Elara Electric Equipments Position Figure

1．Vehicle Ele ctric Equipment Distributing Figure …………………………………………………………………………………………………………… ………2 2．Figure Rea ding Description…………………………………………………………… …………………………… ………………………………………………3 3．Connector Note………………………………… ……………………………………… ……………………………………………………………………………5 4．Position of Front Engine Compartment Electric Equipment……………………………………………………………………………………………… ………7 5．Position of Four Doors Electric Equipment………………………………… ……………………………………… ……………………………………… ………8 6．Position of Instrume nt Electr ic Equipment…………………………………………………………………………………………………………………………9 7．Position of Trunk Electric Equipment………… …………………………… …………………………… ………………………………………………………10 8．Starting and Charging System …………………………………………………………………………… ………………………………………………………11 9．ECU System ……… ………… ……………………………………………… …………………………… ………………………………………………………13 10．ABS System……… ………………… ……………………………………………………………………………………………………………………………22 11．Airbag System …………………………………………………………………………………………… ………………………………………………………23 12．Auto A/C System… ………… ………………………………………………………………………………………………………… …………………………24 13．Manual A /C System……………………………………………………………………………………… ………………………………………………………26 14．Front ISU System ………… ……………………………………… ………………………………………………………………………………………………27 15．Rear ISU System… ………… …………………………………………………………………………… ………………………………………………………33 16．Instrument System …………………………………………………………………………………………………………………………………………………36 17．Wiper System…… ……………………………………………………………………………… …………………………………………………………………37 18．Power Re ar View Mirror System……………………………………………………………………………………………………… …………………………38 19．Power Window of Front Door & Pow er Door Lock System……………… ……………………………………………………………………………………39 20．Electric S eat Syste m……… …………………………………………………………………………………………………………… …………………………40 21．Seat Heater System………… ……………………………………………… ……………………………………………………………………………………42 22．Audio System…… …………………………… …………………………… ……………………………………………………………………………………43 23．Sun roof & Cigarette Lighte r System …………………………………………………………………… …………………………… …………………………44 24．Circuit of the Front Engine Compartment Fuse Box……………………… …………………………… ………………………………………………………45 Note：This circuit manual is based on 484model,if there are any incompatibilities please refer to the vehicle.

1

Figu re reading descript ion

1．Instruction of Main Circuit Symbols

Wi rin g jo in t

Connector

2．Distribution of Various Earth points and Main Modules

Gro und

G7 G4 ABS

G11

G5 H eater

M otor

+

ECU

Oxy gen Senso r

G9

_

G2 G8

Spir al Cable

Spea ker

G10

E le ct rom agne tic co il

G3

G1 G6

R es is tan c e u n it

S w i tc h co nt ro l

LE D

ZE10

3．PIN Definition Explanation Relay

S hi el d

The PIN definition of the circuit theory diagram：For instance as follows:

F U SF 7 10A

F us e p o siti on a n d sp e ci fi ca tion

Ignition Coil

Brak e Sw itch

Co nnector D8

D7

D6

C 12 C 11 C 10 C 9 B1 2 B11 B1 0 B9

30

M

5 7 75 15 50 Ignition s witch

Co n nector de tailed exp lication

Ins trument ha rn ess and indoor ha rness（fro nt）

C i garette Lighte r

A8

Sta rte r

_

+

A7

A6

D5 C8 B8

C7 B7 A5

D4 C6 B6 A4

D3 C5 B5

C4 B4 A3

D2 C3 B3 A2

D1 C2 B2

C1 B1

A1

IP 1

Co n nector de tailed exp lication PIN de tailed e xplication Co n nector na me

“To IP A/5” indicates “to #5 PIN of plug A of IP Module” “To ECU5” indicates“to #5 PIN of ECU”

Noz zle

Bu lb

Ba tter y

3

Figu re reading descript ion

1．Instruction of Main Circuit Symbols

Wi rin g jo in t

Connector

2．Distribution of Various Earth points and Main Modules

Gro und

G7 G4 ABS

G11

G5 H eater

M otor

+

ECU

Oxy gen Senso r

G9

_

G2 G8

Spir al Cable

Spea ker

G10

E le ct rom agne tic co il

G3

G1 G6

R es is tan c e u n it

S w i tc h co nt ro l

LE D

ZE10

3．PIN Definition Explanation Relay

S hi el d

The PIN definition of the circuit theory diagram：For instance as follows:

F U SF 7 10A

F us e p o siti on a n d sp e ci fi ca tion

Ignition Coil

Brak e Sw itch

Co nnector D8

D7

D6

C 12 C 11 C 10 C 9 B1 2 B11 B1 0 B9

30

M

5 7 75 15 50 Ignition s witch

Co n nector de tailed exp lication

Ins trument ha rn ess and indoor ha rness（fro nt）

C i garette Lighte r

A8

Sta rte r

_

+

A7

A6

D5 C8 B8

C7 B7 A5

D4 C6 B6 A4

D3 C5 B5

C4 B4 A3

D2 C3 B3 A2

D1 C2 B2

C1 B1

A1

IP 1

Co n nector de tailed exp lication PIN de tailed e xplication Co n nector na me

“To IP A/5” indicates “to #5 PIN of plug A of IP Module” “To ECU5” indicates“to #5 PIN of ECU”

Noz zle

Bu lb

Ba tter y

3

4. Number o f main c ircuit bo ard

31: Ground Wire

7. Notes to connector terminals for front and rear ISU Front ISU PE1 is port A, PE2 is port B, PP3 is port C,PP4 is port D, PP5 is port E, PP6 is port F. Rear ISU PE1 is port A, PP3 is port B, PP5 is port C, PP6 is port D.

}

with in relay box 30：From the battery 15：Ignition Switch IGN ACC1: Ignition Switch ACC ( To Mainly Provide The Air-Conditioning System With Power） ACC2: Ignition Switch ACC（To Provide The Wiper System, Cigarette Light, and External Power Supply Socket With Power） ILLUM: Luminous Power Line

30 15 ACC1 ACC2 31 ILLUM

6 . Groun d points on the v ehicle ( actual 9

l ines sha ll prevail). 1st. Negative of the battery 7th pin. Near

9

B 8

5．Fuse Numb er The f use numbe r within th e front com partment relay box is exp ressed by “FB +number”and“SB+ number”. “FB +number”is small fu se “SB +number”is big fuse

LEFT

DOWN

LEF T

L19 0

7

1

UP DOWN

RIGHT

RIGHT

the left rear speaker 2nd. Near the right combination headlamp 8th. Near the left pillar A 3nd. Engine hood Ground 9th pin. Near the handbrake 4th. Near the ABS 10th. Near the clutch 5th. Near the steering column 11th#. Near the front right speaker 6th. Near the rear seat belt

FB2 7.5A

UP

Power Rear View Mirror Switch

8. The colors of the wire are as follow:：

RH MIRRO R

RH M IR ROR

LH MRR OR

B=B lack

LH M IR ROR

W=W hite To F ron t ISU P P3 16#

4

2

5

3

6

G=G reen

W/B

LG

R

R

R

R=R ed

Front Gr ound/ Fron Lef t t/ 15

V=Violet

Front Ground /Front Left /13

Y=Yellow

Front Gr ound/ Front Right /14

P=Pi nk

Actuator /control signal

Br=B rown Front G round/Front Ri ght / 15 Front Ground/ Front Right /13

Gr=G rey

Sensor/feedback signal

O=O range

Front Ground/ Front Left /14

Lg=L ight G reen

Front G round/Front Left 1/ 14

Sb=L ivid

9.Note

10. Not es to plu g-in un it

This circuit diagram is mainly designed to provide reference for model 2.0/1.6

LR

automatic basic configuration type.As limited time is likely to give rise to international.

UD

M

M

M Rear Right View Mirror

LR

M UD

9

4

Elec tric equipments pow er/circuit power supply

R ear Left View Mi rror

For example: Front ground/front Left/13 means the No.13 terminal for front ground harness and front Left compartment harness connectors. (Perform lookup according to the notes to connectors)

Engine control unit pin description

Connector Note Pin

ECU plug-in unit

1

2 62 61 60 59 58 57 56 55 54 53 52 51 50 49 484 7 464 5 44

3 4

Inle t temperature

2 3

Ignition co il 2 Ignition co il to groun d

43 44

Non- Persiste nt power

4

Oxygen se nsor heat ing Ignition co il 1

45

Non- Persiste nt power

46 47 48

Canister purg e valve Inje ction nozz le 3 (the 4 th cylinde r)

10 11

24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6

12 13 14 1

81

2 3

4

5

63

62

44

43

25

24

6

15 16 17 18 19 20 21 22 23 24

ECU and I nstrument Har ness Plug-In Unit

Injection n ozzle 4(th e 2nd cyli nder) Injection n ozzle 2 (t he 3rd cyli nder) Engine sp eed Coolant te mperatur e Fuel cons umption Trouble in dicator Persisten t power Ignition sw itch Main relay Engine sp eed senso r A Pedal acc elerator position sen sor Sensor gr ound 1 Upper oxy gen senso r Knock sen sor A Knock sen sor B Brake lam p Accelerat ing sensor

7 6 5 4 16 15 14 13 12 S

3

2

A H 1 3 4 5 6 7 9 10 11 12 13 14 15 J S

1 J

ECU/A2

ECU/A1

27

2 3 4 10 11 1 2

J

EC U/Front G round

61 62 63 64 65

Injection n ozzle 1(th e 1st cylin der)

68 70

30

71

33 34

H

37 38

S

39 40 41

5 6 7 8 13 14 15 16

59 60

69

35 36 1 9

56 57 58

29

32

A

53 54 55

28

31

Engine and Front Ground Harness Plug-In Unit

51 52

67

26 A

49 50

66

25 H

Connect point

42

8 9

43 42 41 40 39 38 37 36 35 34 33 32 31 30 292 8 272 6 25

5

Pin

Oxygen se nsor heat ing

5 6 7

81 80 79 78 77 76 75 74 73 72 71 70 69 68 676 6 656 4 63

Connect point

1

Fan control 1 Ele ctric groun d 2 Ele ctric groun d 1 Ele ctric thrott le position Low er oxygen sensor

Bra ke switch Veh icle speed signal Mid -pressure switch Pow er ground 1 CAN commun ication Non-continua nce powe r Ele ctric thrott le control Ele ctric thrott le control Ele ctric thrott le control Ele ctric thrott le control Cooling fan A/C relay Fue l pump relay Dia gnose K w ire

EOBD ins pect lamp 5V power 2

72 73

Ant i-theft equ ipment

5V power 1

74 75

Clu tch switch A/C switch Pow er turn sw itch Headlamp sw itch

Engine sp eed senso r (B) Sensor gr ound 3 Sensor gr ound 2 Air flow se nsor Electric th rottle pos ition Engine c oolant t em per ature s ensor Accelera te pedal po sition sen sor A/C pres sure

76 77 78 79 80 81

Sen sor groun d Pha se sensor Pow er ground 2 CAN commun ication

5

ABS plug-in unit 30 30

31

32

2

45

44

18

1

Front Groun d and F ront Right Door Harness Plug-In

Front G round and Ro of Harness Plug-I n Unit

29

3

31

32

44 45 46

H

46 29

18

15

16

A

B

C

D

H

G

F

—

7 6 5 4 16 15 1 4 1 3 12 S

1

2

3

15

A 1 9 J

Front G round/ Fron t Right Door

Front Ground/R oof

17

3 2 11 10

16 17

Front G round and Re ar Ground Harness Plug-In U nit

Instrument and Front Ground Harness Plug-In Unit A A H

D0 8 D8 D7 D6 D5 C1 2 C12 C11 C10 C9 C8 C7 B1 2 B12 B11 B10 B9 B8 B7 A8 A 7 A6 A5 A8

D4 D3 C6 C5 C4 B6 B5 B 4 A4 A 3

D 2 D1 C3 C 2 C 1 B3 B 2 B1 A2 A1

D1 C1 B1 A1

A 1 9 J

Fro nt Gr ound/Instrument

2

H 3 4 5 6 7 8 11 12 13 14 15 16 S

Front Ground/ Instr um ent

B G

C —

D —

Fro nt/Rear

2

3

10

4 11

5 12

6

H 1 9

—

7

8

14

15

2 10

3 11

4 12

5 13

— —

6 14

8 —

4

5

6

7

—

9

10

11

12

13

14

15

—

S

Fro nt/Rear

A 1 —

S

H 2 —

3 11

4 12

5 13

6 14

7 15

J

8 16 S

Front Gr ound/ Left 2

Fr ont G round/Left 1

Rear Ground and Rea r Left Door H arness Plug-In Unit

Inst rument/Air C onditioner

3

Front G round and Front Left Door Harness Plug-In Unit

J 1 —

2

J

A

Instrument and Air Conditioner Plug-In Unit

H 1

Rear Ground and Rear Right Door Harness Plug-In Unit

Front Ground and Front Engine Compartment Har ness Plug-In U nit 8

A 1 8 H

2

3

4

5

6

9

10

11

12

13

G 7 14 P

4

7

6

10

9

3

2

5

—

8

4

7

6

10

9

3

2

5

—

F ront Ground /Front Engi ne Compartment Rear Gr ound/ Rear L eft

6

Rear Grou nd/ Rear Ri ght

P osition of front engine com partme nt electric equ ipment Wiper Mot or

A/C high/low pressure switch

Knock sensor

Fuel injector

High pressu re wire

Ig nition coil

Cam sha ft p osi ti on se nso r

（Only for 2.0L engine）

Coolant temperatur e sensor

Position of wiper motor

Air flow m eter

Positive of power Front e ngine compar t ment electric equipment box

Negat ive of po wer

Front left he ad lamp

Positive fus e box

Tur n Light:

