15 16 17 18 19 20
8 7 6 5 4 3 2 1
D6
D7
1
D8
1
D9
1
1
D10
D11
BLACK
BLACK
1
2
1 2 3 4
3 4 5 6
D12
D13
D14
E1
BLACK
BLACK
BLACK
DARK GRAY
1 2 3 4
1 2 3 4 5 6
1 2
E3
1 2 3 4 5 6
E4
E5
1 2
E6
E7
GRAY
1 2 3 4 5 6
E2
1
2
1
2
BLACK
1 2 3 4 5 6 7 8 9 10
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
2002 PRIUS (EWD464U)
27 28
29 30 31
K E8
E9
E10
F1
BLACK
BLACK
BLACK
YELLOW
1 1 2
3 4 5 6 7
1 2 3 4 5 6
7 8 9
1 2 3 4 5
6 7
8 9 10 11 12 13 14 15 16
10 11 12 13 14 15 16 17 18 19
8 9 10 11 12 13 14 15
17 18 19 20 21
20 21 22
16 17
22 23 24
23 24 25 26 27 28
2
18 19 20 21 22
F2
F3
F4
F5
F6
F7
YELLOW
GRAY
GRAY
BLACK
BLACK
GRAY
1 2
1 2
1 2
1 2
1
2
1
F8
F9
GRAY
GRAY
1
F10
F11
F12
(See Page 22)
(See Page 22)
(See Page 22)
1 2 3
2
4 5
F13
F14
F15
F16
BLACK
F17
F18
GRAY
1
1
1
2
2
BLACK
1
2
3
4
5
6
7
8
1
2 1
G1
H1
H2
H3
H4
GRAY
GRAY
GRAY
DARK GRAY
BLACK
1
1
2
1 2 3 4 5 6 7
3
2
1 3
1
2
3
4
8 9 10 11 12 13 14
H5
H6
BLACK
GRAY
1
2
3
4
5
6
1
2
3 4 5
H8
H7
H9 DARK GRAY
1 2 3 4 5
1 2 3 4 5
2002 PRIUS (EWD464U)
1
2
3
4
2
K CONNECTOR LIST H10
H11
H12
H13
BLACK
1 2 3 4 5
16 17
7 8 9
1 2 3 4 5 6
1 2
10 11 12 13 14 15 16 17 18 19
7 8 9 10 11 12
8 9 10 11 12 13 14 15 16
20 21 22
13 14 15
17 18 19 20 21
6 7
1 2 3 4 5 6
8 9 10 11 12 13 14 15 18 19 20 21 22
BLACK
23 24 25 26 27 28
H14
H15
16 17
H16
3 4 5 6 7
22 23 24
H17 1
1
2 1 1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
27 28
29 30 31
I1
I2
I3
I4
I5
BLACK
GRAY
BLACK
GRAY
BLACK
1 2 3 4
1 2 3 4
1 2 3 4
1 2
1 2 3 4
I6
I7
I8
I9
I10
GRAY
BLACK
GRAY
GRAY
GRAY
1 2
1 2
1 2 3 4 5 6
1 2 3 4
1 2
I11
I12
I13
GRAY
GRAY
ORANGE
1 2 3 4 5 6
1 2 3 4
1
5 6 7 8
I14
I15
ORANGE
1
5 6 7 8
I16
I17
J1
J2
J3
1
2
3
4
5
6
7
8
J4
BLACK
1 2
12
A A
A A
A
A
A B
A B
2002 PRIUS (EWD464U)
A B
A B
A A B B C C D D E E F F
K J5
A A B B C C
J6
J6
J7
(w/ Daytime Running Light)
(w/o Daytime Running Light)
BLUE
A A B C C A A B B B B C C
A B A A B B B
A A A A A A A A A A A A
D D E E F F
J8
J9
J10
GRAY
GRAY
BLACK
J11
A A A A A A A A A A
A A A A A A
B B B C C C
B B B C C C
J13
A A
J12
A A
A
A A B B C C
A
D D E E F F
J14
J15
BLACK
BLACK
A A B B C C
A A B B C C
A A B B C C
A A A B B B C C C C C
D D E E F F
D D D E E E
D D D E E E
D D D D E E E E E E E
J17
A A
J16
J18
J19
GRAY
GRAY
J20
A A A A A A
A A A A A A
A A A B B B C C C C C
B B B C C C
B B B C C C
D D D D E E E E E E E
A A
A
A
J21
J22
J23
J24
BLACK
BLACK
GRAY
A A A B B B C C C C C
A A B B C C
A A B B C C
A A A A A A
D D D D E E E E E E E
D D D E E E
D D D E E E
B B B C C C
J25
J26
J27
GRAY
BLUE
A A A A A A
A A A B B B B C C C C
A A B B C C C D D E E
B B B C C C
D D D E E E E F F F F
F F F F G G G H H H H
2002 PRIUS (EWD464U)
K CONNECTOR LIST J28
J29
J30
J31
BLUE
BLACK
BLACK
BLACK
A A B B C C C D D E E
A A B B C C
A A B B C C
F F F F G G G H H H H
D D D E E E
D D D E E E
A A A A
L1
J32
J33
K1
GRAY
GRAY
DARK GRAY
A A A A A A
A A A A A A
B B B C C C
B B B C C C
1
1
L3
L4
1
2
2
3 4 5 6
L5
L6
M1
GRAY 1
L2 GRAY
BLACK
2
1
1 2
2
1
1 2 3 4 5
M2
M3
M4
GRAY
GRAY
GRAY
1 2 3 4 5 6
1 2 3
1
2
3
4
5
6
7
8
9 10
1 2 3 4 5 6 7 8 9 10 11 12 13 14
M6
M7
N1
BLUE
BLUE
GRAY
12 3 456 7 8 1 2 3 4 5
1 2
6 7 8 9 10
N4
M5
O1
P1
N2
N3
1 2 3 4 5 6 7 8 9
1 2 3 4 5
10 11 12 13 14 15 16 17 18
6 7 8 9 10
P2
P3
P4
BLACK 1 1 2 1
1
P5
3
4 5 6 7 8 9
P6
1
P7
P8
GRAY
1 2
1
2
3 4 5 6
1
2
3 4 5 6
1
2
3 4 5 6
2002 PRIUS (EWD464U)
2
1
2
3
4
K P9
P10
BLUE
BLACK
P11
P12
P13
1 2
1 2
1 2
1 2 1 2 3 4
8
5 6 7
3 4
9 10 11 12 13 14 15 16 17 18 19 20
P14 YELLOW
5 6
P15
R1
YELLOW
BLACK
R2
1 2
1 1
2
2
R5
1 2 3 4 5 6 7 8 9 101112 1 2 3 4 5 6 7 8 9 10
R10
1 2
3 4 5 6
1 2
R4
R3
R11
R6
R7
1 2
1 2
3 4 5 6
S1
3 4
5 6 7 8 9 10
R8
R9
3 4
1
1
5 6
2
2
S2
S3
S4
GRAY
2 1
2 1
4 3
4 3
6 5
6 5
YELLOW 1 2 3 4 5 6
1 2 3 4
S5
S6
S7
YELLOW
YELLOW
YELLOW
1 3
S8
1 2 3 4
2 4
S9 1
1 2 3 4
1 2
S10
1 2 3 4 5 6 7
1 2
S11
S12
T1
T2
BLACK
BLACK
1 1
1
1 1 2
T3
T4
T5
BLACK
1234
T6
U1
BLACK
1 2
3 4
12 3 456 78
5 6 7 8 9 10 11 12
2002 PRIUS (EWD464U)
12
1 2 3 4
K CONNECTOR LIST V1
V2
V3
V4
V5
BLACK
BLUE
BROWN
BLACK
BLACK
1 2 3
1
1 2 3 2
1
2
1
V6
W1
W2
W3
W4
BLUE
BLACK
BLACK
GRAY
DARK GRAY
1
1 2 3
2
1 2
1
2002 PRIUS (EWD464U)
2
1 2
2
W5
1 2 3 4 5
MEMO
2002 PRIUS (EWD464U)
L PART NUMBER OF CONNECTORS Code
Part Name
Part Number
Code
Part Name
Part Number
B20
Buckle SW and Tension Reducer LH
B21
Buckle SW RH and Seat Belt Warning Occupant Detection Sensor
90980–11471
B22
Battery Input Relay
90980–12199
C1
Camshaft Position Sensor
90980–10947
C2
Camshaft Timing Oil Control Valve
90980–11162
90980–11070
C3
Circuit Breaker Sensor
90980–11898
A1
A/C Condenser Fan Motor
90980–11237
A2
A/C Magnetic Clutch and Lock Sensor
90980–10942
A3
A/C Triple Pressure SW (A/C Dual and Single Pressure SW)
90980–10943
A4
ABS Speed Sensor Front LH
A5
ABS Speed Sensor Front RH
A6
Ambient Temp. Sensor
A7
A/C Amplifier
90980–11911
C4
Converter
90980–10942
A8
A/C Amplifier
90980–11913
C5
Converter
90980–11963
90980–11927
C6
Crankshaft Position Sensor
90980–12028
C7
Center Cluster SW
90980–10801
C8
Cigarette Lighter
90980–10760
90980–11003
A9
A/C Amplifier
A10
A/C Room Temp. Sensor
A11
A/C Solar Sensor
A12
A/C Thermistor
C10
Combination Meter
90980–11927
A13
Accel Position Sensor
90980–11144
C11
Combination Meter
90980–11923
A14
Air Inlet Control Servo Motor
90980–11921
C12
Combination SW
90980–11594
A15
Air Mix Control Servo Motor
C13
Combination SW
90980–11672
A16
Air Vent Mode Control Servo Motor
C14
Combination SW
90980–11616
A17
Airbag Sensor Assembly
90980–11869
D1
DC Motor
90980–10838
A18
Airbag Sensor Assembly
90980–11872
D2
Data Link Connector 3
90980–11665
A19
Airbag Sensor Assembly
90980–11867
D3
Daytime Running Light Relay
90980–12034
A20
Airbag Squib (Front Passenger Airbag Assembly)
90980–11884
D4
Diode (Door Courtesy)
90980–11251
D5
Diode (Daytime Running Light)
90980–10962
A21
Airbag Squib (Steering Wheel Pad)
90980–10850
D6
Door Courtesy SW Front LH
A22
Ashtray Illumination
90980–12111
D7
Door Courtesy SW Front RH
A23
ABS Speed Sensor Rear LH
D8
Door Courtesy SW Rear LH
90980–11919
90980–11909
90980–11060
A24
ABS Speed Sensor Rear RH
B1
Brake Actuator
90980–11087
B2
Brake Actuator
90980–11161
B3
Brake Actuator
90980–11698
B4
Brake Fluid Level Warning SW
90980–11207
B5
Back–Up Light Relay
82660–20340
B6
Blower Motor
90980–10214
B7
Blower Motor Linear Controller
90980–11676
B8
Body ECU
90980–11971
B9
Body ECU
90980–11973
B10
Brake ECU
B11
90980–10871
D9
Door Courtesy SW Rear RH
D10
Door Lock Control SW Front RH
D11
Door Lock Motor and Door Unlock Detection SW Rear LH
D12
Door Lock Motor and Door Unlock Detection SW Rear RH
D13
Door Lock Motor, Door Key Lock and Unlock SW and Door Unlock Detection SW Front LH
D14
Door Lock Motor, Door Key Lock and Unlock SW and Door Unlock Detection SW Front RH
90980–11935
E1
Engine Coolant Temp. Sensor
Brake ECU
90980–11476
E2
Engine Hood Courtesy SW
90980–11189
B12
Brake ECU
90980–11637
E3
EMPS ECU
90980–12012
B13
Brake ECU
90980–11638
E4
EMPS ECU
90980–11579
B14
Brake Warning Buzzer
90980–10906
E5
EMPS ECU
90980–12120
B15
Battery Blower Motor
82824–47130
E6
EMPS ECU
90980–11923
B16
Battery Blower Motor Controller
90980–11676
E7
Engine Control Module
90980–11421
B17
Battery ECU
90980–11392
E8
Engine Control Module
90980–11476
B18
Battery ECU
90980–11424
E9
Engine Control Module
90980–11637
B19
Battery Fan Relay
82660–20340
Note: Not all of the above part numbers of the connector are established for the supply.
2002 PRIUS (EWD464U)
90980–10797
90980–11150
90980–11858
90980–10737
L Code
Part Name
E10
Engine Control Module
F1
Front Airbag Sensor LH
F2
Front Airbag Sensor RH
F3
Front Parking Light LH
F4
Front Parking Light RH
Part Number
Code
90980–11638
I10
Inverter
90980–10891
I11
Inverter
90980–10988
I12
Inverter
90980–10897
I13
Inverter
90980–11943
I14
Inverter
90980–11944
I15
Ignition SW
90980–11615
I16
Interior Light
90980–10860
I17
Interlock SW
90980–11918
J1
Junction Connector
90980–10976
J2
Junction Connector
J3
Junction Connector
J4
Junction Connector
J5
Junction Connector
90980–11856
90980–11162
F5
Front Side Marker Light LH
F6
Front Side Marker Light RH
F7
Front Turn Signal Light LH
F8
Front Turn Signal Light RH
F9
Front Wiper Motor
F10
Fusible Link Block No.1
F11
Fusible Link Block No.1
F12
Fusible Link Block No.1
F13
Fusible Link Block No.1
F14
Front Door Speaker LH
F15
Front Door Speaker RH
F16
Fuel Pump and Fuel Sender
82824–47160
F17
Fusible Link Block No.2
90980–10916
F18
Fusible Link Block No.2
90980–11775
G1
Gateway ECU
90980–11911
H1
Headlight LH
H2
Headlight RH
H3
Heated Oxygen Sensor (Bank 1 Sensor1)
90980–11028
H4
Horn
90980–10619
H5
Hydraulic Booster
90980–10939
H6
Hydraulic Booster
90980–10946
H7
Hazard Warning SW
90980–11319
H8
Hazard Warning SW
90980–11921
H9
Heated Oxygen Sensor (Bank 1 Sensor 2)
90980–11028
H10
Hybrid Vehicle Control ECU
90980–11638
H11
Hybrid Vehicle Control ECU
90980–11637
H12
Hybrid Vehicle Control ECU
90980–11586
H13
Hybrid Vehicle Control ECU
90980–11476
H14
Hybrid Vehicle Control ECU
90980–11421
H15
High Mounted Stop Light
90980–11060
H16
Hybrid Vehicle Battery
H17
Hybrid Vehicle Battery
I1
Ignition Coil and Igniter No.1
I2
Ignition Coil and Igniter No.2
I3
Ignition Coil and Igniter No.3
I4
Ignition Coil and Igniter No.4
I5
Injector No.1
I6
Injector No.2
I7
Injector No.3
I8
Injector No.4
I9
Inverter
90980–11019 90980–11599
–
90980–11775 90980–10935
90980–11314
–
90980–11885
90980–11875
Part Name
Part Number
90980–11742
90980–11661
Junction Connector (w/ Daytime Running Light)
90980–11542
Junction Connector (w/o Daytime Running Light)
90980–11529
J7
Junction Connector
90980–10803
J8
Junction Connector
J9
Junction Connector
J10
Junction Connector
90980–11398 90980–10976
J6
90980–11661
J11
Junction Connector
J12
Junction Connector
J13
Junction Connector
J14
Junction Connector
J15
Junction Connector
J16
Junction Connector
90980–11915
J17
Junction Connector
90980–10976
J18
Junction Connector
J19
Junction Connector
J20
Junction Connector
J21
Junction Connector
J22
Junction Connector
J23
Junction Connector
J24
Junction Connector
J25
Junction Connector
J26
Junction Connector
J27
Junction Connector
J28
Junction Connector
J29
Junction Connector
J30
Junction Connector
J31
Junction Connector
J32
Junction Connector
J33
Junction Connector
K1
Knock Sensor
90980–11166
L1
Light Control Rheostat
90980–10797
90980–11034
2002 PRIUS (EWD464U)
90980–11661
90980–11661
90980–11915
90980–11661
90980–11915
90980–11398
90980–11661
L PART NUMBER OF CONNECTORS Code
Part Name
L2
License Plate Light LH
L3
License Plate Light RH
L4
Luggage Compartment Door Unlock SW
L5
Luggage Compartment Light
L6
Part Number
Code
Part Name
Part Number
S4
Side Airbag Sensor LH
S5
Side Airbag Sensor RH
90980–11212
S6
Side Airbag Squib LH
90980–11148
S7
Side Airbag Squib RH
Luggage Compartment Light SW
90980–11097
S8
System Main Relay
M1
Mass Air Flow Meter
90980–11317
S9
System Main Relay
M2
Motor Generator No.1
90980–11658
S10
System Main Relay
M3
Motor Generator No.2
90980–11034
S11
System Main Relay
M4
Motor Generator No.2
90980–11143
S12
System Main Relay
M5
Multi Display
90980–11911
T1
Theft Deterrent Horn
M6
Multi Display
90980–11923
T2
Throttle Control Motor
90980–11162
M7
Multi Display
90980–10799
T3
Throttle Position Sensor
90980–10711
N1
Noise Filter (Ignition)
90980–10843
T4
Transponder Key Computer
90980–11475
N2
Navigation ECU
90980–11973
T5
Turn Signal Flasher Relay
90980–10799
N3
Navigation ECU
90980–11923
T6
Tension Reducer Solenoid
90980–11918
U1
Unlock Warning SW and Key Interlock Solenoid
90980–10795
V1
Vacuum Sensor (HC Adsorber and Catalyst System)
90980–10845
V2
VSV (EVAP)
90980–11156
V3
VSV (HC Adsorber and Catalyst System)
90980–11149
V4
Vapor Pressure Sensor
90980–11143
V5
VSV (Canister Closed Valve)
90980–11156
V6
VSV (Parge Flow Switching Valve)
90980–11859
W1
Washer Motor
90980–10981
W2
Water Pump Motor (A/C)
90980–10887
W3
Water Pump Motor (Inverter)
90980–11003
W4
Water Temp. SW
90980–11235
W5
Wireless Door Control Receiver
90980–11909
90980–11148
N4
Noise Filter (Rear Window Defogger)
90980–11259
O1
Oil Pressure SW
90980–11363
P1
Park/Neutral Position SW
90980–11535
P2
Parking Brake SW
90980–11147
P3
PTC Heater
90980–10903
P4
PTC Heater
90980–10867
P5
Personal Light
90980–11212
P6
Power Window Control SW Front RH
P7
Power Window Control SW Rear LH
P8
Power Window Control SW Rear RH
P9
Power Window Master SW
90980–11469
P10
Power Window Motor Front LH
90980–11011
P11
Power Window Motor Front RH
P12
Power Window Motor Rear LH
P13
Power Window Motor Rear RH
P14
Pretensioner LH
90980–11884
P15
Pretensioner RH
90980–11862
R1
Radiator Fan Motor
90980–11237
R2
Radio and Player
90980–10996
R3
Radio and Player
90980–10997
R4
Radio and Player
90980–10803
R5
Remote Control Mirror SW
90980–11657
R6
Rear Combination Light LH
R7
Rear Combination Light RH
R8
Rear Speaker LH
R9
Rear Speaker RH
R10
Remote Control Mirror LH
R11
Remote Control Mirror RH
S1
Steering Shaft Torque Sensor
90980–10942
S2
Shift Lock ECU
90980–11488
S3
Stop Light SW
90980–11118
90980–10797
90980–10860
90980–11011
90980–10935
90980–11587
Note: Not all of the above part numbers of the connector are established for the supply.
2002 PRIUS (EWD464U)
90980–11857
90980–11864 90980–11529 82675–36050
– 90980–10619
L Code
Part Name
Part Number
Code
2002 PRIUS (EWD464U)
Part Name
Part Number
M OVERALL ELECTRICAL WIRING DIAGRAM
2002 PRIUS (EWD464U)
[A] : System Title [B] : Indicates the wiring color. Wire colors are indicated by an alphabetical code. B
= Black
W = White
BR = Brown
L
= Blue
V
SB = Sky Blue
= Violet
R = Red
O = Orange LG = Light Green
P
Y
= Pink
= Yellow
[F] : Junction Block (The number in the circle is the J/B No. and the connector code is shown beside it). Junction Blocks are shaded to clearly separate them from other parts. Example:
GR = Gray
G = Green The first letter indicates the basic wire color and the second letter indicates the color of the stripe. Example:
,,,, ,,,, 3C indicates ,,,, that it is inside ,,,, Junction Block ,,,, ,,,,No.3 ,,,,
L–Y
[G] : Indicates related system.
2002 PRIUS (EWD464U)
L (Blue)
[H] : Indicates the wiring harness and wiring harness connector. The wiring harness with male terminal is shown with arrows ( ). Outside numerals are pin numbers.
Y (Yellow)
[C] : The position of the parts is the same as shown in the wiring diagram and wire routing. [D] : Indicates the pin number of the connector. The numbering system is different for female and male connectors. Example : Numbered in order from upper left to lower right
Numbered in order from upper right to lower left
Female
[I]
Male (
)
: ( ) is used to indicate different wiring and connector, etc. when the vehicle model, engine type, or specification is different.
[J] : Indicates a shielded cable. Female
Male
The numbering system for the overall wiring diagram is the same as above [E] : Indicates a Relay Block. No shading is used and only the Relay Block No. is shown to distinguish it from the J/B. Example :
[K] : Indicates and located on ground point. [L] : The same code occuring on the next page indicates that the wire harness is continuous.
Indicates Relay Block No.1
M
SYSTEMS
LOCATION
SYSTEMS
LOCATION
2002 PRIUS (EWD464U)
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19–3
Navigation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14–5
Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24–2
Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1~24–1
Back–Up Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–2
Power Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18–2
Cigarette Lighter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11–4
Radiator Fan and Condenser Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22–3
Combination Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23–2
Radio and Player . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14–2
Door Lock Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15–2
Rear Window Defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22–2
Electric Tension Reducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13–4
Remote Control Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11–2
EMPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20–3