Side Light:

12V 5W

12 V 5W

F/R high beam Head lamp High Be am:12 V 55 W Gene rator

Electric throttle

F/ R low beam Headlamp Lower Beam:12V 55W Front rig ht headlam p

Fan con trol module

Batte ry

7

Posi tion of Four D oors Electric Equipm ent

R/L door win dow reg ulator as sembly

F/L door wind ow regul ator assemb ly

F/R door win dow reg ulator as sembly

Fron t left do or Front right do or

Rear left do or

Rear right doo r

Fro nt left do or lock

R ea r left do or lock

8

R/R door w indow r egulator assemb ly

Rear righ t door l ock

Front right do or lock

Position of instrument electric equipment

Co mbination instrument

Key hole illuminat ion lamp

Horn switc h

Mirror for m ake up

Re ar window heating Switch

Warn ing lamp switch A ssem bly

Front fo g lamp Swi tch

R ear fog lamp Switch

F ront passen ger side airb ag

Electr ic rear view m irror

Ce nter control button

Audio System

ECU（EMS）Engine

Tr unk Switch

Hea dlamp Night lamp adjustin g Switch adjustin g switch

The frontwards and backward s sliding dynamoto r

C wire plug 20

D wire plug 12

The upward s and downwards adj usting dynamotor of the seat rear p art

F gr ound

A w ire plug 32

A/C Control panel assembly

E powe r

B wire plug 32

Front ISU

T he upwards and downwar ds adjusti ng dynam otor of th e seat front part

El ectric seat

Rear seat heating switch

Diagnosis plug

F /R seat heating switch

F/L seat h eating switc h

The installation position of seat heating switch

9

Posi tion of trunk electric equipment

High- mounted brake lamp

Rear left lamp

Re ar right l am p

Turn Light

Back up L ight

Bra ke Lamp/Si de Light Bulbs:12V 21W /5W Rear Fog Light Bulb s:12V 21W

Re ar ISU

10

Re ar Repro ducer

Tail Lamp Assembly

Starting and Charging System Ignition switch：

1．Circuit diagram

1. 1# and 6# pin of ignition switch is the power of battery 30. 2. When the ignition switch is at the ACC position, the 1#、3# pin of ignition switch is

30 15 ACC1 ACC2 31 IL LUM

connected, and ACC1 and ACC2 relay both get electricity. The contact point close, 30th live wire-87# pin of ACC1 relay-30# pin of ACC1 relay-ACC1 wire get electricity; 30th live wire-87# pin of ACC2 relay-30# pin of ACC2 relay-ACC2 wire get electricity. 3. When the ignition switch is at the ON position, the 1#、 3#、 5#pin of ignition

86

30

Relay ACC1

To Fr ont IS U P P 5

86

G5

30

87

85

30

85

87

G 11 To IS U P P3 Plug- In Unit (Control the R adi o)

To Ignition Switch

V/ W

FB 32 FB 31 FB 30 FB 29 F B2 8 40 A 5 0 A 8 0 A 80 A 1 20A

TE RMIN A L POS ITIO N L O CK

3

get electricity at the time, and contact point close, 30th live wire →87# pin of ignition relay→ 30# pin of ignition relay, then the 15th line get electricity.

Instrum ent/Fr ont Gr ound 1/B 1

Y/L

Lg 5

switch → 85# pin of ignition relay→ 86# pin of ignition relay→ 31 ground. The ignition relay

Fu se Bo x G Pl ug-In Un it 15#

Instrum ent/Front G round 1/A 1

Spare

Ign it ion S witch Rel ay

87

Instr ume nt/ Fron t Grou nd 1/D2

To R ear IS U P P 5

FB 33 40 A

switch connected,30th live wire→5Afuse Fb24→6# pin of ignition switch→ 2# pin of ignition 86

Rela y A CC2 85

S eat H eater P ower S upply

switch is connected, and ACC1 and ACC2 wire both get electricity; the 2#、6#pin of ignition

FB24 5A

S B2 3 0A

2

1

Lg 6

4

A CC

Ignitio n sw itch

Position of ignition sw it ch

ON

P osit ive F use Box

S TART

Technical dat a of sta rter

L/R

I gniti on S witch

I nstrum ent/Front G round 1/D 1

To The Fan Speed C on trol M odule

G 12

30

85

Baterry

Sta rt e r Relay 87

Gene rator

RE GUL A TOR

J8

ECU/A2/14 1 IG To instrument 16# D+ To F use Box K Plug -In Unit 7# (Yello w Wire)

2

12V 0.8K w

Ti me of starting

30sec s

Rotate direction

Clockwise from the pinion side

Le ngth of brush

86

B

Voltage Output power

Sta rter

Speciality

Star ter

Temperature

Condition

Guarantee

11V

Less than 55A, mo re than 5000r/ m

Load

9.5V 0.7Kg.m

Less th an 270A, more than 1200 r/m

Br ake

7.7V

3

Figure8-1 Start ing a nd Charg ing System Circuit Diagram

9

N o-Load

M

31

19 m(0.650in)

Gears of pinion wh en starting

Work ing volta ge of electromagnetic swit ch

Less than 600 A, 1.3Kg·m (94scales/fee t)more than M ore than 8 V

11

2．Equipment position figure of starting and charging circuit Ign ition switch relay

Starter motor 30A fuse Sb2

Starter rela y

3．Starting and Charging System Circuit analy se The start ing and charg ing circui t is shown as figure 8-1. The charging system is a system charging t he batter y with the output el ectricity o f the AC generator . When the i gnition s witch is connected, curren t flows into the excitation coil, and the coil is initially powere d. When the engine starts , stator coi l begin to generate electricity , the exci tation coil is powered by the output current of st ator coil. The output power of th e AC gen erator inc reases with the augment of

Ignition s witch 5A fu se Fb24

Front relay box

A CC Rel ay

excitation current. And dec reases wi th the fal l of the current. W hen the battery voltage （ the voltage of the S end of AC gene rator) reaches the adjusting voltage, the exci t ation curr ent is cut off. And when the battery voltage is less than the adjusting volta ge , the v oltage adjustor controls the excitation current t o adjust the output voltage and keep it i nvariableness. 1． Chargin g circuit Gnerator B→ 1#pin of starter→ positive connectio n fuse box FB28battery positive pole→vehic le body gr ound、engine ground → ground line. 2． Starting circuit

Generator

（1）The first grade control circuit P ositive fu se box

When the ignition switch is at the ST posit ion, battery voltage-positive line fuse box 80A fuse Fb29→ 5A fuse Fb24→ 6# pin of ignition switch→ 4# pin of ignition switch→ 85# pin of starter relay→ 86# pin of starter relay→

Tim e for b atterry to take in the charging current un der each voltage: Vo ltage： A： more than 16........4 h B： 14-15.9................. .......8h Batt ery

C： less than 13.9........ ........16h

Notic e for Maintain Ge nerator ： 1.Do n ot mistake the polarit y of IG con nection po le and L co nnection pole. 2.The line between IG conn ection pole and L co nnection pole should not be sho rt circuit, do remember to pass through the charging indicator la mp when connect th em. 3. There should b e no load between th e IG coil an d E pole.

12

31ground line （2） The second gr ade contr ol circuit battery voltage→ posi tive line fuse box 80A fuse Fb29→ 30A fuse Sb2→30# pin of starter relay→ 87# pin of starter relay→2# pin of starterStart suction coil→ starter-ground. 2# pin of starter→keep coil→ ground. （3）Main circuit battery voltage→ posit ive line fuse box 120A fuse Fb28→ 1# pin of starter→ electromagnetic swit ch→starter→ground.

ECU System Circuit 30 15 ACC1 ACC2 31 ILL UM

8 FB15 7.5A

FB5 5A

SB1 30A

86

86

EMS Relay

ECU/A2/9

ECU/A2/12

This Fuse W ire is Within the Positive Fu se Box

FB31 60A

3

30

86

30

Fuel Pump Relay

87

85

85

87

87

A6

86

30

85

A5

2 P/Br

Br

P/B 14

2

2 G

47

L

7

O

6

G/R

27

V

46 4 35

V

44 45 6 25

24

V 63

87

M

FB8 10A

85

87

B/O

(O nly f or 2.0L engin e )

O/B

G/W Gr

B/W 2

3 1

3 1 5 4

2

2

3

2

3

1

4

1

4

t°

W

68

Fuse Box K Plug-In Unit 18#

Fuse Box K Plug-In Unit 17#

Air flow meter

ECU/ B/2

V 70

30

M

ECU/B/13

2

86

Fuse Box Plug-In Unit K9#

ECU/A2/13

12

FB9 10A

Compressor Relay

Fan Control Module

Fuse Box Plug-In Unit K10#

Fuse Box K16#

M

O

This Fuse Wire is FB20 Within the Positive Fuse Box 15A

FB32 60A

Front G round/ DC/2

13

5

30

85 Fuse Box K8#

FB16 15A

Fuse Box J10#

Fuse Box K10#

1

30 15 ACC1 ACC2 31 ILLUM

R

50

V

V

39 17 42 37

69

Br

V

79

G/B P/Br

P 4

55

1

18

44

ECU（EMS）Engine ABS 6# 1 2

21 58 B/Y

2

L/W

5

O/B

P

59

81

33

76

P

L

77

51 53 3 61 80 34 15

74

P

P

Sb/B

B

20 19

62 81

31

71

O

P

G/W B/W W W/B

ECU/A2/8

ECU/ A1/7

ECU/A2/1

Ignition Coil

W/B

ECU/A2/6

Front Ground/QC/3

Brake Switch

TO Front ISUPE2/22#

3

To The Instrument 27#

Ignition Coil

1

3 2

Speed Sensor

31 CAN_H CAN_L

A4 A1A5

ECU/A1/7

To Front Combination Headlamp Plug-In Unit

2

3

1

4

10

ECU/ A1/2 ECU/ A1/1

3

36 33

Lg/B

ECU/ A1/5 1

16

Gr Y

P/B

ECU/ A1/3 5

6

EC U/ A1/ 4

4

1 4 2 5 6 3 Electronic Throttle

2 Ele ct ron ic a cc el era te p anel se nso r

Coil

To The Air Co nditioner Module B19 (AC S witch) To The Diag nosis Port 7#

5

40

Y/B

Sb Y V

L/W

A8

A2 B1 B2 B3 A7

Clutch Pedal Sw itch

Power Steering Switch

3

Gr

Anti-theft Control

Cranksha ft Kn ock Position Sensor Sensor

1

ECU/A1/16

ECU/ A1/6

32

35 64 67 66 65 78 38 54

V/W Br/B B

Front Ground/9

L/W

2

75 60

10

Electronic Th rottle Sensor

Ground CAN_H CAN_L

Figure9-1 ECU System Circu it Diag ram

13

Engine management system is mainly composed of sensor、electronic control unit（ECU） and actuator three parts. It controls the basic air intake volume、fuel inject volume and ignition advance angle when then engine is running. The A5 automobile apply the ME7.9.7 electric control system, the constitution is shown as figure 9-2：

Air int ake press ure temp erature s ensor Fuel distribution pipe assembly

Spark plug

Carbon canister control Valve

Phase sensor Front oxygen senso r Front catalyst Rear o xygen se nsor

Thr ottle valv e

Coolant temperature sensor

Accelarate pedal position sensor

Mai n catalyst Cran kshaft position se nsor

Electric fuel pu mp

Figure 9-2 M E7.9.7 Electric Cont rol System Constitu tion

14

CODE. For example: the flashing of P0203 is : flash 10 times continuously-intermission-flash 2

◆ Engine ECU ECU receives and deals with the engine state signal s which is inputted by each sensor, and drive each actuator work . It enable s the engine work a ccording to establi shed proc edure and insures the wel l motivity、fuel economy and drain performance.

times continuously-intermission-flash 10 times continuously-intermission-flash 3 times continuously. （ 2） （ Remove the plug） check whether the ECU connect lines are well, and whether the ECU power、ground is normal. （ 3） Check whether the working of outer sensor is normal, whether the output signal is creditable and whether the line is well. （4）Check whether the working of actuator is normal and whether the line is well. （5）Finally replace the ECU to test.