Seat Belt Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9–4
Engine Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3
Shift Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13–3
Gateway System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14–8
SRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21–2
Headlight (w/ Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2
Stop Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–4
Headlight (w/o Daytime Running Light) . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
Taillight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–2
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–2
Theft Deterrent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17–2
Hybrid Vehicle Immobiliser System . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–16
TOYOTA Hybrid System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–2
∗ Charging ∗ Cruise Control ∗ Regenerative Brake
Interior Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–3 Turn Signal and Hazard Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2 Key Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9–2 Wiper and Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–3 Light Auto Turn Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9–3 Wireless Door Lock Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16–2 Light Reminder Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9–2
M OVERALL ELECTRICAL WIRING DIAGRAM
SYSTEM INDEX
(Cont. next page)
1 PRIUS ELECTRICAL WIRING DIAGRAM
P ow er S ource
T O Y O TA H y brid S ys tem
1
3
2
B–R
4
B–R
G–Y
G–Y
L–R
L–R
W–G
W
A B C D
L–Y W–G
ACC 2 AM1
IG1 4
B–Y
ST1
B–W
W–B W–B
7 AM2
W–R
IG2 6
B–W
ST2 8
R–W
B–W R–W
2 2C
6 2D
3 2B
5 2A 22 A
14 IK1
MPX–
GR MPX2
CRUISE
CHARGE
OUTPUT CONTROL
13
MPX1 GR–L
5
11 MPD2
2
MPD1
3
G1 GATEWAY ECU
4 GR–B
5 2B 14 A 8 2D
C10 A , C11 B
3 B
4
COMBINATION METER
MP2+ GR
8 2K
L
1 2H
W–B
W–B
W
B–W
E10 ENGINE CONTROL MODULE
14
IG1 RELAY
11 2G
B8 BODY ECU
16
2 B
10A GAUGE
5A AM1
1
MPX+
7 2A
A7 A/C AMPLIFIER
11 GR
W F17 A , F18 B
21 A
W
W–B
1
W–B
3 1J
B–W W3 WATER PUMP MOTOR (Inverter) B–W
1 A
3 1K
B–W
1 B
2
2
W–B
1 B
120A MAIN
3
W–B
B–G
B–R
100A DC/DC
F10 A , F11 B , F12 C , F13 D
1 D
FUSIBLE LINK BLOCK NO. 1
1 C
5A DC/DC–S
IG2 RELAY
B
B
1
1 1A
2 1B
1 1B
2 A
15A DOME
15A AM2
20A HV
10A BATT FAN
5
MPX+
GR–B
2 1A
7 1J
4 2A L
9 1J
15
W–G
8 1J
B–Y
W–R
L–R
G–Y
2002 PRIUS (EWD464U)
11 1F
H
L B–W
L–Y
1 2G
F G
GR–B
2 2G I15 IGNITION SW
E
6 2B
W BR
FUSIBLE LINK BLOCK NO. 2
A BATTERY
W–B
J11 JUNCTION CONNECTOR
W–B ID
Cowl side panel LH
IH
I J
Right kick panel
M
I
B B
C A C14 CRUISE CONTROL SW [COMB. SW] W–B
B–W
2002 PRIUS (EWD464U) W–B IG
Cowl side panel RH
A
Y
J17 JUNCTION CONNECTOR
W–B
G
A
P
5 N
D
6
1
7
E
B
R
4
9
SFT
8
JUNCTION CONNECTOR
J24 A , J25 B
VSFT
3
A A
GSFT
A A
A B
E A
D B
E
E
W–B
W–B
W–B
W
B–R
W–B
J22 A , J23 B
A
L W–B
L
B A
B
P1 PARK/NEUTRAL POSITION SW
2
L–R
A13 ACCEL POSITION SENSOR
1
L–W
EP2
L–B
A A
2
LG–R
A A
4
R–B
C B
3
W
EP1 VCP2 VPA2
B
W–B
C B
5
(*1)
JUNCTION CONNECTOR
ECC
6
R
VCP1 VPA1
E A
L–R
G–Y
EOM 5 E
* 1 : Shielded
JUNCTION CONNECTOR
A B
4 W–B
CCS
VSFT SFT GSFT 12 E 11 E 21 E
8
W–B
J18 A , J19 B
S3 STOP LIGHT SW B–W CANCEL
SET/COAST
RES/ACC
W–B From Stop Light SW <3–4>
6 ID1
3
CRUISE
W–B
5
W–B
GND1 31 D
HYBRID VEHICLE CONTROL ECU VCP1 VPA1 EP1 VCP2 VPA2 EP2 P N D B R 13 D 14 D 12 D 23 D 15 D 22 D 15 E 13 E 23 E 22 E 14 E
H10 C , H11 A , H12 B , H13 E , H14 D
7
J21 JUNCTION CONNECTOR
W–B
C A
4
GND2 STP 24 D 1 D G–W
CCS 16 D
6
T O Y O T A H ybrid S y stem
B
A
(Cont. next page)
W–B H
G
F
E
D
C
W–B
J
W–B
R–W
IGSW 7 E
B–W
H
ST2 6 E
ST1– 2 D
B–Y
B–W
W–B
W–B
W
L–R
G–Y
5
R–W
G
F
E
D
C
B
A
B–R
1 PRIUS (Cont’ d)
M OVERALL ELECTRICAL WIRING DIAGRAM
W–B
W–B
W–B
(*1)
R
W
W–B
W–B
B–W
JUNCTION CONNECTOR
J24 A , J25 B
1 PRIUS (Cont’ d)
(Cont. next page)
T O Y O T A H ybrid S y stem
9 A B
* 1 : Shielded
11
10
12
G–Y
G–Y
L–R
L–R
A B
H10 C , H11 A , H12 B , H13 E , H14 D ETH+ ETH– 28 D 27 D
HTE+ HTE– 19 D 29 D
ESTP SPDO GO 8 D 6 D 10 B
GSNG 11 C
GSN 4 C
GRF 10 C
GRFG 17 C
HYBRID VEHICLE CONTROL ECU GCS GCSG GMTG GMT MSNG MSN 5 C 12 C 8 C 1 C 20 C 13 C
MCSG MRF 21 C 19 C
MRFG 18 C
MMTG 9 C
MMT 2 C
(*1)
L
P
(*1)
G
O
R–Y
BR
Y
(*1)
(*1)
(*1)
W–B
GR
R–W
W
B
L
(*1)
P
R
G
B–R
G–W
BR
Y
W
B
R
(*1)
G
(*1)
(*1)
(*1)
B
(*1) B
2 A GSN
1 A GRF
6 A GRFG
3 A GCS
8 A
9 A
GCSG
GMTG
4 A GMT
5 B MSNG
2 B MSN
3 B
6 B
MCS
MCSG
1 B MRF
4 B
3 C
MRFG
MMTG
A
A
A
A
A
(*1)
M3 B , M4 C MOTOR GENERATOR NO. 2
(*1)
M2 A MOTOR GENERATOR NO. 1
A
A W–B
W–B
W–B
H
F
MMT
W W–B
B–R W
G
E
1 C
J7 JUNCTION CONNECTOR
W–B
F
B–R
GSNG
(*1)
C B
7 A
(*1)
C B
W–B
B A
W–B
B A
W–B
E
W–B
W–B
W–B
W–B J8 A , J9 B
W–B
JUNCTION CONNECTOR
B A
(*1)
(*1)
(*1)
D
D
(*1)
(*1) W–B
J18 JUNCTION CONNECTOR
C
C
(*1)
(*1)
2002 PRIUS (EWD464U)
To Engine Control Module <2–13><2–14>
B
MCS 14 C
G H
W–B W–B W–B
J1 JUNCTION CONNECTOR Cowl side panel LH
I
A
IE
M
2002 PRIUS (EWD464U)
W
B–R
W–B
W–G
Y To A/C Amplifier <24–6>
Y
I
L–O W–B
14 IE1
B
GND 6 B
W 3 C
4 C
G
M–IVA M–IVB M–IWB
VB
5 C
Y
AMD IDH 1 B 2 A
(*1) 1 C
1 B
3 B
2 B
4 A
5 A
G–IWB G–IWA G–SDOWN G–INVT
4 B
2 A
INVERTER
1 A
6 A
W–G
G–WU G–VU G–UU G–GINV
3 A
I 9 D , I10 C , I11 A , I12 B , I13 E , I14 F
M–IWA G–IVA G–IVB
2 C
R
W
B 6 D
B
H
W 2 D
W
B–R
R 1 D
G
G
G 3 D
(*1)
2 IH1
L 5 D
G
S 3 A
4 D
W
CONVERTER
7 C
R
IGCT M–SINV M–SDOWN M–INVT M–WU M–UU M–VU M–GINV
1 IH1
M–FINV
8 C
(*1)
C4 A , C5 B
W–G
5 B
G–SINV
7 B
GSIV 15 A
MFIV 14 A
GWU GVU GUU GIVG 3 A 2 A 1 A 27 A
GFIV 24 A
8 B G–FINV
ILK 4 E
4 IH1
2
1
10 IF1
16
B
NODD
W–G
4 A
G
W–G
L–R
G–Y
1 E
CEI
1 F
W–R
O(*2)
O(*2)
I17 INTERLOCK SW
CVRSW CBI
6 C
V–R
IGCT
R
1 A
Y
(*1)
(*1)
V–R
F
GSDN 12 A
B
(*1)
W–G
GIT 23 A
L
GIWB GIWA 18 A 28 A
B
(*1)
MIT MWU MUU MVU MIVG 11 A 6 A 4 A 5 A 26 A
15
* 1 : Shielded * 2 : High Voltage(273. 6V)
O
E
W–G
W–G
W–G
(*1)
MSDN 13 A
Y
MSIV 21 A
H10 C , H11 A , H12 B , H13 E , H14 D HYBRID VEHICLE CONTROL ECU MIVA MIVB MIWB VB MIWA GIVA GIVB 16 A 7 A 17 A 20 A 25 A 19 A 8 A
14
G
D
W–G
13 IA1
+B2 5 D
W–G
12 IA1
NODD 4 B
L–O
+B1 4 D
L–R
G–Y
13
T O Y O T A H ybrid S y stem
F
E
D
C
B
A
(Cont. next page)
O
C
B
A
1 PRIUS (Cont’ d)
M OVERALL ELECTRICAL WIRING DIAGRAM
W–G
1 PRIUS (Cont’ d)
(Cont. next page)
T O Y O T A H ybrid S y stem
17 A B
* 1 : Shielded * 2 : High Voltage(273. 6V)
19
18
20
G–Y
G–Y
L–R
L–R
A B
H10 C , H11 A , H12 B , H13 E , H14 D WFSE 9 D
TC 10 D
HAO 9 E
HAI 10 E
CON1 13 B
CON2 2 B
CON3 1 E
GB 26 D
IB 25 D
SPDI 8 B
BTH+ 18 D
BTH– 17 D
ABFS 3 E
FCVC 7 D
L
B–W
From Airbag Sensor Assembly<21–3>
From Transponder Key Computer<2–16>
R
G
2 IF2
4 IF2
3 IF2
6 IB1
B–L
R–W
G
5 A
From Brake ECU <19–9>
To Combination Meter <23–2>
10 IB1
(*1)
R
B
4 A
V
LG
1 IF2
W
3 A
W–G
C
V–W
5 IF2 2
B–L
1
R–W
G
(*1)
R
B
W
1 B
HTB– 30 D
19 IE1
O(*2) 1 C
HTB+ 20 D
V–W
G–R
P
GR
V
2002 PRIUS (EWD464U)
To Data Link Connector 3 <2–5><2–6> O(*2)
BR–B
11 IF1 C3 CIRCUIT BREAKER SENSOR
9 IH1
P
GR
V
P 8 IH1
E
AS1 15 B
W–G
10 ID1
D
AS1G 14 B
Y–R
Y
W–L
P–B
P
C
SIL 21 D
HYBRID VEHICLE CONTROL ECU HTD+ HTD– DTH+ DTH– 20 E 19 E 18 E 2 E
S 8 A , S 9 B , S10 C , S11 D , S12 E SYSTEM MAIN RELAY 1 A
7 A
2 A
6 A
1 D
L
1 E O(*2)
O(*2)
O(*2)
O(*2)
W–B
W–B
W–B
F G
2
W–B
W–B
F
D E
To Data Link Connector 3 <2–6>
B22 BATTERY INPUT RELAY
W–R
C A
C A
C A
W–B
1
3
5
6
3 IF1
J32 A , J33 B GR
16 A IB01
5 A CCTL
10 A EQCO
9 A EQTR
3 A SW1
W
Y–B
19 A BTH–
V–W
G
18 A BTH+
Y
R
7 A HTB–
B–L
B
6 A HTB+
R–W
W
2 A IGCT
B B W–B
W–B
W–B
W–R
Y–R
Y–B
Y
JUNCTION CONNECTOR B B
4
W
W–B
BJ
22 A GND
Right side of rear pillar
4 B IB
10 B V–
3 B V+
17 A GB
8 A SIL
B17 A , B18 B BATTERY ECU
M
2002 PRIUS (EWD464U)
F
G
2
4
5
6
7
8
9
W
G–W R
L–R
G
Y
L
P
L–O
O
V–Y
HYBRID VEHICLE BATTERY
H16 A , H17 B 24
2
3
4
5
6
7
8
9
10
G
R
W
R
W B
B L
L
L–B
P–L
LG–R
L–W
Y–B
LG
LG–B
GR
GR–B
8 B 2 B FCTL1 VM
B A
B A
W–B BI
J32 A
EC
JUNCTION CONNECTOR
Engine compartment left
W–B
W–B
Left side of rear pillar
9 B SI
B16 BATTERY BLOWER MOTOR CONTROLLER
2
1
5
3
A
IE
A
A
A
Cowl side panel LH
J1 JUNCTION CONNECTOR
J7 JUNCTION CONNECTOR
B19 BATTERY FAN RELAY
W–B
BATTERY ECU
1 A AM
1
4
L
LG–R
7 IH1
L
B17 A , B18 B
TB1 GB1 TB2 GB2 TB3 GB3 TB4 GB4 TB5 GB5
1
J2 A , J3 B
11
G
23
G–Y
10
G–Y
22
LG–R
21
L–B
20
L–R
18
2
3
W–B
17
W–B
G–Y
B15 M BATTERY BLOWER MOTOR 2
1
L–B
16
2
L
3
2
L
L–B
15
2
5 IH1
5
1
2
24 * 2 : High Voltage(273. 6V)
W–B
VBB1 VBB3 VBB5 VBB7 VBB9 VBB11 VBB13 VBB15 VBB17 VBB19 VBB2 VBB4 VBB6 VBB8 VBB10 VBB12 VBB14 VBB16 VBB18 GBB19
14
BUSBER MODULE
SENSOR
B A
3
2
G–Y
BUSBER MODULE
HYBRID VEHICLE BATTERY
O (*2)
1 B
JUNCTION CONNECTOR
HYBRID VEHICLE BATTERY
O (*2)
SERVICE PLUG
O (*2)
1 A
W–B
O(*2)
B A
B B
G–Y
O(*2)
G–Y 4 IA1
MREL 7 B
23
IGCT RELAY
E
BATT 3 D
W–G
L
HYBRID VEHICLE CONTROL ECU
H10 C , H11 A , H12 B , H13 E , H14 D
22
O
D
W–G
L–R
G–Y
21
T O Y O T A H ybrid S y stem
L–R
C
B
A
1 PRIUS (Cont’ d)
M OVERALL ELECTRICAL WIRING DIAGRAM
L–R