◆Input sign al ECU（EMS）Engine

Engin e computer is installed at the passenger side

The inst allation po sition of engin e computer

Figure9 -3 Engine ECU

Fau lt descri ption： Idle speed no t stable、 can not well accelerate、 can not start、 idle speed is too high、the exhaust e xceeds the standar d、 starts difficult、 A/C invalidation、 fuel in jector control in validation、 flameout and etc.

（1）Air Flow Meter The air flow mete r（ MAF） sensor m easures the volum e of air that inhal ed into th e engine. Engine control module（ ECM）uses the da ta to calc ulate the spout tim e、ignitio n timin g and engine load. To main r elay Air flow me ter （Only for 2. 0L engine）

Trouble Analysis： （ 1） The over loadi ng of outer conne ct set re sults in the burn of ECU inner components, which leads to i nvalidation.

3

2 Air flow meter 1 5

4

A ir intake te mperature sensor

（2）Water gets into t he ECU and results in the rus t in the line board.

（Only for 1.6 L engine）

17

42

Remark：There is no air flow meter in t he 1.6L engine elctronic control sy stem,and what instead is the air temperatur e sensor.

37

33

EC U

Figure9 -5 Air f low met er and its circuit d iagram

Trouble analysis： Sensor invalidation result from the pollution of dust、oil and water. Troubleshoot： Figure9- 4 Diagn osis plu gs

Troubleshoot： （1） （con nect the plug） u se the e ngine da ta K wir e to read engine fault record Start the ignition switch, use the engine data K wire （the standard diagnosis plug 7# pin ) ground （that's to connect the 4# and 7# pin of diagnosis plug with a lead） over 2.5s, if there is DTC in the ECU fault memorizer, the engine fault lamp will output the flash code, that's P-

Static st ate test（zero flu x test）： The 1st pin is air intake temperatur e pressure sensor, connectin g to the 42nd pin of ECU; the 3rd pin grou nds and connects to the 17 th pin of ECU;the 4th pin inputs 5 V refer ence volta ge, and c onnect to 33rd pin of ECU; the 2nd pin input s 14V rati ng voltag e; the 5 th pin is output vo ltage, and connects to the 37 th pin of ECU. Check the output voltage of 5th pin, if it is over 1.0 25V, the n the sen sor will be disqualification. Dynami c test： If it is p rimarily diagnosed as the s ensor's t rouble, c onnect th e emission analyzer and c heck the performan ce in the two working cond ition.

15

（2）Electric throttle and accelarate pedal position sensor The driver offer the engine real time torque requirement to ECU with the help of accelerate pedal, ECU send the impulse signal to the electric throttle according to the information it gained.Therefore, the motor in the electric throttle run and the throttle open to the required angle.

The crankshaft position sensor is to supply engine speed、 crankshaft rotating angle and TDC signal to ECU. I t is used to control the engine ignition and fuel eject timing. ECU 34 15

ECU 32

35

40 16

P

the 1st pin connect to screen the 2 nd、 3rd pin supply signal to ECU, and connect to the 15th、34th pin respectively.

33 36

B

Crankshaft Position Sensor

Cr a nkshaft pos ition sensor

Figure9- 7 Cranks haft posit ion sensor and its ci rcuit diag ram Accelarate pedal position sensor

accelarate pedal position sensor

Trou bleshoot： remove t he plug, set the multimeter at the OHM position , the two pens conn ect to the 2nd、3rd pi n respectiv ely. The rat ing resistance will be 860 Ω ±10 % when it is 20℃.

Descripti on of the pins of throttle positio n sensor： 1#、2# pin is 5V reference voltage anode; 3#、5# pin is 5V reference voltage cathode; 4#、6# pin is signal output voltage signal.

（4）Phase sensor （camshaft position sensor） ECU 64 67 66 65 78 38 54 32 Gr

Sb Y V

1 4 2

5 6

3

79

Electronic Throttle Valve

Descr iption of e lectric thr ottle pin： The 1st pin is the motor anod e, connect to the 66th and 67th pi n of ECU; The 2n d pin is the potentiom eter cathode, conenct t o the 78th pin of ECU; The 3r d pin is the potentiome ter anode, connect to t he 32nd pin of ECU, 5V power; The 4t h pin is the motor catho de, connec t to the 64t h and 65th pin of ECU; The 5t h pin is the signal output 1, conne ct to the 38 th pin of EC U. The 6th pin is the signal out put 2, conn ect to the 5 4th pin of ECU.

16

Conne ct to ground

ECU/A 1/2

Figure9 -6 Electr ic throttle position sensor and its circuit diagram

（3）Crankshaft position sensor

The sensor supply the crankshaft phase information to ECU, that's to distinguish the compression TDC and exhaust TDC.

Y/B

L/W

Ele ctric throttle

Fau lt descript ion：fault phenomeno n.

Phase s ensor

Th ere are three pins of phase sensor: th e 1st pin connect to g round; the 2nd is signal output,connect to the 79th pin ; the 3rd pin connect to the power anode.

321

ECU Phase s enso r Connect to main relay

Figure9 -8 Phase sensor an d its circu it diagram

Fault description： can not start, emission exceed standard, fuel consumption increased and so on. Troubleshoot： （ connect the plug） start the ignition switch but not the engine, set the multimeter at the DC volt position, connecting the two pens to the 3rd、1st pin of sensor, confirm that there is a reference voltage of 12V. Start the engine, then check whether the 2nd pin signal is normal by using the oscillograph.

（5）Knock sensor

（7）Oxygen s ensor

The knock sensor supply engine knock information to ECU, and control the knock.

loop control so that the eng ine can w ork in th e best C ondition, and mak e the CO, HC, N Ox comp ound tran sformed and depurated mo stly by the three-w ay catalytic converter .

19 Knock sens or

20

There ar e 3 pins on the sensor , the 1st、 2nd pin connec t to the 19t h、20th pi n of ECU; the 3 rd pin con nect to scre en.

The oxygen s ensor is used to detect th e content of oxygen in th e exhaust,the transmits a signal to ECU, a ccording to the in formation ECU wi ll make t he fuel closed

EC U

ECU Knock s ensor

1

Rear Oxygen Sensor G/B

1

2

4

3

Main relay

P/Br 18

Figure9- 9 Knock sensor and its c ircuit dia gram

Front Oxygen Sensor

Fault description： It can not accelerate well

There are 4 pins on this oxy gen senso r

Fault analysis： Several k inds of f luid such as fuel、 coolant、 brake fluid、 water c ontact to sensor fo r long time wil result in the erode of sensor. Troubleshoot: （ Remove the plug） Set the multimeter to the ohm position,

connecting the two pens to the 1st、2nd and 1st、3rd pin respectively, and the resistance in normal temperature should be more than 1MΩ. Set the multimeter at the mV position,

Front oxygen sensor

No.1 c onnect to h eating power positiv e （white） No.2 c onnects to heating po wer negat ive （whit e） No.3 c onnects to signal neg ative（gra y） No.4 c onnects to signal pos itive （bla ck）

and knock the knock sensor with a hammer gently, then there will be voltage signal output .

（6）Coolant te mperature s ensor The coolant temperature sensor supply coolant signal to ECU, so as to enable the start、 idle speed、 ignition timing and injection impulse width modify. There are two pins, and they can exchange to use. Fault descrip tion : Sta rt difficultly Troubleshoot： （ Remove the plug） Set the multimeter at the ohm shift, the two pens connect to the 1st、 2nd pin of sensor respectively, the rating resistance is 2.5kΩ±5% when it is 20℃. The other temperatures please refer to table 8-1.

Co olant temperature sensor

17

Ta ble 8-1 Te mp er atu re （℃） -10

Resis tance （kΩ ）

39

8.62…10.28

20

2.37…2.63

80

0.299…0.345

ECU

1

2

C oolant tempe rature sen sor

Figu re9-10 Coolant tem pe rature sensor and its circuit

Rear oxyg en sensor

Figure9 -11 Oxygen sensor and its circuit

17

Fault descriptio n: Badnes s idle speed, badness acceleration, badness tail gas, over fuel consume et c. Fault analysis： Moist ure enterin g inside of s ensor, then the temper ature is ch anged and t he pin is br oken; the sensor i s poisoned（ Pb,S,Br,Si） Troubleshoot : （1） Disassemble joint， Put digital multimeter to ohm shift, connect meter pen to No.1 （white）and No.2（white） pins of the sensor. Normally the resistance value is 1~6Ω. （2） Connect the joint and keep it at idle speed status. When the oxygen sensor reaches to

（10）Clutch pedal switch The 1st pin of clutch pedal swit ch is connec tted to the 74 th pin of ECU, and the other pin is connect ted to grou nd.

ECU 74 Sb/B

Clutch pedal switch

ECU/A1/7

its working temperature 350℃, keep digital m ultimeter to DC volt shift and connect meter pen to No.3 （gray） and No.4（ black） pins of sensor. Now the voltage should be fluctuate between

Clutch Pedal Switch

0.1- 0.9V quickly （the data also can be gotten from data f low inspected by diagnosis meter）.

（8）Vehicle speed sensor ECU 59

Vehicl e speed sen sor

Figu re9-14 Clutch pedal swit ch and it s circuit

T o fuse FB5

（11） Power steering switch T he 1st pin of the vehicle speed s ensor connect t o power T he 2nd pin conn ect to ground T he 3rd pin is th e vehicle speed s ignal, it conne c t to the 59 th pin of engin e ECU.

1

3

2

Ve hicle spe ed senso r E CU

Figur e9-12 Ve hicle spee d sensor a nd its circ uit

76 L

（9）A/C pressure switch

switch is connectted to the 76th pin of engine ECU, and the ECU 75 60 V/W

A/ C high/low pr essure switch

Br/B

2

3

1

4

other pin is connectted to ground. In stallation position of

Pow er Steering Switch

power steering switch

High/Low pressure Switch

The 2nd pin of A/C high/l ow pressure swit ch connect to the 75th pin of ECU; the 3rd pin conne ct to the 60th pin of ECU; the 1st、 4th pin connect to the B19 switch of A/C module.

Fig ure9-13 A/C pressure switch and its ci rcuit

18

The 1st pin of the power steering

To The Air Conditioner Module B19 (AC Switch)

Figure9-15 Power St eering switch and it s circuit

◆Actuator

（2）Fuel injector ECU sends electric impulse to the coil of injec tor and forms the magnetic field

（1）Ignition coil The ign ition coil transfor ms the low pressu re DC of battery to the hig h pressure elec tricity, w hich gets through the spark plug and brings o ut spark to burn the mixtur e in th e cylinde r.

power.Wh en the power incre ases enough to overcome the combined force o f release spring pressure 、needle v alve grav ity and fri ction, the needle va lve begin to rise and the fuel inject procedure start. Wh en the fu el injection impulse stops, the pressure of relea se spring closes the needle valve again.

Th e1st coil prim ary windin g is connect ted to the 5th pin o f ECU The 2nd coil pri mary windin g is con nectted to th e 2nd pin of ECU.