G–Y
MEMO
2002 PRIUS (EWD464U)
2 PRIUS
W–L
R–G
W–B
5A AM1
W
7. 5A OBDII
7. 5A ECU–B
2002 PRIUS (EWD464U)
W–B
B–G
120A MAIN Near the fuel tank
W–B
10A GAUGE IE
W–B
W–B
W–B
Cowl side panel LH
Cowl side panel RH
J17 JUNCTION CONNECTOR
IG
W–B
BL
J1 JUNCTION CONNECTOR
A
7
A B B
22 A
14 A
6 2B
7 2A
IH
BR
ID
L J11 JUNCTION CONNECTOR
W–B A
W–B M
3
G–R
19 IA1
R–W
8 BC1
F16 FUEL PUMP
B C A
3 1A 4 1A
Right kick panel
4
MP2+
MPX+
11
3 B
2 B
A7 A/C AMPLIFIER
Cowl side panel LH
A
IG2 RELAY J7 JUNCTION CONNECTOR
G–R C A
13 1F
B
A
A
B
10 1A
4 B
L
J18 JUNCTION CONNECTOR
14 IA1
4 IA2
2
1
GR
A
A
W–B
1 1F
3
5
15
MPX+
MPX–
16
COMBINATION METER
BATTERY
F18 FUSIBLE LINK BLOCK NO. 2
12 1F
1
G–R
B–R
1
5
EFI RELAY
1 D
3 1K
2
2
B–R
F11 B , F12 C , F13 D
2 1B
3
3
4
G–R
GR
GR
B–W
B–W
B
W–L
R–G
W–B
B
B
GR–B
G–R
G–R
R–W
C10 A , C11 B
FUSIBLE LINK BLOCK NO. 1
IG1 RELAY
100A DC/DC
1 C
5 2A
15A THRO
1
2 1A
GR
CIR OPN RELAY
8 2D
15A EFI
5
3 1J
B–W
B–W
G–R
B
5
15A AM2
11 2G
D
J26 JUNCTION CONNECTOR
W–L
D
GR–B
8 2K
2
3
5 2B
3
B8 BODY ECU
1 B
W–G
1 2H
B–Y
1
W–R 9 1J
8 1A
B–W
B–W
6 2D
I15 IGNITION SW
IG2 6 ST2
B–Y
3 2B
1 2G
7 AM2
ST1
IG1 4
B–W
9 2D
2 2C
W–R
2 AM1
ACC
2
E ngine C ontrol
GR
5 2C
1
P ow er S ource
O
N
M
L
K
J
I
H
G
F
E
D
C
B
A
(Cont. next page)
M OVERALL ELECTRICAL WIRING DIAGRAM
MALFUNCTION INDICATOR LAMP L
B
JUNCTION CONNECTOR
J4 A , J5 B
W–B
2 PRIUS (Cont’ d)
(Cont. next page)
E ngine C ontrol A B C D E F G
5
R–G
* 1 : Shielded
7
6
8
B–R
B
B
B–W
B–W
B–W
B–W
B–W
B–W
B–W
B–W
A B C D E
GR GR W–B
W–B
W–B
W–B B–W
W–B
B–W
W–B
B–W
W–B
G–R
B–W
H
R–G
W–L
P–B
3
2
7
25 A
IGT1
12 A
IGF
BATT 3 B
FC 9 B
MREL 25 C
MPX1 14 D
+B 4 B
EVP1
22 B
THW
MOPS
14 B
12 B
5
2
2
MPD1
1
B
B
BR
4
1
O1 OIL PRESSURE SW
MPD2
Y–B
M1 MASS AIR FLOW METER
E1 ENGINE COOLANT TEMP. SENSOR
1
W
2
(*1)
B
B
3
BR
GR–B
R
GR–B
4
B
From EMPS ECU<20–4>
EVG 19 B
G
R–B
GR–G
G1 GATEWAY ECU
B
From Brake ECU<19–12>
VG 10 B
V2 VSV(EVAP)
B
11
14 ID2
GR–G
IGT4
ENGINE CONTROL MODULE
R–L
B
GR–L
G–R
G–R
R–W
1
B
2
14 A
IGT3
THA
29 A
G–R B
13 A
IGT2
E 7 A , E 8 B , E 9 C , E10 D
3
Y
MPX2
G
+BM
4
B–R
W
6 A 13 D 11 A
B–R
Y–G
W
GR
6 D
TC
GR
G–R
6 C
2
B–R
From Airbag Sensor Assembly<21–3>
BR
M
P–B
W
W
BR
W–B
Y
P
L
W–L
SIL
C
G–R
J16 JUNCTION CONNECTOR
K
GR–G
I J
From Battery ECU<1–20>
From Hybrid Vehicle Control ECU<1–17>
E
8 C
3 ID1
R–W
P–B
C B
C
From EMPS ECU <20–4>
C B
E
W–L
5
P–B
4
C
From Brake ECU <19–11>
12
SG
E
W–L
15
CG
From Hybrid Vehicle Control ECU<1–17>
8
OP2
C
P–B
WFSE
Y–R
GR–G
14
OP3
A A
J22 A , J23 B
TS
E A A
JUNCTION CONNECTOR
D2 DATA LINK CONNECTOR 3
W–L
SIL
3
1
B–R
13
AB TC
W
6
OP1
W
11
BAT
4
B–R
B–R 16
1
I4 IGNITER COIL AND IGNITER NO. 4
4
I3 IGNITER COIL AND IGNITER NO. 3
2
C
1
B–R
E
3
2 ID1 P–B
J16 JUNCTION CONNECTOR
4
I2 IGNITER COIL AND IGNITER NO. 2
1 ID1 W–L
E B–Y
From Multi Display<14–7>
E P–B J26 JUNCTION CONNECTOR P–B
2002 PRIUS (EWD464U)
From Airbag Sensor Assembly<21–3>
E
P–B
1
I1 IGNITER COIL AND IGNITER NO. 1
B–R
W–L
W E
BR B
B
14 IO1 N
B A
J24 JUNCTION CONNECTOR
W–B
EB
(*1)
W–B
A
BR
O
B W–B
Engine block
EA
F G H I
Engine block
M
2002 PRIUS (EWD464U)
(*1)
V3 VSV(HC Adsorber and Catalyst System) B–W B
I
JUNCTION CONNECTOR
V4 VAPOR PRESSURE SENSOR BR
BR
4
E2
Y–R
BR
V1 VACUUM SENSOR (HC Adsorber and Catalyst System)
Y–R
J8 A , J9 B
BR
T3 THROTTLE POSITION SENSOR
L
B
V–W
B B
B
2
+B
3 OX1A H3 HEATED OXYGEN SENSOR (Bank 1 Sensor 1)
1 HT1A
E1
1 IK1
6 IK1
4
BR
B
JUNCTION CONNECTOR P–L
B
J24 A , J25 B 7 IK1
E11 16 D
D A
E B
B
E B
12 IE1
JUNCTION CONNECTOR
J22 A , J23 B
E B
B
BR
BR
OCV+
23 A
2
+B
E1
4
* 1 : Shielded
HT1B
HT1B
1
7 D
B–W
B–R
R–G
BR
(*1)
BR
BR
BR
(*1)
(*1)
H9 HEATED OXYGEN SENSOR (Bank 1 Sensor 2)
OX1B
3
11 D
OX1B
OCV–
24 A
Y
BR
VC
Y–R
W
3
Y–R E2
BR
E2
Y–R PTNK
1 IE1 P–L
VC
2 IE1
W
(*1)
1
Y–R 1
L–R 2
BR
3
22 IE1 (*1)
C A
VTA2
VTA1
OX1A 12 D
GE01
30 A
1
2
12
(*1)
H
B–W 3
P 2
HT1A 1 D
M+
8 A
BR
1
V–W VC
1
E2 18 B
M–
7 A
(*1)
C A
7 IO1
VTA2 21 B
CCV
13 C
BR
C A
I6 INJECTOR NO. 2
2
L–R 4 BC1
I7 INJECTOR NO. 3
7 BC1
I8 INJECTOR NO. 4
3 BC1
BR
23 B
VTA
TBP
2
(*1)
HCLS
I5 INJECTOR NO. 1 15 IO1
Y–R
PTNK 22 C
#40
(*1)
2
B–W P–L
9 IO1
Y W
6 IO1
VC
B–W
2 B
B–R
HCLS
L–W #30
R–W
14 C
B–W B–R
#20
B–W E 7 A , E 8 B , E 9 C , E10 D
B
#10
B–W L
ENGINE CONTROL MODULE
1
P
11 C
6 BC1
1
2
T2 THROTTLE CONTROL MOTOR
L
IGSW
N1 NOISE FILTER (Ignition)
2 A
V6 VSV(Parge Flow Switching Valve)
2
JUNCTION CONNECTOR
2 BC1
B–R 1
5 BC1
L
1 A
1
1 BC1
V5 VSV(Canister Closed Valve)
6 B
2
1
A B
B
5 B
2
1
C A
A B
C2 CAMSHAFT TIMING OIL CONTROL VALVE
9 D
2
1
B–W
J12 A , J13 B
2
1
B–W
11
Y–R
G–Y
G
HCC
B–W B
B B
B–W
C A
B–W B
C A
B–W
10
E
D
C
B
A
(Cont. next page)
W–G
20 C
B–W
B–W
B
B–R
9
E ngine C ontrol
B
F
E
D
C
B
A
R–G
2 PRIUS (Cont’ d)
M OVERALL ELECTRICAL WIRING DIAGRAM
2 PRIUS (Cont’ d)
E ngine C ontrol
16
R–G
B–R
F A B–W
H B B–R
B–W 11 ID2
10 ID2
8 ID1
IG
1
D
L
P
Y
BR
O
IND 5
22 D
NEO
ACT
23 C
16 C
TAM
21 C
ESTP
10 C SPHV
GO
18 C
19 C
HTE–
28 C
HTE+
27 C
ETH+
ENGINE CONTROL MODULE
ETH– 8 ID2
KNK1
G2
28 A
10 A
NE–
NE+
24 B
E1
16 B
E01
E02
17 B 21 A 31 A
E03 3 A
ME01 9 A
9 ID1 A
L–B
W–B
W–B
W–B
W–B
W–B
BR
(*1)
1 EA1
7
A
LG–B
R
G
(*1)
B
(*1)
(*1)
KSW
6
L–B
3 D
J10 JUNCTION CONNECTOR
SPD
CTY R–W
5 D
FAN
HEVC
W–B
4 A
12 LG–B
G E 7 A , E 8 B , E 9 C , E10 D
8
+B T4 TRANSPONDER KEY COMPUTER GND
G
R–Y
V–W
LG
2002 PRIUS (EWD464U)
9 IA2
B–W
3
J20 JUNCTION CONNECTOR R–G R–G
B–R
B–W
From Hybrid Vehicle Control ECU<1–9>
See Air Conditioning System<24–6>
To Combination Meter <23–2>
From FAN NO. 1 and FAN NO. 2 Relay <22–3>
A
A 2
* 1 : Shielded
To Hybrid Vehicle Control ECU<1–20>
C
15
14
J27 A , J28 B
B
13
R–G
JUNCTION CONNECTOR R–G
A
H y brid V ehic le Immobiliser S ys te m
(*1)
A A
A A A A
8 C BR 7 B BR
A
W–B
4
C7 CENTER CLUSTER SW
(*1)
W–B
W–B
W–B
E
W–B
BR
D
From Body ECU <17–4>
(*1)
6
R3 B , R4 C
A B
RADIO AND PLAYER
A B
LG–B
J8 A , J9 B JUNCTION CONNECTOR
LG–B
2
A A
(*1) Engine block
EB
EA
Engine block
Left kick panel
IF
To Unlock Warning SW<9–2><15–3>
A A
J27 A , J28 B JUNCTION CONNECTOR
To Door Courtesy SW Front LH<10–2>
A A
BR
A A
BR
1
BR
G
C6 CRANKSHAFT POSITION SENSOR
2
G
C1 CAMSHAFT POSITION SENSOR
1
(*1)
R
B K1 KNOCK SENSOR
1
E B (*1)
ID
J11 JUNCTION CONNECTOR Cowl side panel LH
M
3 PRIUS
R–B
B
W
B
15A DOME
100A DC/DC
15A STOP
2002 PRIUS (EWD464U) R R
F11 B , F12 C , F13 D
B–G
LIGHT CONTROL SW
FUSIBLE LINK BLOCK NO. 1
120A MAIN
F18 FUSIBLE LINK BLOCK NO. 2
DIMMER SW W–B IG
R–G
6 2B
7 2I
Right kick panel
7 2A
10 2A
14
BR IH
21
4 2A
2 2G
R6 STOP LIGHT LH [REAR COMB. LIGHT LH] Left side of rear pillar
B A
C B
5
2
A B
C A
W–B BI
C B
2
1
A B
To Hybrid Vehicle Control ECU<1–6>
G–W
W–B
Back panel center
J32 A , J33 B
BK
5
2
To Shift Lock ECU<13–3>
G–W
JUNCTION CONNECTOR
JUNCTION CONNECTOR
JUNCTION CONNECTOR
To Brake ECU <19–12>
J14 A , J15 B
G–W
J30 A , J31 B
D B
D B
C A
E A
E A
S3 STOP LIGHT SW
4
W–B
Cowl side panel RH
A
F A
L
J17 JUNCTION CONNECTOR
D B
F A
R–G
BATTERY
R–W
16
17
17
L
FLASH
7
JUNCTION CONNECTOR
HF HU HL
8
1
9 IB1
W–B
C13 COMBINATION SW
EL
E A
2
H2 HEADLIGHT RH
E A
1
W–B
HEAD
T
R–G
3 IA1
R–G
H
J4 A , J5 B
13
JUNCTION CONNECTOR R–Y
R–G
5 ID2
R–Y 8 IA1
J4 A , J5 B
H
E A
E B
R–G
17
B9 BODY ECU
R–G
R–Y
3
7 1F
10A HEAD (RH)
H15 HIGH MOUNTED STOP LIGHT
HIGH
2
R–W
HRLY
D B
F A
1
H1 HEADLIGHT LH
10A HEAD (LH)
2
S top L ight
G–W
LOW
R–W
G–W
TAIL
OFF
J20 JUNCTION CONNECTOR
G–W
1
R–W F A
2
3
6 1F
R–Y
1 D
1 C
R–W
4
SHORT PIN
R–B
G–W
3 ID2
E
HEAD RELAY
1
L–Y
E
E
6 IA2
2
1
3
G–W
1 B
2 1B
8 1F
3
R–W
1 2H
7 1J
L–Y
9 2K
SHORT PIN
4
2
H eadlight (w /o D aytime R unning L ight)
G–W
1 1B
1
2
1
P ow er S ource
M OVERALL ELECTRICAL WIRING DIAGRAM
R7 STOP LIGHT RH [REAR COMB. LIGHT RH]
C10 COMBINATION METER
L HEAD
HIGH BEAM
R–L
JUNCTION CONNECTOR J12 A , J13 B
4 PRIUS H eadligh t (w / D ay time R unning Light)
P ow er S ourc e
1
3
2
4 R–G
W–G
2 AM1
IG1 4
H B
B–Y
L
PKB
L–O 7
DIMMER SW
T
HF HU HL
EL
OFF TAIL HEAD LO HIGH FLASH 13
8
16 BR
A
W–B
R–G
C13 COMBINATION SW
R–W
Cowl side panel LH
6 2B
11
+B
J11 JUNCTION CONNECTOR ID
R–Y
R–G 3
HI
LIGHT CONTROL SW
5 ID2 R–W
A
12
R
W–B
IE
W–B
7 2A
8
H
R–G
W–B
R–B
R–G
R–G
R–B
A J1 JUNCTION CONNECTOR
Cowl side panel LH
E
R–G
A BATTERY
J20 JUNCTION CONNECTOR
2
E R–G
3
D5 DIODE(Daytime Running Light)
1
E
R–W
R–B
2
R–G
1
To Parking Brake SW <19–8>
E 2 W–B
R–B
16 IA2
9 IA1
R–L
7
R–G
L
DRL H
6
DIM H–LP IG D3 DAYTIME RUNNING LIGHT RELAY
R–G
R–G
G–R
H2 HEADLIGHT RH
3
4
IND
R–G
R–W
R–Y
2
CHG–
1
A
6 IA2
R–B
R H1 HEADLIGHT LH
120A MAIN
F18 FUSIBLE LINK BLOCK NO. 2
1
H
5
17 B
3 ID2
E
1
R–G
HRLY 2 B
3 R–W
Y–B 9
R
5 1E
RDY
C
7 2I
9 A
R–W
3
B8 A , B9 B
W–B
2
W–B
2 1E
DRL RELAY
10A HEAD HI (RH)
10A HEAD HI (LH)
10A HEAD LO (RH)
10A HEAD LO (LH)
B–G
F11 B , F12 C , F13 D
FUSIBLE LINK BLOCK NO. 1
100A DC/DC 1 D
7 1F
3 1
5
17 IA2 7 ID2
BODY ECU
3 3
6 1F
10 2A Y–B
3
8 2K
2
B 1 C
L
A
R–G
3
21 L
R–L
1 1B
2
L
R–G
DIM RELAY
17
C
J20 JUNCTION CONNECTOR
5
R–G
1 2
4
8 ID1
R–L
7. 5A DRL
1
3
B
1 B
3
IG1 RELAY
30A HEAD
1 W
2002 PRIUS (EWD464U)
15A DOME
2
1 2 1B
SHORT PIN
HEAD
HEAD RELAY
2
HIGH BEAM
1
R–G
3
5
10A GAUGE
4
10 2K C10 COMBINATION METER
11 1J 5A AM1
1
3 1E
14
5 2C
1 2H
L
R–L
8 1F
6 2D 3 2B
7. 5A ECU–B
7 1J
R
L
R–G
L–Y
I15 IGNITION SW
R–G
2 2G
W
W–G
B–Y
ST1
J27 A , J28 B
ACC
4 2A
JUNCTION CONNECTOR
L
F A
J17 JUNCTION CONNECTOR Cowl side panel RH
IG
Right kick panel
IH
M
5 PRIUS
W
W
10A TURN–HAZ
B
2002 PRIUS (EWD464U)
Cowl side panel LH
J11 JUNCTION CONNECTOR
G A
100A DC/DC
B–G
W–B
W–B
120A MAIN
J17 JUNCTION CONNECTOR
J18 JUNCTION CONNECTOR W–B IG
A
G–Y
J4 JUNCTION CONNECTOR
Cowl side panel LH
W–B IE
A
A
W–B
A
A
A
2
1
J1 JUNCTION CONNECTOR
J7 JUNCTION CONNECTOR
A
F8 FRONT TURN SIGNAL LIGHT RH
A
G–Y 11 IA1
J12 A , J13 B JUNCTION CONNECTOR
2
1
W–B
Cowl side panel RH
W–B
A
B B
B A
G–Y
3 2F
B A
C B
5
3
5 2M
W–B
W–B ID
A
2
4 2K
W–B BI
R6 REAR TURN SIGNAL LIGHT LH [REAR COMB. LIGHT LH]
BATTERY
F18 FUSIBLE LINK BLOCK NO. 2
RH
B A
2
2 2A
19
JUNCTION CONNECTOR
J32 A , J33 B Left side of rear pillar
18
W–B BK
5
3
3 2M
1 2A
RH
G–Y
1
W–B C13 TURN SIGNAL SW [COMB. SW]
TURN
3
7
F7 FRONT TURN SIGNAL LIGHT LH G–B
1 D
W–G
F11 B , F12 C , F13 D
J24 JUNCTION CONNECTOR LH
1
6
LR
LL
3
12 2J
G–B
FUSIBLE LINK BLOCK NO. 1
W–B
5
8
G–Y
1 B
8 2K 8 2D
3
W–B
2
5A AM1 IG1 RELAY
W
5
R–L
EL
1
J20 JUNCTION CONNECTOR
IG HAZ T5 TURN SIGNAL FLASHER RELAY ER E
G–R
B
G–B G–Y
1 C
B–Y 4
4 ID1
H7 HAZARD SW [HAZARD WARNING SW] G–R
C
C
G–B
A
A
6 IA1
LH
L
1
10 2K
4
3
4
R7 REAR TURN SIGNAL LIGHT RH [REAR COMB. LIGHT RH] Back panel center
6 2B
7 2A
14
C10 TURN SIGNAL INDICATOR LIGHT [COMB. METER]
L
2 1B
W–G 1 2H
W
3 2B
J22 A , J23 B
R–L
JUNCTION CONNECTOR
6 2D
E A
D B
W–B
3
T urn S ignal and H az ard W arning Light
L
6 1J
ST1
IG1 4
ACC
2
W
I15 IGNITION SW
2 AM1
1
P ow er S ource
BR IH
Right kick panel
M OVERALL ELECTRICAL WIRING DIAGRAM
G–Y
W–B
L–B
10A GAUGE
6 PRIUS
P ow er S ource
B ac k– U p Light
1
3
2
4 R–B
R–B
ACC D A
D A
B A
JUNCTION CONNECTOR
IG1 4 ST1
B B 3 2B
R–L
6 2D
3 2C
1 2H
1
2 W–G
R–B
1
R–B
10A GAUGE
5A AM1
B5 BACK–UP LIGHT RELAY 5
To Navigation ECU <14–6>
3
R–B
R–L
W
W–G
B–Y
I15 IGNITION SW
5 IJ1
J27 A , J28 B
2 AM1
JUNCTION CONNECTOR
W–G
9 IF1
5
14 A
8 2D
RL
HTE+
HTE– 29 D
2 B
3 B
W–B
IH E 9 C , E10 D
R7 BACK–UP LIGHT RH [REAR COMB. LIGHT RH]
IG
14 D MPX1
J32 A , J33 B
13 D MPX2
5
W–B
18 C HTE–
B A
JUNCTION CONNECTOR
Cowl side panel RH
19 C HTE+
4
W–B
Cowl side panel LH
BR
W–B
W–B ID
J17 JUNCTION CONNECTOR
C B
GR–L
B
MPD2 11
G1 GATEWAY ECU
B
A J11 JUNCTION CONNECTOR
5
GR–B 4 GR
1
A BATTERY
4
6 2B
MPD1 J18 JUNCTION CONNECTOR
E
P1 PARK/NEUTRAL POSITION SW W–B
F18 FUSIBLE LINK BLOCK NO. 2
J22 JUNCTION CONNECTOR W–B
120A MAIN
E
R–B
4
7 2A
R6 BACK–UP LIGHT LH [REAR COMB. LIGHT LH]
MP2+
W–B
B–G
4
1
R–B
L
16
MPX+
A7 A/C AMPLIFIER
BR
(Shielded)
Y
A
1 D
MPX–
B8 BODY ECU
A
11
MPX+
J24 JUNCTION CONNECTOR
100A DC/DC
15
F11 B , F13 D FUSIBLE LINK BLOCK NO. 1
B B
GR
R–B
W–B
1 B
19 D
GR–B
W–B
14 E
B A
J30 A , J31 B
8 2K
1 B
HYBRID VEHICLE CONTROL ECU
R–B
3
C10 A , C11 B
2
COMBINATION METER
H13 E , H14 D
W
2002 PRIUS (EWD464U)
L
IG1 RELAY
Right kick panel
BI
Left side of rear pillar
BK
Back panel center
ENGINE CONTROL MODULE
M
1 2H
W
OFF
100A DC/DC
2002 PRIUS (EWD464U)
LG–R
LIGHT CONTROL SW
B–G
120A MAIN Cowl side panel LH
W–B IG
W–B W–B IE
A
W–B
Cowl side panel RH
F5 FRONT SIDE MARKER LIGHT LH J1 JUNCTION CONNECTOR Left side of rear pillar
L2 LICENSE PLATE LIGHT LH
B A
C B
2
1
W–B
A
1
2
A A
W–B BI
1
A A
W–B
C B
5
6
A A
J32 A , J33 B
Back panel center
JUNCTION CONNECTOR
W–B BK
2
1
A A
L3 LICENSE PLATE LIGHT RH
J17 JUNCTION CONNECTOR
F4 FRONT PARKING LIGHT RH J7 JUNCTION CONNECTOR
W–B
2
1
A A
G
A
A
G
16
G W–B
JUNCTION CONNECTOR
G
G
HEAD
EL
2
1
F B
D A
J4 A , J5 B
F B
D A
5 2L
W–B
C13 COMBINATION SW
H
1
2
10 IA1
5 2F
J32 A , J33 B JUNCTION CONNECTOR
G
T
7 2J
7. 5A TAIL
G
TAIL
14
B9 BODY ECU
TAIL RELAY
3
4
5
1
A A
A B
G
BATTERY
F18 FUSIBLE LINK BLOCK NO. 2
LG–R
6 ID2
18
T
3
5
2
Taillight
G
1
LG
TRLY
11
2 ID2
LG
1 D
F11 B , F13 D
6 2K
2
1
G
1 B
1
P ow er S ource
G
FUSIBLE LINK BLOCK NO. 1
7 PRIUS
6
M OVERALL ELECTRICAL WIRING DIAGRAM
G
W–B
R7 TAILLIGHT RH [REAR COMB. LIGHT RH]
G
R6 TAILLIGHT LH [REAR COMB. LIGHT LH]
W–B
F6 FRONT SIDE MARKER LIGHT RH
F3 FRONT PARKING LIGHT LH W–B
W–B
8 PRIUS
P ow er S ource
Illumination
1
3
2
4
L 4 2A LG TAIL RELAY
5A PANEL
H A
LG
5
LG
1
H A
H A J27 A , J28 B
2
1 2H
2 2G
3
6 2K
JUNCTION CONNECTOR F B
1 2D
F B
F B
F B
L
L–Y LG
C10 A , C11 B
7 1J
COMBINATION METER
5
10
6 B
3
W–B E
C
E
C
W–B
A
7 2A
8 2D
6 2B
8 2K
D B
JUNCTION CONNECTOR A
BR
BR
W–B
Right kick panel
IH
W–B
E A
Left kick panel
A
L
W–B
W–L
W–L
120A MAIN
B
J21 JUNCTION CONNECTOR
C
J24 JUNCTION CONNECTOR
W–L
J21 JUNCTION CONNECTOR
C
J22 A , J23 B
IF
W–L
LG–R
A
J21 JUNCTION CONNECTOR
BATTERY
7 B
14 A
L
W–B
J21 JUNCTION CONNECTOR
B–G
B
5
A W–L
B W–L
6
A
1 F18 FUSIBLE LINK BLOCK NO. 2
4
W–L
W–B
W–L
W–L
1 D
L1 LIGHT CONTROL RHEOSTAT
C7 CENTER CLUSTER SW
5 A
LG
LG
LG
2
10 B R2 A , R3 B
6
5
RADIO AND PLAYER
8
BR
W–L
100A DC/DC
F11 B , F12 C , F13 D
LG
1
H7 HAZARD WARNING SW
M7 MULTI DISPLAY
2
1 B
FUSIBLE LINK BLOCK NO. 1
LG
LG
B 1 C
A22 ASHTRAY ILLUMINATION
See Taillight System<7–1>
W
15A DOME
2002 PRIUS (EWD464U)
2 1B
21 A
J11 JUNCTION CONNECTOR Cowl side panel LH
ID
M
L
L–Y
W
B
15A DOME
2002 PRIUS (EWD464U)
100A DC/DC B A
FUSIBLE LINK BLOCK NO. 1
F11 B , F12 C , F13 D
B–G
W–B
120A MAIN
G–O A B
W–B A A
A B
A A W–B
E A
D B
W–B
JUNCTION CONNECTOR
J24 A , J25 B
W–B
W–B
W–B
B21 BUCKLE SW RH AND SEAT BELT WARNING OCCUPANT DETECTION SENSOR 1
W–B
U1 UNLOCK WARNING SW
2
P–L
L–B
W–B 11 IJ1
B20 BUCKLE SW LH
10 IJ1
1
1
2
2 B
JUNCTION CONNECTOR
J22 A , J23 B
A
G–O
ID
A
B A
See Interior Light System <10–2> J27 A , J28 B
3
A
A
G–O
JUNCTION CONNECTOR
PKBL 3 B
9 IJ1
To Airbag Sensor Assembly <21–3>
2
5 B
MPX+ DBKL
15 A
3 B
COMBINATION METER
C10 A , C11 B
A7 A/C AMPLIFIER
22 A
Right kick panel
BUZZER
14 A
21 A
6 2B
7 2A
IH
BR
Cowl side panel LH
J11 JUNCTION CONNECTOR
LG L–B D B
1 2K
MPX–
16 A
11
MPX+
MP2+
4
4
MPD1
MPD2
11
SEAT BELT (Front Passenger’ s Seat)
L
BATTERY
BODY ECU
From Transponder Key Computer <2–16>
10A GAUGE
2 ID2
9 2C
7. 5A TAIL P–L
F18 FUSIBLE LINK BLOCK NO. 2
6 2K
B8 A , B9 B
3
DCTY
T
J29 JUNCTION CONNECTOR
1
IG1 RELAY 8 2D
KSW
H
8 IJ1
G–O
1 D
5A AM1
8 2K
TAIL RELAY 12
See Headlight System<3–1><4–3> 17 B 18 B
See Taillight System<7–1>
HRLY
2 B
GR
B
GR–B
TRLY E 11 B 1 B
R–G 9 B
G–O
IG
15
13
MPX2
MPX1
From Airbag Sensor Assembly<21–2>
TAIL
17
E10 ENGINE CONTROL MODULE
GR–L
GR–B
3
5
3
5
7. 5A ECU–B
2
1
F
J27 JUNCTION CONNECTOR
14
G–O
GR
2
1
1 2H
5 2A
F
4
S eat B elt W arning
L
1 C
B–Y 3 2B
W–G
6 2D
W GR–B
2 1B
ST1
IG1 4
5 2C
L R–G
3
Light A uto T urn O ff
G1 GATEWAY ECU
7 1J
I15 IGNITION SW
2 AM1
ACC
2
K ey R eminder and L ight R eminder B uzz er
GR–L
2 2G
4 2A
W–G
1
P ow er S ource
L
1 B
9 PRIUS
M OVERALL ELECTRICAL WIRING DIAGRAM
SEAT BELT (Driver’ s Seat)
L–B
W–B
LG
W–B
W–B
10 PRIUS
P ow er S ource
Interior Light
1
3
2
4
B
B
L GR–B
2 1B
GR–B W–G
ACC 2 AM1
IG1 4
15A DOME
4
5 2C
5 2A
MPD2
7 1J
11
4 2A
3 2N 3 B
2 B
22 A
21 A
12 A
6 2L
D B
D B
L–Y 1 P5 PERSONAL LIGHT
1
R–W
J30 A , J31 B
JUNCTION CONNECTOR
L5 LUGGAGE COMPARTMENT LIGHT
2
E B
D A
J30 A , J31 B
E A
L–Y
DOOR
BR
1
R–W
D A
1
W–B
R–W
2
R–W
1
B
L6 LUGGAGE COMPARTMENT LIGHT SW
B
J33 JUNCTION CONNECTOR
BR
W–B
D9 DOOR COURTESY SW REAR RH
1
R
1
I16 INTERIOR LIGHT ON OFF
R–B
R–L
R
2
6 2B
4 IF1
D8 DOOR COURTESY SW REAR LH R–G
ID
D4 DIODE (Door Courtesy)
1
R–G
Cowl side panel LH
1
E A 2 7 2A
3 IB1
R–Y
J11 JUNCTION CONNECTOR
BATTERY
3
L–Y
R–B
D6 DOOR COURTESY SW FRONT LH R–W
R–W
W–B A
D7 DOOR COURTESY SW FRONT RH
120A MAIN
F18 FUSIBLE LINK BLOCK NO. 2
A
R–W
A
J12 A , J13 B
J16 JUNCTION CONNECTOR
1
D A
14 A
1 2N
R–W
B–G
A
D A
F B
R–W
1 D
F B
JUNCTION CONNECTOR
R–W
FUSIBLE LINK BLOCK NO. 1
From Transponder Key Computer<2–16>
100A DC/DC
13 ID2 F11 B , F12 C , F13 D
3 2K
LP 7
JUNCTION CONNECTOR
1 2K R–W
LCTY 14 A
6
R–W
1 B
RCTY
3
L
R–W
W–B
W–B
W
1 C
1 B
L–Y
8 2D
8 2K
DCTY
C10 A , C11 B
COMBINATION METER
MPX–
BODY ECU PCTY
2 2G
L
L
GR–B
13
16 A
MPX+
MPX+ 11
DOOR
15 A
B B8 A , B9 B
MP2+
GR
MPX2
GR
9 B
IG
MPX1
GR–B
R–G
15
3
E
B
2002 PRIUS (EWD464U)
IG1 RELAY
14
GR–L
E10 ENGINE CONTROL MODULE
F
5
2
J27 JUNCTION CONNECTOR
7. 5A ECU–B
10A GAUGE
5A AM1
1
F
4 L–Y
I15 IGNITION SW
MPD1
A7 A/C AMPLIFIER
1 2H
G1 GATEWAY ECU
3 2B
L
6 2D
W
W–G
B–Y
ST1
R–G
7 IC1 R–Y
From Power Window Master SW<18–2>
Right kick panel
IH
Left side of rear pillar
BI
M
W LG
L
100A DC/DC
2002 PRIUS (EWD464U)
B–G
HR
BR–R
A A
A
6
M+
W–B
120A MAIN
M
R10 REMOTE CONTROL MIRROR LH
M
M
5
3
R11 REMOTE CONTROL MIRROR RH
M
1
L
3
LG 5
BR–R
1
W
W–B Cowl side panel LH
R–G
10 IN1
BR–R
8 IN1
2
W 9 IN1
L R–G
10 IG1
5
HL
R–G
ID
VR
LEFT/UP BR–R
8 IG1
3
MH
A A
A B
7
E
R5 REMOTE CONTROL MIRROR SW
BR–R
9 IG1
4
DOWN
J11 JUNCTION CONNECTOR
UP VL
MV
LEFT
A
8 2D
10A ACC