Connects to 87# of main re lay

The 3rd pi n is connectted to the anode of pow er The 4th pin is em pty. 2

2 Br

Table 2 C apacity Primary winding Resistance （20-25℃）

Elementary winding Seco ndary winding

Electromagnetic induction Elementary winding （20-25℃） Seco ndary winding

Ig nition coil

Volta ge

Load 50pF Load50p F//1MΩ

47

2

2

G

L

7

6

O 27

ECU

Min

Cost Model

Ma x

0.4 2 11. 2 3.4

14 0.5 13.0

0.58 14.8

26. 5 30 23

4.1 32.0

4.8 37.5

Unit V

F uel injector

Ω kΩ mH H kV kV

F igure9-1 6 Ignit ion coil

P ins: each f uel injector has two p ins . The o ne which is marked w ith "+" at one side o f the shell c onnects to the 87th pin of main r elay output port; the o ther conne cts to the 2 7th、 6th、 7th、 47th p in of ECU.

Figure9 -17 Fue l injecto r and its circuit

Fault description： can not start.

Fault analysis ：T he current is too h igh to burn 、dama ge by ou tside forc e. M aintain n otice： It is forbidden to try the "short circuit test way" to test the ignition function, so as to avoid the damage to ele ctric controller. Tr oubleshoot :

（ Remove the plug） set the multim eter at th e OHM position, connecti ng two pens to the two p ins of primary win ding resp ectively. When it is 20℃, the resistance is 0.42-0.58Ω，and the se condary winding i s 11.2-14 .8kΩ. Refer to ta ble 20℃

Fault d escription： Idle speed is not wel l、 accel erate not well、 can not st art

(sta rt difficult)and etc. Fault analysis： Because of th e lackness of maintainen ce, there is coll oid accumulate in the fuel injector and result in the i nvalidati on. Troubl eshoot :（ Remove the plug） set the multim eter at the ohm p osition, the

two pens connect to the two pin s of fuel injector, the rating resistance is 12Ω when it is 20℃. Advice：clean the fuel injector with specialized cle an analyzer.

19

（3）Fuel pump relay

（4）A/C rela y

The battery supplies power to electr ic fuel pum p through fuel pump relay, the relay can only p ut through the electric fuel pum p circuit when startin g or the engine is run ning. When the engine stop running a ccidently, the fuel pu mp will also stop automatically.

To m ain relay

The A/C switch open, blower switch open , the A/C pressure is normal, the evaporator temperature sensor detects the correct data, the A/C requir ement signal is sent to ECU via these switches. After receiving the signal, ECU controls the A/C relay to close and sends the speed increasing signal to the stepper motor at the same time, and start the electric fan, then the A/C system will start working.

To power

FB16 15A To main relay To main pow er

86

30

85

87

Fuel Pump Relay

Fron t engine com partment box

A/C relay

V 70

EC U

A /C compres sor M

Fuel pump

Figure9- 18 Fuel p ump relay circuit di agram

E lectromagn etic clutch 69

Faul t descript ion： Loud noise when running、 can not well acce lerate、 ca n not

ECU

start（start difficult） and etc. Fau lt analysis： For t he using of bad fuel: 1．C olloid accumulate and form insulated surface 2．fuel pump b ushing and armature locked 3．fuel sensor unit erode. Trou bleshoot： （ Remove the pl ug） set th e multimeter at the ohm pos ition, connectin g the two pens to the two pins of fuel pump, test the inner resistance, it is not 0 or（that's to say it is not short c ircuit or op en circuit state）. （Co nnect the plug）connect the fuel pressure gauge at th e oil intak e pipe, sta rt the engine, ch eck whether the fuel pump work; if it is not work, c heck the “ +” pin t o see whether th ere is pow er voltage; if it works, observe the working conditions of engine to see whether th e fuel pres sure is about 300kPa.

20

Figure9-1 9 A/C relay

Common troubles： 1． The blower mot or fault （ fuse burnt, relay circuit open circuit or short circuit ） 2．The A /C pressur e is abnorm al （high pressure is too high and low pressure is too low） the evaporator temperatu re sensor fault 3．A/C relay line fault （short circuit to ground、s hort circuit to power、open circuit）

（6）Canister purge valve

（5）Cooling fan control module ECU Controls the running of fan according to the engin e coolan t temperature and A/C requirement signa l, it contr ols the re lay of fan system if conditio ns are met.

To Main Re lay

To M ain Power

To Ground

Canister purge valv e controls the volume of cleaning air flow from c harcoal canister to air int ake main pipe. Th e adsorb ing capab ility of carbon canister is l imited, if the oil steam ad sorbed in the carb on canister can't be consumpt, the oil will volatilize to outside and pollute the air. 46

To main relay

The carbon canister only has two pins, with one connecting to t he 87th p in of mai n electric equipment output port , and the othe r

ECU

connecting to the 5th pin of ECU. Fan control m odule

86

30

85

87

86

30

85

87

Low electrical fan relay

High electrical fan relay

A6

A5

Canister pur ge valve

FrontGround/ DC/2

M

M

ECU

50

Figure8-2 0 Coolin g fan co ntrol mo dule circ uit

Co mmon tr oubles： 1．High spe ed relay line is short circui t to power； 2．High spe ed relay line is short circui t to groun d； 3．High spe ed relay line is op en circuit； 4．Low spee d relay li ne is sho rt circuit to power； 5．Low spee d relay li ne is sho rt circuit to ground； 6．Low spee d relay li ne is ope n circuit； 7．Engine c oolant temperatur e sensor f ault； 8．Engine a ir intake temperat ure senso r fault；

Figure8-2 1 Canister purge valvean d its circuit

W

B/O 68

Ca nister purge valve

Fault description： The fuel pressure is too low or too high, and start difficultly.

Fault analysis： Because lacking of maintenance for a long time, it results in that: （ 1）The filter screen jammed ; （ 2） Grain impurity result in the serious leakage; （ 3） Manmade mechanical damage and so on. Notice for maintenance： In the maintain procedure: （ 1）It is forbidden to impact the diaphragm with high pressure gas; （2）It is forbidden to clean it with causticity fluid; （3） It is forbidden to force on it and result in distortion. Troubleshoot：

Connect the fuel pressure gauge at the oil intake pipe and start the engine to let it work on idle speed, check whether the fuel pressure is about 350kPa; step the accelerate pedal until the engine reaches the speed of 2500rpm, check whether the fuel pressure is about 350kPa then.

21

ABS System

ABS brake down parts

30 15 A CC 1 ACC 2 31 ILLUM

Brake lamp switch

Brake pedal

Sensor To The FB1 Brake Switch, 5A ECU21#, Front ISU PE2 22#

SB4 40A

ABS control unit

Hydraulic pressure pump electromotor

Control unit

ABS hydraulic pressure unit with low pressure reservior Execute parts

SB5 40A El ec tr oma gnetic v alv e

K7

A2

A1

Position of ABS control m odule Rear wheel speed sensor

Installation position of ABS control assembly

ABS warning indicator lamp Lg

L/W

6

32

R

R

31

2

Front wheel speed sensor

Self-diagnosis connector

ABS Control module 41 B

ECU/Front Ground/4

42

43

Y

V

ECU/Front ECU/Front Ground/3 Ground/12

Front/Rear 1/14

44

Front/ Rear 6

Rear Left Wheel Speed Sensor

Front/Rear 1/15

12

V /W

ECU/Front Ground/ 11

13 G

ECU/Front Ground/15

26

Y/B

Br

18 W

W /B

16

45 B

B

ECU/Front Ground/16

Rear Right Wheel Speed Sensor

Front R ight W heel Speed Sensor

R ear Right Wheel Speed Sens or

31

④ ④

C AN_ H C AN_L

Figure1 0 -1 ABS System Circu it

22

3

ECU/Front Ground/8

Front Left Wheel S peed Sensor R ear L ef t Wheel Speed Sensor

R

ECU/ Front Ground/7

Front/ Rear 17

27

Circuit analysis: for the cars with no ABS, when forcibly s teps down the brake pedal during driving, the wheel speed will decrease suddenly. Once the brake force is more than the friction between wheels and floor, wheels will be braked. T he wholly braked wheels will decrease the friction between t ire and floor, if the front wheels have braked, driver can hardly control the running direction of the car; and if the rear w heels have braked, the car will swing. The ABS is used to restrain the skidding phenomenon of wheel specially. It will supervise the speed of each wheel and control the hydraulic pressure when braking. This can enable the driver to keep the stability of direction and help the car possess better steering capabil ity. The circuit diagram is shown as figure 10-1. The voltage of the 30th wire supply to the 31st pin of ABS control unit via the 40A fuse Sb4; The voltage of the 30th wire supply to the 2nd pin of ABS control unit via the 40A fuse SB5; The voltage of the 15th wire supply to the 32nd pin of ABS control unit via the 5A fuse Fb1. Th e 12、 13、 26、 27、 41、 42、 43 、 44 of ABS control unit connec t to the F/L 、 F/R、 R/L、 R/R w heel speed sensor respectively; w hen the w heel runnin g, the sensor produces voltage signal which changes with the increas e of speed. Th e 6th pin of ABS contro l unit connect to the br ake switch s ignal; the 16th、45th pin of ABS control unit connects to g round. Th e 3rd pin of ABS control unit connect to CAN- H wire, an d connects t o the 30th pin of combi nation inst rument、 62nd pin of engine ECU respectively. The18t h pin of A BS control unit connec ts to CAN -L wire, and connects to the 29th pin of combination instrume nt、81st pin of engine ECU respectively.

Airbag System

circuit analysis: T he circuit of airbag is shown as figure 11-1. When there is serious frontal crash, to avoid the driver or front passenger bumping onto the steering wheel or instrument panel, there will be an airbag expand on the steering wheel and instrument panel so as to protect the driver and front passenger. The SRS（ Airbag system） include: driver side airbag module、 passenger side airbag module、airbag control module、helix cable、wiring harness and SRS fault warning lamp. When the ignition switch is set at the position of ON or ST, the voltage of battery supply to the 25th pin of SRS control module via FB4 fuse. T he 2nd、 1st pin of the airba g module are connectted to t he front driver side airbag via helix cab le; the 17 th、16th pin of airb ag module are conn ectted to the driver side airb ag directl y; the front passenger side ai rbag conn ect to the 3rd、 4th pin of air bag module directly; the pass enger sid e airbag c onnect to the 18th、 19th pin of airbag module di rectly; the 21st、22 nd、23rd and 24th pin of airb ag module connect to the side airbag crash sensor. The 12nd、37th pin of airbag module connect to pa ssenger side airbag lock. T he 10th pin of the airbag modul e output the airbag warning signal, it connects to the 17th pin of instrument; the 47th pin of the airbag module output the side airbag warning signal, it connects to the 24th pin of instrument; when the ignition switch is at the position of ON, the SRS

30 15 AC C1 ACC2 31 ILLUM

30 15 ACC 1 AC C2 31 ILLU M

FB 4 5A Spiral Cable

F ront E ngine Com partm ent E lectri cal Bo xL9

In strum ent/F ront Grou nd/14

F ront Passe nger Side Airbag In strum ent/A irbag /A

Driver Airbag

Driv er Sid e Airb ag

Pa ssenger S ide Airbag

R S piral C able

D river A irbag

G Gr

Lef t I mpac t Sensor

L L/R

25 1 2

3 4

21

23

22

24

Airbag Control

18 19

warning lamp in the instrument panel flash for 6s with the frequency of 1Hz and then off. If the SRS warning lamp didn't flash for 6s or it keeps shining , Taht's to say the SRS system is not in good working condition .