8 B
BR–R
BATTERY
ACC RELAY
15A CIG
2 2D
GR–R
F18 FUSIBLE LINK BLOCK NO. 2
3
5
5A AM1
5 2D
J27 JUNCTION CONNECTOR
RIGHT/DOWN
1
2
1
W–G 1 2H
W
3 2B
GR RIGHT
8 2K
8 2C
C
C
A A
4
1
2
C igarette L ighter
W–B
1 D
P–L GR–R
SELECT SW
FUSIBLE LINK BLOCK NO. 1
ST1
IG1
ACC 3
3
GR–R
I15 IGNITION SW
2 AM1
2
R emote C o ntrol M irror
OPERATION SW
1 B
W–G
1
P ow er S ource
GR
F11 B , F13 D
11 PRIUS
M OVERALL ELECTRICAL WIRING DIAGRAM
C8 CIGARETTE LIGHTER W–B
JUNCTION CONNECTOR
J24 A , J25 B
W–B
W–B
J26 JUNCTION CONNECTOR
W–B
12 PRIUS
P ow er S ource
H orn
W iper and W as her
1
3
2
4
L C12 FRONT WIPER AND WASHER SW[COMB. SW] 10 IH1
ACC W–G
2 AM1
IG1 4
L
1 2H
2 2N
6 2I
+S
3 2G
W1 M WASHER MOTOR 1 L–Y
11
+B 17
WIPER RELAY +2
E 2
8
EW
+1
WF
+S
7
16 L–W
L–B
L–R
W–B
L
L–Y
IG1 RELAY
16 IA1
17 IA1
15 IA1
3 L–W
L–B
L–R
9 1F
B–W
W–B
B–R
L
B
W
W–B
8 IA2 1
3
5
1
2
+2
+1
+S
+B
H4 HORN B–R
A J20 JUNCTION CONNECTOR
D D
M
J18 JUNCTION CONNECTOR
D A
B–R
B–G
F11 B , F12 C , F13 D
100A DC/DC
FUSIBLE LINK BLOCK NO. 1
2002 PRIUS (EWD464U)
1 D
B1
HI
WF
5
2
1 C
INT2
WASHER
8 2K
1 B
INT1
LOW
30A WIPER
15A WASHER
5A AM1
1
3
2 1J
L
2 IA1 HORN RELAY
2
+1
2
3 2B
5
10A HORN
L
6 2D
W
W–G
B–Y
I15 IGNITION SW
1
+2
INT
L
ST1
2 1B
+B OFF
B–Y
1 E W–B
B–R
F9 FRONT WIPER MOTOR
W–B
C14 HORN SW [COMB. SW]
J7 JUNCTION CONNECTOR A A
W–B
6
4
W–B
To Body ECU <17–2>
120A MAIN
F18 FUSIBLE LINK BLOCK NO. 2
A
A J11 JUNCTION CONNECTOR
BATTERY Cowl side panel LH
ID
A J17 JUNCTION CONNECTOR
IG
Cowl side panel RH
J1 JUNCTION CONNECTOR IE
Cowl side panel LH
M
W
100A DC/DC
2002 PRIUS (EWD464U) A A
10A ACC
E
B–G
A A
A B
5
STP
6
1 ID2
W–B
W–B
120A MAIN
JUNCTION CONNECTOR
J24 A , J25 B
W–B
IG
P2
P
P1
E A
D B
E
E
3
4
4
KLS+
B
JUNCTION CONNECTOR
J22 A , J23 B
W–B
J21 JUNCTION CONNECTOR
D B
2
SHIFT LOCK CONTROL SW
FREE
SHIFT LOCK SOLENOID
1
1 Y
LOCK
U1 KEY INTERLOCK SOLENOID [UNLOCK WARNING SW]
SLS–
2
L–R
3 B
4
11 IJ1
1
3
2
1
12 IJ1
B20 TENSION REDUCER LH[BUCKLE SW LH]
T6 TENSION REDUCER SOLENOID
E lec tric T ension R educ er
R
J21 JUNCTION CONNECTOR
J14 JUNCTION CONNECTOR
SLS+
3
D
D
1
S2 SHIFT LOCK ECU
J26 JUNCTION CONNECTOR
5 ID1
ACC
B
B
C B
J27 A , J28 B JUNCTION CONNECTOR
D
W–B
W–B Cowl side panel LH
J11 JUNCTION CONNECTOR
ACC RELAY
C A
D
W–B
ID
A
8 2D
3
5
2 2D
G–W
L
BATTERY
IG1 RELAY
2
1
8 2C
GR–R
F18 FUSIBLE LINK BLOCK NO. 2
3
5
5A ECU–IG
2 2I
G–W
W–B
1
W–G 5A AM1
4 2C
B–Y GR–R
2
1
W 1 2H
B–Y
3 2B
P–L B–Y
8 2K
6 2D
GR–R
G
1 D
P–L B–Y From Stop Light SW<3–4> B–Y
FUSIBLE LINK BLOCK NO. 1
ST1
IG1 4
ACC 3
3
GR–R
I15 IGNITION SW
2 AM1
2
S hift L ock
B–Y
1 B
W–G
1
P ow er S ource
B–Y
F11 B , F13 D
13 PRIUS
M OVERALL ELECTRICAL WIRING DIAGRAM
W–B
W–B
W–B
W–B
MEMO
2002 PRIUS (EWD464U)
14 PRIUS
L–Y
2 2G
4 2D
L–Y
W
15A DOME
B
2002 PRIUS (EWD464U)
100A DC/DC 1
2
1
2
P (*1)
B–G Left kick panel
V (*1)
W–B
120A MAIN
+B
2
4 GND
C7 CENTER CLUSTER SW
9 EJCT
1 ACC
GR
BR
W–B IF
LG
R9 REAR SPEAKER RH
B R8 REAR SPEAKER LH
Y
F15 FRONT DOOR SPEAKER RH
2
P–B
F14 FRONT DOOR SPEAKER LH
1
L–R
ID
2
TX–
8
F G
Cowl side panel LH
J11 JUNCTION CONNECTOR
A
1
F
TX+
7
C
C
TX+ 10 C
TX– 9 C
FL+
2 B
R
BATTERY
F18 FUSIBLE LINK BLOCK NO. 2
6 IF1
5 IF1
BR
R
8 IF1
P (*1)
W
7 IF1
V (*1) 4 IN1
LG L
3 IN1
L
4 IG1
GND 8 C
BU+B 5 C
FL–
6 B
8 IJ2
9 IJ2
G
3 IG1
4 IJ1
BR
ACC+B EJECT 12 C 11 C
GR–R
GR–R
R
1
RR– 3 A
RR+ 1 A
RL– 6 A
FR– 5 B
RADIO AND PLAYER RL+ 2 A
B
FR+ 1 B
5A ECU–IG Y
FL– 6 B
7. 5A ECU–B R
FL+ 2 B
GR–R W
GND 7 B
ACC RELAY
1 D
F11 B , F12 C , F13 D
3 B ACC+B R2 A , R3 B , R4 C
GR–R
J26 JUNCTION CONNECTOR
C B
GR–R
FUSIBLE LINK BLOCK NO. 1
L–Y BU+B
GR–R
4 B
B
B
C B
C A
4
R G
F
P(*2)
V(*2)
GR–R
GR–R
GR–R
L–Y
L–Y
B–Y
R–G
C
* 1 : w/o Navigation System * 2 : w/ Navigation System
V (*2)
1 B
5A AM1
8 2K
10A ACC 5
J24 A , J25 B
2
JUNCTION CONNECTOR L–Y
C B
C A J27 A , J28 B
3
C B
B A
JUNCTION CONNECTOR
2
3
L–Y B A
L–Y
IG1 RELAY
1
L–Y B A
GR–R P (*2)
1 C
B–Y 8 2C 2 2D
3
GR–R
2 1B
W–G 5
W
1
B–Y 5 2C
R–G
2 2I
P–L
1 2H
GR–R
6 2D 3 2B
P–L
2
R adio and P layer
GR–R
7 1J
ST1
IG1 4
ACC 3
I15 IGNITION SW
W–G 2 AM1
1
P ow er S ource
K
J
I
H
G
F
E
D
C
B
A
(Cont. next page)
M OVERALL ELECTRICAL WIRING DIAGRAM
J26 JUNCTION CONNECTOR
14 PRIUS (Cont’ d)
N av igation S ys tem A B
E
B–Y
L–Y
D
M5 A , M6 B , M7 C
L–Y
MULTI DISPLAY D
GR–R GR–R B 3 B
VR 1 B
TC 14 A
B–Y
6 B VG
17 A GND
8 2D
MPX2 13
GR
To Combination Meter <23–3>
R–B
From Back–Up Light Relay<6–4>
BR
V–W
Left kick panel
IF
A
W–B
V–W
NAVIGATION ECU 3 IJ1
MPX1
W–B 8 2K 21 IJ1
J11 JUNCTION CONNECTOR ID
Cowl side panel LH
3 MPX– MPX+
16 B8 BODY ECU
REV 14 A
C11 COMBINATION METER
N2 A , N3 B
BR
BR
SPD 5 A
MPX+ 11
14
GR
D B
4 MP2+
GR–L
1 B VR
E
E10 ENGINE CONTROL MODULE
3 B B
11
GR–B
8 B SYNC
E
A7 A/C AMPLIFIER
7 B G
E A
J22 A , J23 B
2 B R
MPD2
4
W–B
A JUNCTION CONNECTOR
10 B TX1–
BATT
W–B
A W–B
J21 JUNCTION CONNECTOR
A
W–B
5 B TX1+
8
IG
MPD1
7 W–B
J24 JUNCTION CONNECTOR
(SHIELDED)
Y
G
B
R
W
(SHIELDED)
G (*2) 2 A AUO+
G
R (*2)
9 A +B
R
GR–R
K
R G
V(*2)
11 A AUO–
P(*2)
1 A 10 A 18 A AUI+ AUI– ACC
L–Y
J
6 IJ2
2
CG
14
G (*2)
R (*2) 7 IJ2
3 IG1
R–G
9 ACC G1 GATEWAY ECU
GND 4 IG1
H B
B–Y
5
GTX– GTX+
F A
J21 JUNCTION CONNECTOR
GR–R
12
R
20 IJ1
D D
G
19 IJ1
D B–Y
To Parking Brake SW <19–8>
18 IJ1
(SHIELDED)
15 IJ1
Y
17 IJ1
G
16 IJ1
B
22 IJ1
R
7 IJ1
W
P (*2)
V (*2)
6 IJ1
G
R
F14 FRONT DOOR SPEAKER LH 2 1
P(*2)
(SHIELDED)
I
V(*2)
5 ID1
To Combination Meter <23–3>
R–Y
To Data Link Connector 3<2–5>
7 ID1
L–Y
2002 PRIUS (EWD464U)
H
TX3– TX3+ IG 11 A 4 A 2 C
R
SPD 5 A
G
GND1 6 C
P–B
Y
G
B
R
W
(SHIELDED)
1 IJ1
PKB 13 A
J27 A , J28 B
SYNC 8 B
V–W
G 7 B
BR
R 2 B
R–Y
VG 6 B BR
TX1– 10 B
G
R
GR–R
L–Y
L–Y
TX1+ 5 B
G
+B1 ACC TX+ TX– 1 C 4 C 3 A 10 A
GR–R
R
F G
8
R–G
D
7
6
JUNCTION J14 CONNECTOR JUNCTION CONNECTOR B–Y B–Y B–Y
C
5
R–G
G atew ay S y stem
* 2 : w/ Navigation System
2
MPX– MPX+ 15
GR–B
M
W
J11 JUNCTION CONNECTOR Cowl side panel LH
D B
B A
L–B
J24 A , J25 B
L–Y
2002 PRIUS (EWD464U) J27 A , J28 B
F11 B , F12 C A A
From Transponder Key Computer<2–16> W–B
L–B W–B
W–B
FUSIBLE LINK BLOCK NO. 1
F18 FUSIBLE LINK BLOCK NO. 2
100A DC/DC
B–G
120A MAIN
A A W–B
1 2K
3
RX 6 A
MPX1
18
5 IG1
5
16
CPUB DCTY
DCTY
6
15
KUL
2 IG1
3
5
6
KL
P9 POWER WINDOW MASTER SW
UNLOCK
JUNCTION CONNECTOR
J24 A , J25 B
U1 UNLOCK WARNING SW
3 2K
PCTY 12 A
W–B
A B
1
2
6 2L
6
RCTY
L–B
W–B ID
A
9 2C
12
B A
B8 A , B9 B BODY ECU KSW
LSWD
ACTD 10 B
1
M
2
5 IC1
7 IG1
D13 DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SW AND DOOR DETECTION SW FRONT LH
4
10
W
BATTERY
1 B
E
G–Y
1 IG1
15
IG
R
1
B
G
1 D
L–Y
C B
W–B
8
B
9 B B
4
R
1 C
8 2D
5A AM1
B A
3
5 2C
Y
8 2K
2
5
1 2H
3
D oor Loc k C ontrol
A
(Cont. next page)
G
1 B
4 2D
1
3 2B
J27 JUNCTION CONNECTOR
L–B
2 1B
15A DOME
IG1 RELAY
6 2D
W–G
L–Y
B–Y
W
2 2G
ST1
R–G Y
7 1J
W–G
IG1 4
ACC
F
F
2
R–G
I15 IGNITION SW
2 AM1
1
P ow er S ource
15 PRIUS
M OVERALL ELECTRICAL WIRING DIAGRAM
LOCK W–B
See Power Window System<18–2>
L–Y
See Interior Light System <10–2><10–3>
JUNCTION CONNECTOR
W–B
10A GAUGE
30A DOOR
7. 5A ECU–B
W–B
L–Y
JUNCTION CONNECTOR
, F13 D
15 PRIUS (Cont’ d)
D oor L ock C ontrol
5
7
6
8
B8 A , B9 B BODY ECU
UL2
L2
16 B
LSWP
7 B
17 A
4 2I
1 2J
B A
12 ID2
1 IF1
6 BA1
1 BA1
W–B
3
W–B
3
D10 DOOR LOCK CONTROL SW FRONT RH
5 UNLOCK
1 BB1
R–B
D11 DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SW REAR LH
6 LOCK
D12 DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SW REAR RH
4
W–B
M
6 IN1
G–B
1
M
2
W–L
2
1 IN1
7 BA1
R
G
1
W–B
W–B
D14 DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SW AND DOOR UNLOCK DETECTION SW FRONT RH
3
4
2 BA1
W–L
M
7 IQ1
B J33 JUNCTION CONNECTOR
B
2 IQ1
W–B
W–B
W–B
A B W–B
W–B
J18 A , J19 B
W–B
A B
5
7 BB1
R
LOCK
UNLOCK 4
6
6 BB1
G
3
2 BB1
R
2
6 IQ1
G
W
G
L–B 1
5 IQ1
1
W–L
W–L
2 IN1
2
R
G
R
G
12 IN1
2 IF1
L4 LUGGAGE COMPARTMENT DOOR UNLOCK SW
R
G
W–L
B B
W–L
A B
B A
L–B
B B
LUG 5 A
J22 A , J23 B
A B
UL1 15 B
J14 A , J15 B JUNCTION CONNECTOR
JUNCTION CONNECTOR
B A
9 2L
W
G
L–B
2002 PRIUS (EWD464U)
C A
8 2L
B B
11 IN1
L1 14 B
G–B
R
G
G C A
LSR 18 A
L–B
16
R–B
ACT–
9
W–L
A
ACT+
JUNCTION CONNECTOR A A
A W–B
W–B
A
IG
J17 JUNCTION CONNECTOR Cowl side panel RH
BI
Left side of rear pillar
Right side of rear pillar
BJ
M
16 PRIUS
W
2002 PRIUS (EWD464U) R–G
L–Y 2
J23 JUNCTION CONNECTOR
10A GAUGE
7. 5A ECU–B
100A DC/DC
FUSIBLE LINK BLOCK NO. 1
F11 B , F12 C , F13 D
B–G
E
E
1
E
RDA A A
A A
KSW
A A
A B
1
2
B
B
9 2C
12
JUNCTION CONNECTOR
J24 A , J25 B
U1 UNLOCK WARNING SW
J27 JUNCTION CONNECTOR
LUG 5 A
W–B
120A MAIN
BJ
B
B
1
2
2 IF1
W–B
W–B
L–Y Cowl side panel LH
3
B–R PRG
B–R
W5 WIRELESS DOOR CONTROL RECEIVER
R–G
L
+B
F
L
ID
W–B J11 JUNCTION CONNECTOR
R–G 5
F
F
5 2C
RDA 8 A
W–B
BATTERY
A
W–B
PRG 7 A
B8 A , B9 B BODY ECU
W–B
F18 FUSIBLE LINK BLOCK NO. 2
8 2D
9 B
S
B
8
L–B
1 IG1
8 2K
IG1 RELAY
1 B
E
IG
15
6 2L
6
RCTY
Right side of rear pillar
J33 JUNCTION CONNECTOR
L4 LUGGAGE COMPARTMENT DOOR UNLOCK SW
1
C B
JUNCTION CONNECTOR
J24 A , J25 B
3
5
1 2H