L/W

Driver side Airbag

G/B

Tem por arily Use less

31

In strum ent/F ro nt G roun d/B10

Instr umen t/ Airb ag/C

Br /W V

To Diagnostic C onnector 7#

12

9 P/B

To ISU PE 2/16

To Instrument 17#

37

17

Front Pass en ger Side Ai rbag

O/B O/G

Right Impac tSens or

O O/W

Front Passenger Side Ai rbag

G G/W

Fr ont Passenger Airbag Lock Switch

8

Sefty Bel t

Sef ty Belt

16

R B

47

G

To Istrumen t 24#

48 11

B

10 46 11

Fron t P as seng er Airb ag Lo ck S w itch

Figure11-1 Airbag S ystem Circuit

23

A uto A/C System 30 15 AC C1 ACC2 31 1 LLUM T O Wiper motor 2#

F b13 30 A

To Instrument 7#

Fb7 10 A

External Temperature Sensor

G20

Fr ont Gr oun d/F ron t En gin eCom pa rt ment /D

L14 To Wiper Switch 9#

Instrument /Air Conditioner /14

T O FRONT T O FRONT IS U PE1 IS U PP3 28# 15#

M I nst r um ent/ F r on tG round/ A4

Sunlight Sens or

ECU/A2/4

I nst rum en t / A irC ondit ioner/ 11

Instrument/ Front Ground/15

I nstrument/F ron t Ground/b6

Ins tr um e nt/F ron t Gro und / B1 0

In strum en t/A ir C on d i-tion er/6

In strum en t /A ir C o nd itio ne r/1 2

Ins tru me nt/Air C o nd it ion e r/ 2

Temp erature Senso r

A nti-Theft I ndicator L ightLine

B lower Spee d Co ntrol Module

Internal Temperature Sensor

Sunlight Sens or In strum en t/A ir C o nd it ion e r/1 5

In s trum e nt/A ir C o n di-ti o ne r/ 1

Coolant Temperature Sensor

Coo la nt Te mperat ure Senso r Br /W A4

B r/Y

Blower Sp eed Control M odule

O/W

A5

Lg

Y/O

A9

A1 0

B1 6

R/W

Y/ Br

B1

Y/R

A1 8

A19

A ir Conditi oner Cont roller

B5

B1 5 Lg /B

B6 G/R

Y/W

A 15

Y/ B

A14

A2

Air Conditio ner Controlle r

B7

G /W

B9

V/ B

A1 7

W

B4

V /W

B3 L

A1

L/B

A16

V /Y

L/W

A11

B11

B1 4

V /R

O

W

B13 Br

I nst r um en t/ A ir C ond it i oner / 8

Inte rnal & Extern al Circula tion Control M otor

3

1

2 M

1

6

2

5

M

Inte rnal & Exte rnal Circulat ion Control Motor

Tem perature C ontrol Motor

1

3

6

2

M

Mode Cont rol Motor

I nst r um en t/ F ro nt G r oun d/B 11

5

T O FRONT ISU PE2 32#

31

Figure12-1 Air Cond itioning System Circuit Diagram

24

Y/G

To The Diagnosis Port 7#

To The High/Low Voltage Switch 1 # and 4# Of Air Conditioner

B9

B2 B

B

B 10 B

Auto A/C System Circuit Analyse： The Auto A/C is shown as figure12-1. When the ignition switch is at the position of ON, the ACC1 and the 15th wire gets electricity. The 15th line supplies power to the B1 pin of A/C controller via Fb7 fuse; the A18、 A2 、 B2 、B9、B10、B16 pin of A/C controller connect to ground. The voltage of A CC1 wire supplies power to the 5th pin of blower speed adjusting module via the Fb13 fuse; the 7th、8th pin of blower adjusting module is connected to the blower motor; the 6th pin connects to ground; the 3rd pin is the blower speed adjusting signal, and connects to the A5 pin of A/C controller; the 2nd pin is the blower voltage feedback signal, and connects to the A4 pin of A/C controller. The B5、B6 pin of A/C controller connect to inner/outer circulation control motor, the control panel drives the circulate wind door connecting pole、 move pole by the control of inner/outer circulation servor motor , and also move the big、 small wind door and thereby it realize the control of inner/outer circulate wind. The B7、B8 pin of A/C controller connect to the cool/warm control motor, the control pa nel drives the dial and the pole in the temperature adjusting unit by controlling the blend door servor motor, and also move the blend door and thereby it realized the different proportional air mixture. The B3、B4 pin of A/C c ontroller connect to the mode control motor, the control panel drives the dial and the pole in the wind direction adjusting unit by controlling the mode wind door servor motor, different pole control the open and close of different wind door and thereby it realizes the control of air. The A18 pin of A/C controller connects the outer temperature sensor. The outer temperature sensor is one of the important sensor of auto A/C. It will influence the air temperature of the wind outlet port、wind volume of the wind outlet port、the position of mode door and the po sition of air intake port. For the inspection of outer temperature, you can dismantle the connector of the sensor and test the DC voltage of the the front ground/front engine compartment/D end o f the wiring harness, the normal value is 5V, if not, that's to say there is something wrong with the wiring harness or A/C computer. The A15 pin of A/C controller connects the inner temperature sensor. The inner temperature sensor is one of the important sensors of auto A/C.It will influence the air temperature of the wind outlet port、wind volume of the wind outlet port、the position of mode door and the po sition of air intake port. For the inspection of inner temperature, you can dismantle the connector of the sensor and test the DC voltage of the two ends of the wiring harnes s, the normal value is 5V, if not, that's to say there is something wrong with the wiring harness or A/C computer. The A14 pin of the A/C controller connects to the coolant temperature sensor. The coolant temperature sensor is to test the temperature of heater core and modify the position of the blend door. It can avoid the working of compressor when the engine is in high temperature; it can also

control the blower, when the coolant temperature is too low, the system will start the preheat control. That's to say when the coolant temperature is too low and it is in warming working condition , to prevent the cool wind from blowing out, if the coolant temperature is lower than the system set temperature, the blower will work in low speed or doesn't work. The A19 pin of A/C controller connects to sunshine sensor. The sunshine sensor induce the the strong or weak of the sunshine to modify the position of blend door and speed of blower. To inspect the sunshine sensor, you can read fault code or in the way of testing the resistance or voltage. （1）Te st the resistance Test in strong su nshine, th e resistan ce will be 4kΩ , co ver the s unshine s ensor, the resist ance will be ∞. （2）Te st the vol tage The volta ge in stro ng sunshin e is norm ally lower than 1V, cover the sunshine s ensor, the volta ge will be over 4V.

Air Conditio ner Contr oller

B7

B8 A17 W V /B V/W

B4

B3 L

A1

L/B

A16 A11 L/W V/R

V/Y

TO lower S peed Control M odule

3

1

6

2

5

Tem perature Co ntro l Motor

1

3

6

2

5

Mod e Co ntro l Moto r

Te mpera tur e Cont rol Motor Mode Cont rol Motor

25

Manual A/C System

Manual A/C System Circu it Analyse：

30 15 ACC1 ACC2 31 IL LU M T O ECU75#

F7 A/C 15th line power fuse

FB7 5A

TO ECU 60#

A/C Blower fuse F 13

FB13 30A

Fuse box /G/ 20# R/L

A/ C p res sure Switch

Bl ower Relay

IP1/B6 B

Fuse bos /L/14#

R

W

IP1/A4

Front Eng ine Compartment Fuse Box

ECU /E

A/C press ure S witch

A/C 4

A/ C 6

A/C 11

A/C 12

Y/G A/C 7

1

2 A5

A3

A7

A10

A 11

A20

B5

A12

3

Gr ound

B

4

H igh sp ee d Rela y

+ Blower

-

B6 B1

A/C S witch A9

Br

A14 A13 A6 A15 A2

A18 A19 A 4 A8 A1

B3

B2

B4

2

R1 3 E4

E2

D 1 D3 D6 D2 D5

C1 C3 C6 C2 C5 1

-

-

+

+

-

+

R2

R3 4

In tern al&ext ernal Cir culation c ont rol Mot or

Temperature Control Motor

Mode control Motor Mode Con trol Motor

Temper ature Control Motor

Figure13-1 A ir Conditioning System Cir cuit Diagram

26

Blowe r spe ed adj usti ng r esistance

The manual A/ C is shown as figure13-1. When the ignition switch is at the position of ON, the ACC1 and the 15th line get electricity. The 15th line supplies power to the A20 pin of A/C controller . The ACC1 line supplies power to t he blower relay coil; the blower relay coil g et electricity and the contact closed, the voltage of the 30th line→FB13→blower relay contact point→blower motor→the 2nd pin of b lower s peed a djust ing r esistance . The two ends o f blower motor and h igh speed relay cont act point （the 3rd、4th ） parallel connected, the high speed relay coil （ the 2nd p in） connect to the B1 pi n of A/C c ontroller, when the high speed relay coi l get electricity, the conta ct closed. The volta ge of the 3 0th line→ FB13→ bl ower relay coil→ blower motor→ connect to ground. Then the blo wer motor will run in high speed . The 3 rd pin of t he b lower s peed a djusting re sistance is connectt ed to the B4 pi n of A/C controlle r, the 1s t pin of b lower speed adjusting r esistance is connec tted to the B2 pin of the A/C controller, the 4th pin of b lower s peed a djust ing r esist ance are connectted to the B3 pin of the A/C controller, the running speed of the blower mot or is controlled by A/C controller. The A9、A12 pin of A/C controller are connectted to the inner/o uter circulation control motor, the control pa nel drive the circulation wind door connecting bar、shi ft lever by controlling the inner/outer circulation servo motor so as to drive the movement of the large、small wind door and realize the control of inner/o uter circulation wind. The A13、A14 pin of A/C controller are connectted to the cool/w arm control mo tor, the c ontrol panel drive t he conne cting bar、 shift lever of temperature adjusti ng control mechani sm by controlling t he blend door servo moto r so as to drive the movement of the bl end door and realize the mixture of different r atio of air and gas. The A18、 A1 9 pin of A/C contr oller are connectted to the mode control mo tor, the control panel drive the connecting bar、 shift lever of wind direc tion adjusting control mechan ism by co ntrolling the mode wind door servo motor, dif ferent shif t lever control the open and cl ose of diffe rent wind door and thereb y realize t he control of air. The A3 pin o f A/C controller is connectt ed to the A/C Pres sure Switch .

Front ISU System 30 15 ACC1 ACC2 31 ILLUM

10

2

2

10

10

10

9

9

10

30 15 ACC1 ACC2 31 ILLUM

FB22 7.5A G7

To Ins trument 11 FB30 80A

(2)31

FB25 10A Instr ument / FrontGround/9

L

V

A11 E

C11

Lg Sb

Sb M

Front Gro und/ Front Eng ine Compar tmen t /10

Lg

P7

FB27 15A

FB26 10A P5 G/W

ON

Gr

A19

A17

OFF

R

C8

P

5 2

P

G/L

Instrument/ Air Conditi -oner/8

OFF

I nst rument /Fro nt G ro und/ G

P/L C6

F10 7.5A

C20

C9

A26

Br I nstr ument /Fr ont

W/ B

C13 R

C3 R

A29 R

A30 B22 B16 B5 O/ B Lg/B

P/B

V

5

A8 V/W

6

5 2

Hazard Switch

Y

Br/ B

A10 A13 B32

Fr ont Ground/ Instrument /B7

L

B3 V/ B

B24 Sb

L

Front Ground/ Right Front /5

G R

O

W

A22 A18 B29 A24 A12B13

B14

B30

To ACC Relay

Y A3

V C4

Gr G A2 A15

Front ISU C15 A28

C12 P/B

R G/L

Wip er S witc h3 #

F ront Ground/ In strument /A 1

Fr ont Gr ound/ Left 2/ 8

F12 7.5A

A4 R

T o ig nit io n Inst rumen t FROM swi tc h 3 # 31# FRONT LEFT TURN To

Fr ont Ground/ I nstrument / B8

Front Ground/ Instrument /B11

G

4

To

F8 10A

A25 A25F C7 W/G

R A23

C14

F8 10A F1 25A

6

ON

F/R high/ Low beam

Br/W C10

5 2

M

H/LP LEVEL'G DEVICE SW

W L/W 4 3 1

To Au tom a tic Air C o nd itio ne r

In s trum ent /Front Ground/9

W

(2 .5ko )

F/L high/ Low beam

6

FB14 15A P11

W L/W 4 3 1

2

Br 6

W

L11

Front Grou nd/ In st rume nt /2

B7

Low Be am Relay

L1 2

(1)58

TO To key Instrument Switch 13#

L/ B

W L/W 4 3 1

(3)58b High Beam Rel ay

To Fron t E ngi ne Compartment Fus e Box G1 3

Y 1

Inst rume nt/ Front Ground/ A2

G4

P

B12

Lg/ B

B1 B28 B4

B19

A31

O/B

Lg/ W

L/W Br/W G/W

O/B

Lg/ W

L/W

G rou nd / 11

L

To Radio 16#

From illum l ine Front Ground/ Front En gine Compartment /13

Front Ground/ Front Engine Compartment /16

To Hazard Warning Lamp Switch 6#

Terminal

4 3

Function Main Li ght Sw it c

2

1 13 12 11 10 9

Ant i-theft Hor n

2

6 5

OFF

P

Steering Swit ch

2

9

3

2

10

3

DIAGNOSIS CONNECTOR

W/B

16

15 14 13

12

11 1 0 9

8

7

4

3

L

6

5

2

1

W/G

T o E ngi ne AntiT hef t Modu le

L φ

To Ins trument 1 5

R 6

Po i n t p ower(W)

8

7

G/W

Cle ara nce Lam p Hea d Lam p Low Be am Bea m Ch ange Sw it ch High (Tu rnO n Bea m Th e OvertaHe adla mp) king

Hor n

31

8

Br /B

11

To In st ru m en t 15 #

CAN_H CAN_L

1 20 1 20 42 11

11

42 11

To Air Bag 46 To Automaitc Air Conditioner B11

10

10

Ground CAN_H CAN_L

Figure14-1 Fr ont ISU System Circuit Diagram

27

A5 has two veh icle body compute r, one is front IS U （ shown as fig ure 14-2

,

electricity. W hen the ignition p ower is of f, open one door, the inner il lumination lamp wi ll light on until the door is c losed, and will cont inue to lig ht for 15s after the door closed. W hen the i gnition po wer on, the inner ill umination lamp will light on only when t he door is

the other is rear ISU .

1．Front ISU The parts that co ntrolled by the front ISU h ave the f ollowing functions: （1）In ner lamp control an d steering lamp、he adlamp high/low beam; （2）Central con trol lock f unction （3）Button-typ e electric window o peration function （4）In termission time con trol of window wip er （5）Delay the cl ose time o f electric window when the ignition sw itch is of f （6）Rear view mirror heating control fuction (the adju stment o f the moto r is Con trolled by switch ) （7）Key not pull out warning （8）Warning and anti-th eft （9）CAN-BUS data trans fer(with i nstrument、engine、ABS computer)

C wire plug 20

open, a nd be off w hen the door is clos ed. T he A23 p in of front ISU is t he key hole illumin ation lamp signal output pin, when the ignition power is off, the key illumination lamp will light on if open the drive r 's door. E ven if the driver's door is closed, the lamp will continue to light on for 8s. Shown as figu re 14-3.

Keyhole Light

Front Ceiling Light

Clove Box Switch

30 15 ACC1 ACC2 31 ILLUM

10

9

9

E power Instrument/FrontGround/A2

D wire plug 12 F gr ound

FB29 80A

Rear Windshield Warmer Switch

A wire plug 32

B w ire plug 32 ON

ON

O FF

O FF

Figure14- 2 Front ISU Clove Box Switch

2．Vehicle inner illu mination lamp The 30th power line sup ply power to the fro nt ISU via the fuse F B 29, and then via the fuse F10 and output from the C14 pin of ISU to supply power to key hole ill umination lamp、glove box lamp、ma ke up mir ror 、front roof lamp、rear roo f lamp. The B14 of fro nt ISU is t he F/L contact switc h; the B30 of front ISU is the F /R contac t switch. When the indoor illumination lamp switch is at the left side or right side (door control position), the front I SU computer will control the i nner illum ination lamp (roof lamp work). When the igni tion powe r is off, if o ne of the 4 doors is open, the inner illum ination lamp will light on; while afte r 15 min, the inn er illumination lamp will be off automatically to save

28

Front Ground/ Left 2 /8

Front Gr ound/ Front R ight /5

Instrument/FrontGround/G

E

R C14

R A23 F1 0 7.5A

P/L

O C6

B14

Front ISU

F igure14- 3 Vehicle inner illumina tion lamp circuit

W B30

4．Headlamp circuit

3．Turn lamp and hazard warning light circuit （1）Turn lamp and dangerous warning lamp circuit As shown in figure 14-4, the 30th power line supply power to the E pin of front ISU via fuse Fb29 and then fuse FB25, and output from the C20 pin of front ISU to suppply power to F/R turn lamp and right side turn lamp; the voltage output from the the C9 pin of front ISU supply power to F/L turn lamp and left side turn lamp; it also supply power to the 4th pin of dangerous warning lamp. If one turn lamp cause trouble , then the other turn lamp of the same side will speed up the flashing frequency, and it will be twice of that in normal condition. But the side turn signal lamp will not be influenced. （2） Anti-theft activate lamp warning There are two modes of vehicle lamp warning system: activate or unchain mode. When the vehicle lamps connected, open the driver's door (system activate), the buzzer will warning. If you close the driver's door or turn off the vehicle lamp switch when the buzzer is warning , it will stop. 30 15 ACC1 ACC2 31 ILLUM

⑩

FB30 80A

The vol tage of 30th line→line after the h igh beam relay contac t point get into two li nes: one line via th e FB25→F/L high bea m, the oth er line via the FB26→F/R high beam, the h igh bea m light on then. （2）Lo w Beam C ircuit Low Be am Contro l Circuit： The voltage of 30t h line→fus e Fb22→lo w beam re lay coil→t he A17 pin of front I SU, wh en the low beam relay coil get ele ctricity, th e contact p oint will cl ose. Low Bea m Main Ci rcuit： The volt age of 30th line→line after the lo w beam re lay contact point get i nto three li nes: one line via the FB27→ F/L low beam and F/ L lamp ad justing mo tor , the 2 nd line supply pow er to head lamp adjusting switch ; the 3rd line via the FB14→F/R low beam and F/R la mp adju sting moto r , the low beam ligh t on then. （3）La mp Comb ination Sw itch When th e switch is set at th e high beam positio n, the 10t h and 13t h pin of la mp com bination s witch are c onnectted, the 12nd、8th and 11 st pin are c onnectted, the B1 pi n of fron t ISU→ th e 10th pin of lamp c ombinatio n switch→ the 13rd pin of lamp combina tion switch→groun d, the B12 pin of fro nt ISU→ the 12nd pi n of lamp c ombinatio n switch→ the 11st pin of lam p combina tion switch→ground. When t he switch is set at th e low beam position , the 12n d and 11th pin of la mp com bination s witch are c onnectted, the 12nd、11st and 9 th pin are connectted . When t he switch is set at t he overtake position , the 10th and 13rd pin of la mp com bination s witch are c onnectted. Lamp M ain Switch：

E F1 25A

P

High Be am Contr ol Circuit： The vo ltage of 30 th line→fu se FB22→h igh beam r elay coil→the A19 pi n of front I SU, wh en the high beam relay coil get el ectricity, the contact point will c lose. High Be am Main C ircuit：

Lamp C hanging S witch：

（2）31

Front ISU

C7

（1）High Beam Circuit

C8

C20

P

G/L

Front Ground/Front Engine Compartment/13

A3

C9

Br

Fron t G round/ Fr ont En gin e Com part ment /16

Y

I nstr ume nt/Front Ground/ 11

To Haz ard W a rni ng l ig ht Swit ch 6#

Hazard Sw itch

Le f t Side Turn Li ght

From ILLUM Right Side Turn Light

From Front Left Turn

31

Figu re14-4 T urn lamp circuit

Y 1

2

Br 6 5 W

4

When t he switch is set at the dimme r position , the 10th and 13th pin of la mp com bination s witch are c onnectted; and when the switch is set at th e headlam p position, the 10th and 13rd pin of lamp combinat ion switch are connec tted, and th e 12nd、1 1st and 8th pin are connectted . Steering Switch： When th e switch is set at the L position, the 6th and 5th pin of lamp comb ination sw itch are connectted; and when the swit ch is set a t the R po sition, the 6th and 7 th pin of la mp com bination s witch are c onnectted. The circui t is shown a s figure 14 -5.

29

30 15 ACC1 ACC2 31 ILLUM

2

FB22 7.5A G7

To Ins trum ent 11

G4

Right low beam

High Beam Relay

Low Beam Relay

FB25 10A

L 12

FB27 15A

FB26 10A

FB14 15A

L11

P11

Ins tru me nt / Fro nt Gr oun d/ 9

F/R Low beam

P5

P7

I nstrum en t / Fr ont G ro und /9

Lg Sb Left high beam

Sb

G/W

M

Right high beam

M

H/LP LEVEL'G DEVICE SW

F/L h i gh / lo w bea m

Left low beam

W

( 2.5ko)

F/ R hig h /lo w bea m

He adlamp adjusting switch

Br/W

Gr A17

A19

Front ISU B12

B1

F/L high beam 4

M a in L ig h t S w itc B ea m C h a n ge S wit c h ( Tu rn On T he H e a d la m p)

3

2

1

13

12

11

10

B4

L/W

Lg/W

O/B Ter m ina l F unct ion

B28

Lg/W

O/B

F/L low beam

L/W 9

8

B19

Br/W

G/W

Br/B 7

G/W 6

5

O FF Cle a ra n c e Lamp Hea d Lamp Low Beam H ig h Beam O v e rt a k in g

L

Installat ion position of high /low b eam

St e e r in g Sw it c h

φ R

6

触 点功率( W)

120 120

42

42

Lamp combina tion swit ch 31

11

ToInstrument 15#

11

11

Figure14-5 Head lamp Circuit

30

11

5．Night lamp adjusting circuit T he n i g ht l am p a djus t i n g c ir cu it i s show n as fi gur e 146 , t he br i g ht nes s ad j ustme nt of t he da r k l ight ( n i ght l am p ) i s c o ntro ll e d by t he k nob a t t h e l ef t l o w e r par t o f i ns t rum ent.

30 15 ACC1 ACC2 31 ILLUM

Front f og lamp s witch

T he da rkl i ght m ai n power i s suppl i ed by the C 1 1 pin of f r ont I S U.

ILLUM

Instal lation posit ion of night lamp and headlamp ad justing sw itch

GND

W

L/W

4

3

6

(2)31

(3)58b

L/W

W

1

Rear Wi ndshield Warmer Switch

2

5

4

3

6

5

W

1

Rear Fog Light Sw itch

2

L

R

G

C14 FrontGround/ Inst rument/ 2

L/W

3

6

1

Y

Br /B

A10 A13 B32

L

R

Front F og Light Switch

2

5

Fr ont Ground/ Instrument /B7

To In st ru ment 13#

(1)58

4

Front Ground/ Inst rum ent / B8

G /L

L

A22 A18B29

G

R

A24 A12 B13

F10 7.5A

V

Front ISU

F1 25A

C11

Fro nt I SU

F C7

Night lamp adjus ting switch

P

Figure14-6 Nig ht lam p adju sting c ircuit

6．Fog lamp circuit

C8

P

Front fo g lamp

Installation p osition of F /R fog lamp

F ront Gro und /Fr o nt Engi ne Comp artmen t/13

Front R ight Fog Lig ht

Installation position of F/L fog lam p

Front Left Fog Light

The 30th power line→ fuse FB29→ the E pin of front ISU→ fuse F1→ the C7、 C8 pin of front ISU to output, supply power to the front /rear fog l amp. The 30t h power line→ fuse Fb29→ the E pin of front ISU→ fuse F10→the C14 pin of front ISU to ou tput→sup ply power to the 3rd pin of front /rear fog l amp switch . The fog lamp circu it is show n as figure 14-7.

Installat ion position of R/L fog lamp

F igure14- 7 Fog La mp Circuit

31

8．Other position circuit diagram

7．CAN-BUS main line The CA N data bus designed by the BOSCH c ompany is applied b y Chery A5, sh own as fig ure 14-8. This enables the data communication of eac h compute r, and for ms the on-board network syst em. The in strument is con nectted to the engine EMS、A BS、front ISU computer by C AN line and sha re the dat a. The CA N end of instrumen t is 29、30； the C AN end of eng ine ECU i s 62、81；and the C AN end of front ISU is A25、A26. Mainta in way o f the CAN data tra nsmissio n system ①BUS line test The in spect of c onnect ca pability、 open circ uit or sho rt circuit、 com puter po wer or gro und. ② Clo se the ign ition swi tch, cont rol the u nit plug, and do no t con nect the wiring harness plug at the tim e. Test th e resistan ce between the 62nd and 81st pin of A5 en gine con trol unit, this is th e resistan ce val ue of the d ata trasmission end port, the prescripti ve value is 123Ω, if it is n ot so, plea se replace the engin e control unit. ③DTC logical d ecision. ④Sign al wavefor m test.