L–B
1 D
B
1 C
L–Y
B A
2
1
3 2B
5A AM1
4 2D
2 2G
6 2D
3
W ireless D oor L ock C ontrol
L–B
1 B
15A DOME
L–Y
B–Y
2
30A DOOR
2 1B
ST1
W–G L–B
7 1J
W–G
IG1 4
ACC W
I15 IGNITION SW
2 AM1
1
P ow er S ourc e
3 2K
4
12 A
PCTY
L–Y
W–B
1 2K
3
DCTY
B
A
(Cont. next page)
M OVERALL ELECTRICAL WIRING DIAGRAM
See Interior Light System <10–2><10–3>
W–B
W–B
W–B
W–B
R–G
W–B
J27 JUNCTION CONNECTOR
16 PRIUS (Cont’ d)
W ireless D oor Loc k C ontrol
5
7
6
8
B8 A , B9 B BODY ECU
RX
ACTD
6 A
UL2
10 B
L2
16 B
LSWP
7 B
17 A
ACT+
ACT–
9
16
4 2I
1 2J
LSR
L1
18 A
UL1
14 B
15 B
Y B B
A B
KL
W–L
KUL 15
R
5
B B B B
G
CPUB
12 ID2
10
W–L
R 6 BB1
W–L
G
R
G
2 BB1
1 IF1
W
G–Y
L–B
L–Y
7 IG1
5 IC1
1 BA1
D10 DOOR LOCK CONTROL SW FRONT RH
3
W–B
1 BB1
3
UNLOCK
D11 DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SW REAR LH
5
LOCK
2
R–B
6
W–B
D12 DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SW REAR RH
6 IN1
G–B
4
M
2 IQ1 W–B
A B W–B
W–B
L–Y
W–L
M
1
W–B
W–B
B
W–B
2
1 IN1
7 BA1
R
1
J18 A , J19 B A
6 BA1
G
3
W–B
D14 DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SW AND DOOR UNLOCK DETECTION SW FRONT RH
4
2 BA1
W–L
5
7 BB1
R
G
6
M
7 IQ1
A B
R
3
6 IQ1
G
4
5 IQ1
W
2
W–B
D13 DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SW AND DOOR UNLOCK DETECTION SW FRONT LH
1
LOCK
M
2 IN1
G
2
UNLOCK
2 IG1
1
12 IN1
L–B
W–B
3
4
11 IN1
G
R
LOCK
UNLOCK
See Power Window System<18–2>
5
B A
LSWD
6
6
R–B
A B
B A
J22 A , J23 B
JUNCTION CONNECTOR
JUNCTION CONNECTOR
B A
W–L
DCTY
G–B
J14 A , J15 B
C A
MPX1
16
W–L
9 2L
W
G
L–B
G
R
Y
2002 PRIUS (EWD464U)
18
P9 POWER WINDOW MASTER SW
R
C A
G
G
5 IG1
8 2L
JUNCTION CONNECTOR A A
A W–B
W–B
A
IG
J17 JUNCTION CONNECTOR Cowl side panel RH
BI
Left side of rear pillar
M
17 PRIUS
W
W–G
W
2002 PRIUS (EWD464U)
100A DC/DC
FUSIBLE LINK BLOCK NO. 1
F11 B , F13 D
B–G
A A
JUNCTION CONNECTOR
3 2K
10 B ACTD
7 B L2
12 A
BODY ECU PCTY
5 A LUG
SH 20 A
17 A LSWP
T1 THEFT DETERRENT HORN
1 2K
3
DCTY
B8 A , B9 B
16 B UL2
9
13 A
HCTY
ACT+
1
W–B
120A MAIN
Cowl side panel LH
W–B
IE
A
A
A
2
1
10 IE1
9 IE1
W–B
W–B Cowl side panel LH
R–G J24 A , J25 B
6 2L
6
RCTY
6 A RX
4 2I
W–B
ID
W–B
W–B A B
1
2
B
B
9 2C
12
KSW
15 B UL1
U1 UNLOCK WARNING SW
J11 JUNCTION CONNECTOR
1 B
E
14 B L1
L–B
A
W–B
7. 5A ECU–B R–G
F
F
9 B
B
18 A LSR
See Door Lock Control System <15–4><15–5><15–6><15–7><15–8>
4
8 2L
13 B
IND
ACT–
16
1 2J
J1 JUNCTION CONNECTOR
J7 JUNCTION CONNECTOR
E2 ENGINE HOOD COURTESY SW
BATTERY
F18 FUSIBLE LINK BLOCK NO. 2
5 2C
30A DOOR
8 2D
15
10 A HR
J27 JUNCTION CONNECTOR
1
5A AM1 IG1 RELAY
8
IG
4 ID2
L–B
3
5
9 2D
B
J26 JUNCTION CONNECTOR
3
Theft D eterrent
B–W
8 2K
W–G
B–W
R–W
2
1
W 1 2H
W–L
3 2B
W–L
R–W
1 D
6 2D
W–L 11 A BDR
D
D
From HORN Relay<12–1>
B–R
LG–B
1 B
ST1
IG1 4 B–Y
ACC
2
B–R
I15 IGNITION SW
2 AM1
1
P ow er S ource
9 2L
M OVERALL ELECTRICAL WIRING DIAGRAM
To Center Cluster SW <2–15>
See Interior Light System <10–2><10–3>
W–B J27 JUNCTION CONNECTOR
R–G
10A GAUGE
7. 5A OBDII
18 PRIUS
P ow er S ource
P ow er W indow
1
3
2
4
B8 A , B9 B BODY ECU
ACC W–G
2 AM1
E 1 B
IG1 4
IG
B 9 B
15
ST1
G–R
L–O
L–W L–W
L–O
G–R
4 BB1
5 BA1
3 BA1
4 BA1
U 5
4
6
1
PCT
SU
SD
D
2
U 5
1 BA1
D
2
Y
2 1 M P13 POWER WINDOW MOTOR REAR RH
E 3 W–B
Y
1 BB1 W–B
1 2 M P12 POWER WINDOW MOTOR REAR LH
W–B
Cowl side panel RH
E 3 W–B
W–B
IG
2 1 M P11 POWER WINDOW MOTOR FRONT RH J17 JUNCTION CONNECTOR A W–B
SD
D
2
Y
W–B 1 IQ1
A
U 5
1
SU
P7 POWER WINDOW CONTROL SW REAR LH G G–R
E 3
6
PCT
L–O
E
4
L–W
SD
W–B
P10 POWER WINDOW MOTOR FRONT LH
3 BB1
P8 POWER WINDOW CONTROL SW REAR RH G B–W
1
SU
1
To Diode (Door Courtesy) <10–2>
B–W
6
PCT
W–B
2
4 MPX1
9 R–Y
W–B Cowl side panel LH
B–W
DCTY 16
5 BB1
W
DU
Y
5
18
IG
8 G
4
DON 20
O
P–L
GR
120A MAIN
ID
1 2L
W
SGND 11
M
W–B
2 2L
L–W
LMT 13
4
5 IN1
R–W
PLS 12
B
L–W
1
Y
2 WLSW
7 IN1
5 IG1
R–L
W–R
B–L
B–G
P9 POWER WINDOW MASTER SW
5 CPUB
8 IC1
P6 POWER WINDOW CONTROL SW FRONT RH G G–B
3 IC1
1 IC1
A
5 2K
Y
R–L
W–R
B–L
L–Y
J11 JUNCTION CONNECTOR
10 2J
L–W
C
G–B
W–B
L–Y
2 IC1
3
RLD
7 IB1
R–W
11 2J
3 IQ1 1 IG1
A
10
W
A A L–W
7 2K L–W
F18 FUSIBLE LINK BLOCK NO. 2
5
J14 A , J15 B
A A L–W
3 2I
1
BATTERY
C B
3 J20 JUNCTION CONNECTOR
8 2K
C B
JUNCTION CONNECTOR
2
10 2K
C C B
RLU
1
L–W
L–W
3
5
R–L
2
1
20A PWR1
IG1 RELAY
B A
RRU
See Interior Light System <10–2>
7. 5A ECU–B
30A POWER
J24 A , J25 B
1 D
F11 B , F12 C , F13 D
100A DC/DC
FUSIBLE LINK BLOCK NO. 1
1 C
5
POWER RELAY
L–Y
JUNCTION CONNECTOR
B
1 B
10A GAUGE 2
1
RRD
14
5 2C
4 2D
2 1B
W
2002 PRIUS (EWD464U)
15A DOME
1 2K
FLD 2 A G–B
1 2H 8 2D
5A AM1
2 2G
FLU 3 A
3
R–W
R–G
1 7 1J
DCTY
W–B
W
W–G
B–Y
6 2D 3 2B
L–Y
RX 6 A
Y
R–G I15 IGNITION SW
J27 JUNCTION CONNECTOR F F
BI
Left side of rear pillar
M
19 PRIUS
W
W
2002 PRIUS (EWD464U)
30A ABS NO. 2 W–B W–B
B–G
120A MAIN ID
A
6
3
3
3
14 IA2
B–W IH
6 2B
Right kick panel
B–L
R
BR
Cowl side panel LH
J11 JUNCTION CONNECTOR
4
1
3
3
1
Y–B
BATTERY
F18 FUSIBLE LINK BLOCK NO. 2
2
2
4
3
2
2
1
2
Y–G
1
B
G
FUSIBLE LINK BLOCK NO. 1
2
4
HYDRO MTR NO. 1 RELAY LG–R
1 D
15A AM2
F10 A , F11 B , F12 C , F13 D
2
3
2
ABS SOL RELAY
100A DC/DC
20A ABS NO. 3 8 2K
5A AM1
1 C
W–R 3
1
W–L
2
IG1 RELAY
2
B
W–R
W–G Y–B
Y–B
3 W–R
2
L–O
2
40A ABS NO. 1
1 2G
2 2I
Y–B
1 B
9 1J
5
5 2A
2 10A ABS NO. 4
2 1B
B–Y 1
W–G
2 2C
1 2H
W
3 2B
L
6 2D
B–Y
ST2
IG2 6
1
3
7 2A
L
14 A
9 A
1 IP1
2 IP1
COMBINATION METER
C10 A , C11 B
22 A 10 A
L
I15 IGNITION SW
7 AM2
ST1
IG1 4
ACC
3
4
L ABS
1 A
B
L
1
W–L
2
2 AM1
3
W
6 1K
2
ABS
L
4 1K
1
P ow er S ource
3 B
2 B
G–W
G
Y–G
L–O
LG–R
Y–B
B–L
GR
GR–B
R
V–R
B–W
L
B–W
B–Y
O
N
M
L
K
J
I
H
G
F
E
D
C
B
A
(Cont. next page)
M OVERALL ELECTRICAL WIRING DIAGRAM
BRAKE L
HYDRO MTR NO. 2 RELAY
G–W
5A ECU–IG
10A GAUGE
19 PRIUS (Cont’ d)
(Cont. next page)
ABS A B
C D E
7
6
8
B–Y
A
L B–W 1 B
V–R
9 C
5 C
10 C
2 B
12 C
3 B
4 C
11 C
3 C
6 C
2 C
8 C
1 C
7 C
B1 A , B2 B , B3 C BRAKE ACTUATOR
R
F
5
B–Y B–W
R B–W
B8 A V
3 A SMC2
P
4 A SMC1
LG
9 A SRRR
L
G–B
8 A SRRH
B–O
G–W
7 A SFLR
G–O
R–L
21 A SFLH
6 D AST
1 D SLA+
8 D SLA–
16 D SLR+
7 D SLR–
2 2K
GR
B–W
SR 19 A
R1+ 7 B
MR1 29 A
R2+ 3 D
MR2 2 D
GND1
GND2
31 A
MTT
6 A
MT+
27 A
MT–
28 A
18 A
5 A SS
PH 11 A
PL 9 D
LBL
R–Y
6 A
1 A
R–Y
3 A
5 B
1
Y–G
2 A
1 B
4 A
W–B
Cowl side panel LH
W–B
IE
W–B
A
A J7 JUNCTION CONNECTOR
A
W–B
J11 JUNCTION CONNECTOR
A A
W–B
A
4 B
W–B
W–B
J1 JUNCTION CONNECTOR
1
W–B
G–W
5 A
W–B
G–W
2 B
W–B
G W–B
G
E A
E B
E B
J12 A , J13 B
LG–R L–O
E A
JUNCTION CONNECTOR
HYDRAULIC BOOSTER
W–B
O
H5 A , H6 B
Y–B
W–B
N
B–L
R–Y From Multi Display<14–7> From Daytime R–Y Running Light Relay P2 <4–4> PARKING BRAKE SW
L M
18 IA2
R–Y
K
PKB 13 C
W–B
3 B
B4 BRAKE FLUID LEVEL WARNING SW
I
GND4 17 B
W–B
LG–R
4
2
J
GND3 8 B
7 C
Y–R
GR
Y
Y–G
W–L
W–B
W–B
Y–G
L–O
LG–R
Y–B
MP2+
MPX+
11
1 C IG2
GR–B
A7 A/C AMPLIFIER
22 D +BS
B10 A , B11 B , B12 C , B13 D
B–L
4
18 B WA
L
MPD1
2 B SP1
BRAKE ECU G1 GATEWAY ECU
MPD2
5 B BRL
B–W
GR–L 11
V–R
14
R–Y
MPX1
E10 ENGINE CONTROL MODULE
2002 PRIUS (EWD464U)
2 A SFRR
12 2G
MPX2
GR
1 A SFRH
4
GR–B
13
H
R–Y
16 A
R–G
15 A G
Y–B
MPX–
R–W
MPX+
R–B
5 2B
BODY ECU
A A
ID
W–B
B
Cowl side panel LH
M
A
R
W
B HVO– 22 B
FL+ 16 A
1
FSS 24 A
FR+ 14 A
1
20 D ERR
(Shielded)
J10 JUNCTION CONNECTOR
2002 PRIUS (EWD464U) 5 IB1
19 B
RL+
(Shielded)
V
(Shielded)
20 B
RL–
2
P
P
R
A23 ABS SPEED SENSOR REAR LH
21 B
RSS
10 B D/G
3 B TC
2 IB1
P
L
1 IB1
1
19 D SG4
L
A5 ABS SPEED SENSOR FRONT RH
2
FR– 13 A
13 D PRR
4 B TS
RR+ 11 B
1
1 B STP
RR–
2
12 B
A24 ABS SPEED SENSOR REAR RH
Y
A4 ABS SPEED SENSOR FRONT LH
2
FL– 15 A
5 D VRR
2 A
2
E B
D A
12
13 IA2
1
20 C BZ
E B
23 B
RRO
6 B IG1
B
W–B
(Shielded)
W–B
B
A
R
HVO+
(Shielded)
14 B
B
W–B
HVI–
R
BRAKE ECU
(Shielded) 18 C SG3
B
27 C EFR
W P–B
16 B
28 C PFR
6 A
(Shielded)
W–L
HVI+
W
9 C VFR
10 A
R
15 C SG2
3 A
(Shielded)
24 C EREG
7 A
GR–G
24 B
25 C PREG
11 A
To Data Link Connector 3 <2–5><2–6> G–W
B10 A , B11 B , B12 C , B13 D
W
16 C VREG
4 A
From Stop Light SW <3–4>
G
12 A SG1
8 A
B–Y
G
23 A E2
12 A
11
B14 BRAKE WARNING BUZZER
A
1 A
B1 A , B2 B , B3 C BRAKE ACTUATOR
10
BUZZER
22 A PMC
5 A
9
B–Y
10 A VCM
9 A
B–Y
ABS
B–Y
B
A
19 PRIUS (Cont’ d)
J14 A , J15 B
15 B
RLO
JUNCTION CONNECTOR
M OVERALL ELECTRICAL WIRING DIAGRAM
W To EMPS ECU <20–4>
(Shielded) BR
BR–B
(Shielded)
L
BR
G
(Shielded) (Shielded)
R
G
To Hybrid Vehicle Control ECU <1–19><1–20>
LG
W–B
20 PRIUS
P ow er S ource
EM PS
1
2
3
W
4
3
ACC 1 IG1 4
L
W–G
2 AM1
50A EMPS
ST1 R–G
L
B–Y
22
2 3
3 2B
1 2H
2 2I
5 2A
6 2G B–R
To Data Link Connector 3 <2–5><2–6> GR–G
P–B
W–L
Y 7 D
1 C
RLY
B–Y
3 IP1
B
W–B
2 D 7 2A
Y
1 IM1
GR
8 2K
1 B
B–Y
7 IA2
L
W
1 A
B
GR
3
M 2
L
L
2
E B
3
1
D1 DC MOTOR
11
5 3
IG1 RELAY
W
2002 PRIUS (EWD464U)
5
D A
J14 A , J15 B
14
EMPS RELAY 2
1
3 3
JUNCTION CONNECTOR
7. 5A ECU–B
10A GAUGE
5A ECU–IG
5A AM1
3 1
B–Y
C10 COMBINATION METER
6 2D
W
W–G
B–Y
I15 IGNITION SW
PIG
5 D
WL
1 B
IG
2 B
M1
1 D
M2
SIL
3 D
9 D
TC
TS
F10 A , F11 B , F13 D
EMPS ECU
W–B
1 4
VT2
GND
A B
A B
Right kick panel
WRL 10 D
From Brake ECU <19–12>
IH