An ti-Theft Horn

Door Con tact Swit ch

Horn Sw itch

Fro n t ISU Fus e Front Engine Compar tment Cover Switch

Fr ont ISU A26

A25

Co mbination In strument 30

29

ECU 62

81

Front IS U F ront turn Lamp

C AN-H

I nstallatio n position of front e ngine co mpartmen t cover a nd trunk switch

CAN-L

Figu re14-8 CAN-BUS main li ne

Trunk Sw itch

32

Installation pos iti on of night l amp and headlamp adjusting switch

Diagnos is Plug

Rear ISU System 30 15 ACC1 ACC2 31 ILLUM

To front ISU A29

7

FB31 50A

FB3 7.5A

7

7

To front ISU A30 Re ar Wind sh ield G lass Hea te r r esisst or

L10

Conta ct Swi tch o f R ea r Lef t Do o r

Contact Switch of Rear Right Door

Trunk Lid LockMotor M

R

R

Lg/B

C1

DOWN

UP

Regulator Switch of Rear Left Door

Trunk Lam p Rear G round/Rear R ight Door/9 L

A16

Regulator Switch of Rear Right Door

UP DOWN

To the Front ISU Pe1 11# and Instrument, Combination Switch 2#

A6

30 15 ACC1 ACC2 31 ILLUM

Br

A22

Lg

B11

G/W

A9

A8

G/W

O

B3

B12

W

Rear Ground/Rear Right Door6 V

A7

A10

Rear Ground/ Rear Left Door /6

Y/B

Rear Ground/ Rear Left Door/10 Br

A12

A 11

G A13

FR 1 25A FR3 1 5A

F R2 30A

D1

HBRIDGE

B19

B

Br

FR5 15A

Rear ISU

HBR IDGE

B20

B8

B9

B4

B1

G

P

Y

Y

L

B13

Gr

B15

B16

B5

Gr

Br

O/B

A 4 A19

L/W

Y

Rear Ground/Rear Right Door/8

Rear Ground/ Right Rear Door/4

Rear Ground/ Rear Right Door/9

Rear Ground/ Rear fuse/E Rear Ground/ Rear fuse/F

Rear Ground/Rear Right Door/6

Gr M

Rear Left Regu lator Motor

31 CAN_H CAN_L

FR4 15 A

Y

G

L

Br

Br

L

Br/B

O/B

Gr

M

Reg ulator M otor o f Rear Right Door

Gr L/W Y 1

Rear Combination Light System

Rear Ground/Rear fuse/D

5 13 16

Radar M odule

7 8 15

V/W Lg/B G Left Probe

Middle Probe

Right Probe

Figure15-1 Rear ISU Syste m Circuit Diagram

33

The parts that controlled by the rear ISU have the following functions:

（1）Reverse warning control unit （2）Reverse warning R/L sensor （3）Reverse warning m id sensor

①Rear window galvanothermy wire time control

（4）Reverse warning R/R sensor

（1）Rear ISU

②Rear trunk lock motor ③Rear trunk illuminat ion lamp ④Reverse radar system ⑤Vehicle outside rear lamp （brakelamp、fog lamp、reverse lamp 、license plate lamp and so on） ⑥The rear left、right door window lifter motor ⑦Data transfer with front ISU

D Ground

（5）Rear ISU computer （6）Reverse switch The 1st pin of the reverse warning control unit is the pow er supply pin, it connects the B15 pin of rear ISU; the 5th pin is CLK， it connects to the A4 pin of rear ISU; the 13th pin is DAT， it connects to the A19 pin of rear ISU;the 16th pin is GND； th e 7th pin connect to the reverse warning R/L sensor; the 8th pin is connectted to the reverse w arning mid sensor;the 15th pin i s connectted to the reverse warning R/R sensor. The reverse warning system start to self-check when the ignition switch is turned on, if the ignition switch is not turned off, the reverse warning system will keep in active state, but the distance control fuction could only be started when the vehicle is put into gear. When the reverse warning system is in active state, the buzzer in the instrument will make a short signal sound. If the control unit finds trouble in the system during the self-check procedure, the buzzer will generate a 5s continuous sound. When put into the reverse gear, and if the vehicle is 1.5m away from the roadblock, the buzzer will start to warning. The sound frequency will increase with the shorten of the distance. And when there is only 25mm, the buzzer will generate continuous sound.

A wire plug 32

Rear ISU B15 Gr

A4 L/W

Y Rear ground/ Rear fuse/D

Rear ground/ Rear fuse/E

B plug 20

To 31st line

A19

Cpower Gr

Rear ISU fuse

1 POWER

L/W

Y

5 13 CLK DATA

16

7

GND

8 15

Radar Module

V/W Lg/B G

Fig ure15-2 Rear ISU Configuration

（2）Reverse radar system Th e Advanced reverse warning system is setted into The A5 , it is composed of the following parts:

34

Left Probe

Middle Probe

Reverse warning sensor

Figure15-3 Reverse Radar System Circuit

Right Probe

（3）Brake lamp a nd rev ersing lamp circuit The 30th wi re suppl ies power to the C1 pin of rear ISU via fuse Fb31, th e rear ISU gets el ectricity. The B1 pin of rear ISU is connect ted to th e left bra ke lamp、h igh-mou nted bra ke lamp and righ t brake la mp; the B4 pin is connect ted to th e rear left turn la mp; the B 15 pin i s connec tted to th e rear left reversing lamp、rear right reversin g lamp an d the 1st pin of reversing r adar ; B1 6 is connectted to the rear l eft dimmer、licen se plate lamp and rear righ t dimme r. 30

FB31 50A

Posit ive fuse box

R C1

FR3 15A

B4

FR4 15A

B1

Y

FR 5 15A

B13

L

Gr

Rear ISU

B15

B16

B5

Gr

Br

O/B

Rear Combination Light System

Instal la ti on p o siti on o f re ar right lam p

The in stallation p osition of rea r left lamp

Gr

Re versing lam p

Y

G

Rear fo g lamp

L

Br

Br

Bra ke lam p (dimm er)

License plate lamp

L

Br/B

O/B

Gr

High -mounted brake lamp

Turn lamp 31

Figure15 -4 Bra ke L am p a nd R evers in g L amp C ircuit

35

Instrument System 30 15 ACC1 ACC2 31 ILLUM

30 15 ACC1 ACC2 31 ILLUM FB22 7.5A

FB3 7.5A

Fuse Box G Plug-In Unit 4#

To Air Bag To Module Dynamo 10#

To ECU 59#

To To Air Conditioner Handbrak e Control Panel Module 10#

To Brake Shoe Thic kness Sensor

Instrument/Air Conditioner/1

ECU /A2/ 6

Fuse Box L Plug-In Unit 10#

Circuit Analysis：

Instrument/Front Ground/B4

To Sunroof Module 3#

Fuse Box G Plug-In Unit 7#

Instrument/ FrontGround/2 T o Fron t I SU Pl ug-In Un it 11#

Instrument/Front Ground/B5

Front Ground/Roof/4 Instrum ent/Air Bag/D#

To Combination Switch2#

11 N ormal Live Wire

13 Ignition Switch Power Supply

12 Backl ight Power Supply

17 Air Bag Alarm

Instrument/Front Ground/13

ECU/A2/16

16 Charge Indicator Light

27 Vehicle Speed Signal Input

18 Handbrake Indicator Light

Instrument/Front Ground/1

7 Vehicle Speed Signal Output

The A5 aut omobile c ombination instrum ent contains serie s of instr uments and met ers that show the vehicle status、all k inds of warning lamp that supervise the vehi cle to pre vent abno rmal performance and inform the driv er and indicator lamps th at show the driver how each part wor ks and al so illume the instr uments and met ers. The c ircuit is shown as figure 16-1. Th e Voltage of the battery supply to the 11th pin of combin ation inst rument via fuse FB22. The voltage of the 15 th wire w hich has gone thro ugh the i gnition switch supply to the 13th p in of com bination i nstrument via fuse FB3, it is for the fuel war ning lamp、 door open warn ing lamp、 engine oil warni ng lamp、 brake system w arning lamp、ABS warning lamp、ai r bag warning lamp and so on . Once the othe r end of these indica tors gain electricit y, they'll w ork. The 29th、30t h pin of the combination inst rument ar e connect ted to CA N wire, instruments are c onnectted to engin e EMS、 ABS、 fro nt ISU co mputer by CAN wire, they share data inf ormation. The inst rument s ystem ca n read D TC by apparat us, the 15t h pin of the combination instrument is diagnose wire.

32 Brake Shoe Alarm

To Combination Instrument

3

5

30

29

Engine Oil Pressure Alarm 9

Brake Fluid Level Alarm 2

Position of combination Ins trument

26

ECU/A2/11

Side Air Bag Warning Lamp 24

ECU/A 1/ 15

Instrument/ AirBag/B# Engine Oil Pressure Switch

10

6

Instrument/Front Ground/12

Brake Fluid Level Sensor

Engine Oil Pressure Switch

Front Ground/Rear Ground B/D#

Brake F luid Leve l Sensor 10

CAN Line Wake Input 31

Diagnosis O il Level Signal Input Line 21 15

TO Bag Module 47#

3

To Front ISU PEI Plug-In Unit 2#

Fuel Level Sensor

To Diagnosis Port 7#

Fuel Leve l Sensor 8

Ground CAN-H CAN-L

Figure16-1

36

Instrument System Ci rcuit D iagram

Wiper System 30 15 ACC1 ACC2 31 ILLUM

Wip e r Mo tor b u ild in P lac e

FB12 15A

W iper System Circu it Analysis: W ip e r Mo to r P la ce

2

3

4

5

6

7

8

W ip e r Mo to r

5

9

MIST OFF

Wiper Switch

W iper M otor

M

INT LO HI

2 4

3 1

WASH Wiper Sw itch

C17

A15

B23

C19

C18

Front ISU Figur e17-1 Wiper System Circu it Diag ram

M Washer Motor

The wi per system ciruit is s hown as fi gure 17-1 . The ACC2 power supply w ire supplies power to the C19 of front ISU、the 3r d、7th、8th pin of w iper switch via fuse F B12. When the wiper switch is set at the HI positio n, the 2nd、3rd pin of the wiper switch are conne ctted, the ACC2 pow er supply wire→the 3rd pin of wiper sw itch→the 2nd pin of wiper swit ch→the 2 nd pin of w iper motor→the 5th pin of wiper motor→ the 31st line are connectted to ground. The wipe r motor wi ll work in high speed then. When the wiper motor is set at the position o f LO, the 3rd、 4th pin of wiper switch are conne ctted, the ACC2 pow er supply wire→the 3rd pin of wiper sw itch→the 4th pin of wiper swi tch→the 4 th pin of w iper moto r→the 5th pin of wiper motor→ the 31st line are connectted to ground. The wipe r motor wi ll work in low speed then. When the wiper switch is set at the W ASH position, the 8t h and 9th pin are connectted, the ACC2 power supply wire→8t h pin of wiper switch→9th pin of wiper switch→washing motor→the 31st line are connectted to ground. T he washing motor will spew wat er then. When the wiper switch is at the position of INT, the 4th、 5th pin are connectted, 6th、7th pin are connectted, when the wiper switch input intermission signal to the front ISU via A15pin, the inner relay of front ISU will electrify for 0.5s. After 0.5s,The ACC2 power supply wire→the 1st pin of wiper Motor→the 3rd pin of wiper Motor→ the C18 pin of front ISU→the C17 pin of front ISU→ the 5th pin of wiper switch→the 4th pin of wiper switch→the 4th pin of wiper motor→the 5th pin of wiper motor→the 31st line are connectted to ground. The wiper motor wi ll work in low speed then. the motor will operate for one circle and stop at the stop position with the contr ol of wiper motor cam plate switch circuit. If the i nput time of washer switch is over 0.3s , the inner washer o f front ISU will elec trify. Whe n the was her switch is in the connect position, the wiper motor will continue to work. If the washer switch i s disconn ected aga in, the motor will co ntinue to o perate for 2 circles.

37

Powe r Rea r View Mirr or Sys tem

Power Rear View Mirror System Circuit analyse：

30 15 ACC1 ACC2 31 ILLUM

The power rear view mirror is shown as figure 18-1. When the ignition switch is set to the position of ON or ST, the voltage of the battery gets to the 15th wire→7.5A fuse Fb2→7th pin of 9

9

power rear view mirror switch, the power rear view mirror get voltage. 1．The rear left view mirror incline to up and down, turn left and right circuit （1）Rear left view mirror

FB2 7.5A B

LEFT

DO WN

LEFT RIGHT

Rear left view mirror upwards: choose the L button on the control switch panel, press

L19

Power Rear V iew Mirror Switch

8

0

7

UP

the UP key of the control switch, the 7th and 6th pin of rear view mirror switch are connectted, the 3rd and 8th pin are connectted, the power go through the 7th pin of control switch→ 6th

1

pin→rear left view up and down control motor→ 3rd pin of rear view mirror →8th pin→ ground. The rear left view mirror will move upwards then.