W–B
W–B Cowl side panel LH
A W–B
J18 A , J19 B
3
VT1
A A
J11 JUNCTION CONNECTOR ID
1
S1 STEERING SHAFT TORQUE SENSOR
A BATTERY
2 VCC
W–B
JUNCTION CONNECTOR
BR
120A MAIN
F18 FUSIBLE LINK BLOCK NO. 2
5 IO1
WRR 4 D
(Shielded)
TRQG 3 A
W
TRQ2 2 A
(Shielded)
TRQ1 4 A
W
W–B
B–G
(Shielded)
1 D
TRQV 1 A
B
PGND 2 C
G
6 2B
R
FUSIBLE LINK BLOCK NO. 1
B
100A DC/DC
E3 A , E4 B , E5 C , E6 D
J17 JUNCTION CONNECTOR
A
IG
Cowl side panel RH
M
B–W
B
W
2002 PRIUS (EWD464U) Y–B
100A DC/DC Y–G
Y–R
Y–B
W–B
B–G
120A MAIN
A20 AIRBAG SQUIB (Front Passenger Airbag Assembly)
S6 SIDE AIRBAG SQUIB LH
2
1
S7 SIDE AIRBAG SQUIB RH
2
Y–R (*1) 1
SFL– 5 A
Y–G (*1)
SSR–
SSR+
2
F2 FRONT AIRBAG SENSOR RH
1
2
F1 FRONT AIRBAG SENSOR LH
1
2 IL1
1 IL1
4 IL1
3 IL1
Right kick panel
7 C
9 C
–SL 26 B
VUPR
12 C
+SL 15 B
ESL
9 A
–SR 20 B
SSL–
12 A
+SR 9 B
SSL+
10 A
B–W
Y
A21 AIRBAG SQUIB (Steering Wheel Pad)
2
SFR+ 1 C
SFR– 2 C
Y–G (*1)
SFL+ 6 A
AIRBAG SENSOR ASSEMBLY
Y–R (*1)
BR–W
P15 PRETENSIONER RH
1
P– 11 B
VUPL
7 A
A17 A , A18 B , A19 C
LA
3 B
B–W
SPIRAL CABLE
2
P+ 10 B
TC
SIL
BR–W
W–R
P14 PRETENSIONER LH
1
Y 2
Y–B
1
Y
2
1
D– 13 B
19 B
12 B
W–R
BR
W–B ID
A
W–B
E1 27 B
ESR
10 C
W–B IH
W–B
Cowl side panel LH
J11 JUNCTION CONNECTOR
GR GSW2
6 2B
7 2A
L
BATTERY
10A SRS ACC
F18 FUSIBLE LINK BLOCK NO. 2
10A ACC D+ 14 B
B–O
PR– 6 C
G–O
PR+ 5 C
To Buckle SW LH <9–3>
PL– 1 A
G–O
PL+ 2 A
From Buckle SW RH <9–3>
BR
1
F11 B , F12 C , F13 D
L
FUSIBLE LINK BLOCK NO. 1
To Hybrid Vehicle Control ECU<1–20> 23 B
W
RBE+
W
8 C
P–B
LBE+
B–Y
11 A
4
3
2
1
4
3
2
S5 SIDE AIRBAG SENSOR RH
1
S4 SIDE AIRBAG SENSOR LH
P–L (*1)
IG2
1 2E
9 2A
C10 A , C11 B SRS WARNING LIGHT [COMB. METER]
L
L–W (*1)
5 B
4 2B
16 A
14 A
LG–B (*1)
ACC
P–B
6 B
5 B
To Data Link Connector 3 <2–5><2–6>
GR–R
GR–L (*1)
E2
2 2E
B
J26 JUNCTION CONNECTOR
B
P (*1)
28 B
4 2E
JUNCTION CONNECTOR
GR–R
4
* 1 : w/ Side Airbags
L–Y (*1)
1 D
W–R 5 2B
B–W
LG (*1)
1 C
5A AM1 3 2E
3
2
2 2D
C B
J27 A , J28 B
C A
3
B–Y
GR (*1)
1 B
8 2K
5
1
8 2C
2
SRS
L
2 1B
15A AM2
1 2H
ACC RELAY
9 1J
3 2B
W–G
1 2G
P–L
W
ST2
IG2 6
ST1
IG1
ACC 3
P–L
I15 IGNITION SW
W–R 7 AM2
W–G 2 AM1
1
P ow er S ource
GR–R
2 2C
21 PRIUS
M OVERALL ELECTRICAL WIRING DIAGRAM BR
22 PRIUS
P ow er S ource
R ear W indow D efogge r
1
R ad iator F an and C ondens er Fan
2
3
W
4 B–Y
4 1J
3 1B W–G
ACC 2 AM1
GR–B
IG1 4
1
1 2H
4 2M
30A RDI
7 2G
13
2 5
3
2
1
40A DEF
5A AM1
DEF RELAY
1
5
4
3 5
3
FAN NO. 1 RELAY
1
30A CDS FAN
3 2B
B–Y
6 2D
B8 A
DFG
BODY ECU
15 A MPX+
B
W
W–G
I15 IGNITION SW
B–Y
ST1
2
1
FAN NO. 2 RELAY 5
FAN NO. 3 RELAY
2
3
2
1
2
5 7 1K
7 IE1
To A/C Amplifier <24–6>
V–Y
M 2
V–Y
V–Y J27 A , J28 B
JUNCTION CONNECTOR
E A
E A
A B V–Y
11
A
MPX+
N4 NOISE FILTER (Rear Window Defogger) SW RDEF
A
11 IE1
V–Y
PSG
J7 JUNCTION CONNECTOR
A
W–B
ID
1
A W–B
W–B
Cowl side panel LH
3
3
A7 A/C AMPLIFIER
J11 JUNCTION CONNECTOR
MPX–
To A/C Amplifier <24–7>
C11 COMBINATION METER
REAR WINDOW DEFOGGER SW
A
W–B
BATTERY
MPX+
12 1J
2
W–B
120A MAIN
F18 FUSIBLE LINK BLOCK NO. 2
2
GR
REAR WINDOW DEFOGGER
1
W–B
5 1K G–W
B–G
1
6 IE1
W–G
GR–B
B
1 D
A3 A/C SINGLE PRESSURE SW
W–B
100A DC/DC
F11 B , F13 D FUSIBLE LINK BLOCK NO. 1
2 1K
A1 A/C CONDENSER FAN MOTOR
1 B
10 1J
R–W
8 2K
L–W
1
5 1J
To Engine Control Module<2–13>
M
R1 RADIATOR FAN MOTOR
2
11 1A
LG
W–B
L–W
5A ECU–IG
10A GAUGE
3
3 1K
R–W
IG1 RELAY
2
W
W
2002 PRIUS (EWD464U)
1
2 A J1 JUNCTION CONNECTOR Cowl side panel LH
W4 WATER TEMP. SW IE
1 W–B
M
23 PRIUS
L
W–G
W
L–Y
B
100A DC/DC
15A DOME
2002 PRIUS (EWD464U)
1
B–G
W–B
120A MAIN 6 2B
TC
1
1 A
7 B
6 B
9 A
1 B
See Back–Up Light System<6–3>
BR
W–B IH
L
H8 ODO/TRIP SW [HAZARD WARNING SW] Right kick panel
5 ODO
3
L E
3 A
See ABS System <19–4>
Cowl side panel LH
J11 JUNCTION CONNECTOR
L 7 2A
2 A
L
ID
A
14 A
From Navigation ECU<14–5>
BATTERY
F18 FUSIBLE LINK BLOCK NO. 2
5A AM1
1 D
L
F11 B , F12 C , F13 D
L
FUSIBLE LINK BLOCK NO. 1
L
8 2K
L 11 A
13 A 22 A 21 A 20 A 12 A
L
1 B
5 IP1
5
6
BUZZER
FUEL SENDER
1
COMBINATION METER
C10 A , C11 B
SENSOR
L–R
3
4 IP1
L–Y
IG1 RELAY
6 2A
MPX+ 15 A
FU– 19
6 2J 8 2J 9 2J
Y
1 C
B–Y Y–B
2 1B
W–G VFD
V–W
5
W JUNCTION CONNECTOR
8
FU+ 11
16 A MPX–
BR–R BR–R
2 B
F16 FUEL SENDER
2
1
R–G 5 2A
J27 JUNCTION CONNECTOR
5 2C
L
1 2H
4
L–W
BODY ECU
3 2B
V–W 7 2B
L–Y
Y
6 2D
G A
20
FUA
9 B B
Y–B
I15 IGNITION SW
G B
V–W
G A
J27 A , J28 B
G B
V–W
From Multi Display <14–7>
R–G
GR–B
7 1J
IG1 4
From Hybrid Vehicle Control ECU<1–19> From Engine Control Module<2–13>
G V–W A
3 B8 A , B9 B
ST1
2
4
MPD2
MPX1
3 B
GR
11
MPX+
MP2+
4
4
MPD1
11
14
MPX2
GR–L 13
E10 ENGINE CONTROL MODULE
GR
GR–B
2 2G
2 AM1
ACC
F
F
R–G
C ombination M eter
G1 GATEWAY ECU
4 2A
1
P ow er S ource
(Cont. next page)
M OVERALL ELECTRICAL WIRING DIAGRAM A7 A/C AMPLIFIER HEAD
DOOR
See EMPS System <20–4>
See Illumination System<8–4>
10A GAUGE
7. 5A ECU–B
23 PRIUS (Cont’ d)
C ombination M eter
17 A 18 A 19 A 5 B
See Headlight System <3–3><4–4>
See Turn Signal Light System<5–4>
See SRS System <21–3>
HIGH BEAM
TURN R
TURN L
SRS
ABS
MALFUNCTION INDICATOR LAMP
SEAT BELT (Front Passenger’ s Seat)
WATER TEMP. (High)
WATER TEMP. (Low)
CRUISE
OUTPUT CONTROL
CHARGE
OIL
SEAT BELT (Driver’ s Seat)
BRAKE
2002 PRIUS (EWD464U)
16 A 10 A 4 B C10 A , C11 B
8 7 6 5
COMBINATION METER
See SRS System <21–3>
See ABS System <19–4>
See Engine Control System<2–4>
M
24 PRIUS
30A HTR2
W
30A HTR1
W
2002 PRIUS (EWD464U) B–R
B–W
100A DC/DC
B–G
120A MAIN Cowl side panel LH
W–B
1
A
W2 WATER PUMP MOTOR (A/C)
W–B IE
A
L–R
L
M
A
W–B
A
4
3
2
W–B
W–B
J7 JUNCTION CONNECTOR
A
1 W–B
J1 JUNCTION CONNECTOR
V GND
3
5
A/C W/P RELAY
B7 BLOWER MOTOR LINEAR CONTROLLER
J6 JUNCTION CONNECTOR W–B ID
A
J6 A (*1) JUNCTION B (*2) CONNECTOR
A (*1) B (*2)
Cowl side panel LH
J11 JUNCTION CONNECTOR
13 IE1
R
BATTERY
F18 FUSIBLE LINK BLOCK NO. 2
B–R 2
R
SI
LG–R
3
A B
R
+B
4
R
2
W–B
L–Y
R
3 2D
A B
C A
R
VM
3
3
8 2K
JUNCTION CONNECTOR
J22 A , J23 B
C A
R
8 2D
LG–R
10 B
MGC
+B
8 IE1
BLW 3 A
PSW 11 B
1 A
IG
A7 A , A8 B , A9 C A/C AMPLIFIER
WP 3 B
20 IE1
15 IE1
21 IE1
GND
A A
A B
7 A
L–O
R–L
G
B–L
J24 A , J25 B
1
1
B–L 3
R
3 1K
8 A
F
B–R(*3) G–W(*3)
JUNCTION CONNECTOR W–B W–B
1
50A HTR3 R
4 1F
10A HTR
J27 JUNCTION CONNECTOR
4
* 1 : w/ Daytime Running Light * 2 : w/o Daytime Running Light * 3 : Cold Area Spec.
V
C (*1) A (*2)
C (*1) A (*2)
V
3 1F
3
2
IG1 RELAY
LG–R
L–Y
B6 M BLOWER MOTOR 2
1
A B
J2 A , J3 B JUNCTION CONNECTOR
5 1A
2
F
V
FUSIBLE LINK BLOCK NO. 1
50A HTR
F10 A , F11 B , F13 D
A A
B–R
L–Y
1 A
W
A A
13 1J
L–O
R
L–R
1 D
3
1
8 1K
3
5
5 2C
7. 5A ECU–B
L–R
1 B
B–R (*3) 1
5A AM1
3 1B
1
3
CLR MG RELAY
8 2G
1 2H
10A GAUGE
1
2
2
HTR RELAY
1
6 2D 3 2B
R–G
1
G–W (*3)
2
4
5
I15 IGNITION SW
B–Y
R–G
2
G
3
5
ST1
IG1 4
ACC
W–G
1
2 AM1
3
W
3
2
W–G
2
A ir C onditioning
R–L
3
1
P ow er S ourc e
F
E
D
C
B
A
(Cont. next page)
M OVERALL ELECTRICAL WIRING DIAGRAM
W–B
A3 A/C DUAL PRESSURE SW
24 PRIUS (Cont’ d)
(Cont. next page)
A ir C onditioning
5 A B C D
* 3 : Cold Area Spec.
7
6
8
B–R(*3)
B–R(*3)
G–W(*3)
G–W(*3)
G
G
R–L
R–L
A B C D
B8 A BODY ECU MPX+ 15 A
MPX– 16 A 5 IA2
W–G
11
MPX+ MPX–
MPD2
C11 COMBINATION METER
3
E2
22 D
E 8 B , E 9 C , E10 D
SGTPI 20 C
S5TPI 18 C
TPI 19 C
AIF 22 C
AIR 21 C
4 C
RF
TR
3 C
1 C
SGTR
S5TP 17 C
TE
SGTP 15 C
TP 16 C
W
TS
1 B
W
ACT
5 C
1
W
5 B
W
BR–W
2 C SGTE
AMC 14 C
AMH 13 C
W
W
W
W
W
W
W
W
W
W
W
6 II1 2
9 II1
10 II1
BR–R
L
Y–R
1
7 II1
BR–Y
W–R
A11 A/C SOLAR SENSOR
8 II1
BR–W
4
2
2
1 2 IK1
BR
1 1
A6 AMBIENT TEMP. SENSOR
ENGINE CONTROL MODULE
18 B
W
From Converter <1–13>
From FAN NO. 3 Relay <22–4>
BR–W 5 IK1
W–L
F
B–L
S5TS 6 C
ACT
1
5 IE1
W–L 4 IK1
IDH 10 A
Y
4 IE1
V–Y
BR–W
W–L
A/C AMPLIFIER
CF 2 B
NE
2
23 C TAM
R–W
SGLOCK 18 B
4 B
MP2+
13 D MPX2
P–G
LOCK 9 B
LG
GR–B
GR
2002 PRIUS (EWD464U)
4 A
MPX+
NEO 3 D
4
11 A
A7 A , A8 B , A9 C
G1 GATEWAY ECU
MPD1
14 D MPX1
W–G
A12 A/C THERMISTOR
2
L–O
GR
E
GR–L
A10 A/C ROOM TEMP. SENSOR
GR–B
6 2F
From FAN NO. 1 and FAN NO. 2 Relay<22–4>
HRLY 18
2
3
4
5
1
2
3
4
5
2
A2 A/C MAGNETIC CLUTCH AND LOCK SENSOR
M
A14 AIR INLET CONTROL SERVO MOTOR
M
A15 AIR MIX CONTROL SERVO MOTOR
M
D
C
B
A
W
W
W
2002 PRIUS (EWD464U)
3
W
2
5
HTRO 13 B
HTR2
LED LED RDEF FULL A/C
6 B
LED F/R
P–B (*3)
P
R
GR–L
BR–W
W
16 IE1
P–B (*3)
3
ID
A
Cowl side panel LH
A
5 IA1
1 IA1
2 B
1 B
4 B
3 B
P–B (*3)
W–B (*3)
W–B
Y–B Cowl side panel LH
J1 JUNCTION CONNECTOR
5 3
2
HTR2 RELAY
W–B (*3)
IE
A
2 A
1 A
3
5 3
18 IE1
2
3
R–L (*3)
W–B (*3)
M
4
A/C AMPLIFIER
LED A/C
HTR3 RELAY
3
3 1
L–Y (*3)
1
W
1 II1
PIG
A7 A , A8 B , A9 C
SW SW RDEF FULL A/C
3
P
2 II1
AOD
11 C
SW F/R
R–L
4 II1
AOF
10 C
SW A/C
3
L–R
3 II1
TPM
8 C
PSG
3
R–L (*3)
11
P–B (*3)
5 II1
9 C
SGTPM
MSET PIG5
1
G
7 C
TSET
10
G–W (*3) W–B (*3)
A16 AIR VENT MODE CONTROL SERVO MOTOR
BSET
9
A ir C ondition ing
J11 JUNCTION CONNECTOR
PTC HEATER
P3 A , P4 B
G–R (*3)
5
2 3
3
3 1
3
3
B–R (*3)
S5TPM
R–L
G
G–W(*3)
B–R(*3)
24 PRIUS (Cont’ d)
HTR1 RELAY
12
* 3 : Cold Area Spec.
M OVERALL ELECTRICAL WIRING DIAGRAM