DO WN

RIG HT

UP

Rear left view mirror downwards: press the DOWN key of the control switch, the 7th and 3rd pin of rear view mirror switch are connectted, the 6th and 8th pin are connectted, the power go through the 7th pin of control switch → 3rd pin→ rear left view up and down control

LH MRRDR

RH MIRR DR

To Front ISU PP3 16#

RH MIRRDR

motor→ 6th pin of rear view mirror→ 8th pin → ground. The rear left view mirror will move down-wards then. Rear left view mirror move to left： press the LEFT key of the control switch, the 7th

L H Mirr or

4

2

5

3

6

W/B

LG

R

R

R

Powe r Rear V iew M irror S witch

motor→ 2nd pin of rear view mirror →8th pin→ ground. The rear left view mirror will move left

Front Ground/ Front Left 1/5

then.

Front Grou nd/Front Left 1 /3

Rear left view mirror move to right： press the RIGHT key of the control switch, the

Front Ground/ Front Right/14

7th and 2nd pin of rear view mirror switch are connectted, the 6th and 8th pin are connectted, the power go through the 7th pin of rear view mirror→ 2nd pin→ rear left view left and right

Fron t Ground/Front Right/15 Fr ont Ground/ Fr ont Right /13

R ear Right Vie w Mirro r

- LR + + UD + + -

M

control motor→ 6th pin of rear view mirror→ 8th pin→ ground. The rear left view mirror will

Front Ground / Front Left 1/4

Front Ground/ Front Left 1/14

Re ar Left V iew M irror

Re a r Right V iew Mi rror

+

M

LR

+ -

+ UD + -

move right then. （2）The rear right view mirror Rear Left Vi ew Mirror

M M

Figure18-1 Pow er Rear View Mirror Circuit Diagram

38

and 6th pin of rear view mirror switch are connectted, the 2nd and 8th pin are connectted, the power go through the 7th pin of rear view mirror→ 6th pin →rear left view left and right control

The working principle of the right rear view mirror is the same with the left. Choose the R button on the control switch panel, when press the UP button , the 7th and 6th pin of rear view mirror switch are connectted, the 5th and 8th pin are connectted; when press the DOWN button, the 7th and 5th pin of the rear view mirror are connectted, the 6th and 8th are connectted; when press the LEFT button, the 7th and 6th pin of the rear view mirror are connectted, the 4th and 8th are connectted; when press the RIGHT button, the 7th and 4th pin of the rear view mirror are connectted, the 6th and 8th are connectted. 2．Demist part circuit There is demist circuit in the left and right power rear view mirror, when press the demist switch, voltage from the ISU PP3 16# connect to 31st ground wire via rear left、 right view mirror heating wire.

Power Window of Fr ont Door & P ower D oor Lock System 30 15 AC C1 ACC2 31 ILLU M

Re ar Righ t Do or Lo ck M ot or

Fro nt R igh t Doo r Loc k M oto r

Rea r Le ft D oor L ock M otor

F ron t Le ft D oor Lo ck Mo tor

Cen ter Con tro l Fr ont Rig ht Do or P ower W indo w Bu tton

Mo tor contr ol wire Door contact switch

M

M

M

B

M

Front L eft Do or Power Window M otor

Mo tor

M Rear G round/ Rear Left /3

Re ar Ground / Rear Right /3

Fron t Ground / Fron t Right / 7

Fro nt Gr ound / Lef t 2/6

1

2

R ear Gro und/ R ear Rig ht /7 Front G round/ R ear Gro und/3

Fro nt G round/ R ear Gr ound/11

Rea r Grou nd/ Rea r Left/7

Front G round/ R ear Gro und/3

D

A

UP

C

M DOWN

UP

DO WN

Door lock switc h

C en ter Con tro l Bu tton Front Groun d/ Rear Ground/2

Front Ground/ Front Right /6

F ro nt Gro un d/ L eft 2 /7

Elevato r Mo tor Fron t Groeund/ Left 1/13

Front Groun d/ Fron t Right /6

Front Grou nd/ Left 1/12

Fr on t Gro un d/ Le ft 2/ 5

F ro nt G r ou n d / F ro nt R ig ht /9

Front Ground/ Left 1/ 9

Front Ground / Lef t 1/1

T o Wi per S witch 3#

T o Wiper Switch 4#

Fro nt Left Door Loc k Motor

L

C wire plug 20

P/L

Y

D5

B31

D4

L

R

B15

B18

V/R D 10

Y

V/W D9

P

D 12 D11

G A15

O/G B23

E power D wire plug 12

Fro nt IS U A wire p lug 32

B wire plug 32

A 20 A21 Y/B

Fro nt IS U

F ground

B2

V/B

In strument/ FrontGrou nd/C 7

B9

W

B26

Gr/W

B25

LG

Br

B11

B10 B27

P

G

A5

Y Instr ument/ Front Grou nd/C 7

Ins trument/ Front Ground/C9 F ront Gr ound/ F ront Ri ght Doo r/B

Front Ground/Front Right Door/C

6

Fron t Grou nd/2/16

Fro nt Grou nd/ Left 2/3

7

Front Ground/ Front G round/ Left 2/15 L eft 2/12

3

Front Right Door Power Window Switch

13

16

Front G round/ Front Gro und/ Left 2/1 4 Left 2/4

4

15

8

Ch ild Safety Lo ck

LG

C18 B/W

C 17 B

Ins trument/ Front Ground/C7

Front Ground / Front Ground/ Front Left Door 2/1 Left 2 / 2

5

C 19

A6

B/W V

Front Ground / Front Left Door 2 /14

6

7

F ro nt Lef t D oo r

T o W iper S witc h 2#

To W ipe r Swit ch 3 #

To Wip er Sw itch 6#

C en tral control button

9 31

Figure19-1

R ear Rig ht Do or Po wer W in d ow S w itc h

R e ar L eft Do or Po we r Win do wS wit ch

F ron t R igh t D o or P ow er Wi ndo w Sw itc h

F ro nt R igh t D oo r Po we rWi ndo wS wi tch

Power Window of Front Door & Power Door Lock System Diagram

39

Power W indow of Front Do or & P ower Door L ock Cir cuit analyse： The circuit analysis of fron t door window lifter and four doors lock. Please re fer to fig ure 19- 1.

Electric Seat System 30 15 ACC1 ACC2 31 I LLUM

1．p ower w indow The power window system c ircuit is composed of power wi ndow main switch tha t set at the front left door、three p ower wi ndow switches th at set at the th ree doors、four window motor and front、rear ISU computer. The power w indow button o peration set is th e device to have the F/L、 F /R、 R/ L、 R/R window go up a nd down automa tically. In th e 40s aft er turning off the ignition power, the wind ows' mo vement c an b e controlled, and after 40s , there will be no response. The front ISU receives the up or down signal fr om the p ower wi ndow main switch to drive the power w indow motor wo rk to open or clo se the wi ndow. The 2nd pin of ISU is connect ted to the children safety l ock. Wh en press the safety switch on the power window main switch, signal is sent to the front ISU,whic h cut off the rear door power window motor to p revent t he rear seat window working. This will enable the pas senger, especially childre n to misso pen the window and resu lt in accident.

The upwards and dow nwards adjust ing swi tch of the seat front par t

FB21 30A C4

Seat back rest incline adjusting switch

The forwards and backwards sliding s witch of seat The upwards and downwards adjusting swi tch of the seat rear part 1

Reg ulate switch

2 FWD BKD

4

3

D

U

5

6

D

U

8

7

FWD BKD

10

9

2．Central lock The vehicle d oor control set i s at the d river sea t side. W hen the driver op en o r close th e door, the open and clo se signal from the minisiz e switch in the do or lo ck will be sent to the B31 and B15 pin of f ront ISU. The ISU computer cont rol th e door l ock mot or work accordin g to the open or close signal from the D4 a nd D 5 pin of ISU. If us e the ma nual key（outer） or button at the drive si de（inner） to lock o r unlock, the four doors w ill response imme diately. If pr ess the lo ck/unlock button on the remote controlle r when pull out the ig nition k ey from the lock core, the four doo rs will b e locked immedia tely. Th en, th e anti- theft sys tem will get into the acti vation or release state. If one doo r is n ot closed well, then use th e remot e controller to lo ck, all th e four doors will be lo cked or unlocked right aw ay .

M

M

T he upwards a nd The upwards and downwards downwa rds adjusting d ynamotor adjusting dy namoto r of the of the seat front part seat rear par t

M The forw ards and backward s sliding dynam otor

M Se at backrest incl ine adjusting dynamotor

Figure20-1 Elec tric se at 8 D irection al A djust C ircuit

40

Electric Seat System C ircuit Analys is： The driver seat of A5 is elec tric adjust able seat. It has four adjusting m otor and adjust control switc h. The adj usting mot or is perma nent magnet motor. I t realizes t he the circ umvolve

（3）Up wards an d downw ards of s eat rear part When press the UP button of t he seat's r ear part, battery voltage that r eaches the

from frontisp iece to inv erse with t he differen t electrifi ed directio n of each m otor . So, the four adjusting motors enabl e the seat t o move towards 8 directions suc h as front、rear、up、 down、 grad ient and so on. The 8 directions adjustabl e seat circu it is shown as figure 20-1.

1st p in of adjusting switch via the U P contact point of s eat's adjus ting switc h→the 7th pin o f seat's adjusting sw itch→the front seat up and down motor→ the 8th pin of seat's adjusting switch→the UP contact point of seat's adjustin g switch→ the 2nd p in of seat's

The pos itive voltage of battery→positi ve fuse box 120A fuse Fb28→30th line→3 0A fuse Fb21→the 1 st pin of electric seat adjusting switch.

adjusting switch→the ground point near the h and brake→Negativ e of batter y, then the rear part of seat will move upwards. When pre ss the DO WN button of the sea t's rear pa rt, battery voltage th at reaches

（1） Upwards and downwards o f seat fr ont part When p ress the U P button of the front seat's part, battery vo ltage that reaches th e 1st pin of adjusting switch via the UP co ntact poin t of seat's adjusting switch→ the 5th pin of seat's adjusting switch→the front seat' s up and down motor→ the 6th p in of seat adjusting switch→

the 1 st pin of a djusting switch via the DOWN contact po int of seat 's adjustin g switch→ the 8 th pin of s eat's adjusting switch→the front seat up and down motor→the 7th pin of seat' s adjusting switch→t he DOWN contact point of seat' s adjusting switch→the 2nd pin

th e UP cont act point of seat adjusting switch→ the 2nd pin of seat adju sting switch→ the gr ound point near the hand brake→Negativ e of batte ry, then th e front part of seat w ill move upwards. When p ress the D OWN butt on of the fr ont seat's part, batter y voltage t hat reaches the 1st pi n of adjust ing switch via the DO WN conta ct point of seat's adj usting swi tch→the 6th pin of seat's adjusting switch→ the front seat up and down motor→ th e 5th pin of seat's a djusting

of se at's adjust ing switch→the grou nd point n ear the ha nd brake→ Negative of battery, then the rear pa rt of seat w ill move d ownwards.

switch→the DOWN co ntact poin t of seat's adjusting switch→th e 2nd pin of seat's a djusting switch→the ground point near the hand brake→Negat ive of battery, then the front part of seat wi ll move do wnwards.

adjusting motor→ the 10th pin of seat's adjus ting switch→ the FR ONT incline contact point of seat's a djusting switch→the 2nd pin of seat's adjusting swit ch→the gr ound point near the hand b rake→Neg ative of ba ttery, then the front p art of seat will inclin e forwards . When pre ss the REAR incline button o f the seat backrest , battery v oltage that

（2）F orwards and bac kwards o f seat When p ress the F RONT button of the seat , bat tery voltag e that rea ches the 1 st pin of adjusting switch via the FRONT contact poi nt of seat's adjusting switch→t he 3rd pin of seat's adjusting switch→the forwards a nd backwa rds sliding motor→t he 4th pin of seat's a djusting switch→the FRONT co ntact point of seat's adjusting switch→the 2nd pin of seat's a djusting switch→the ground point near the hand brake→Negative of batt ery, then the front pa rt of seat wi ll move forwards.

（4）Th e forward s and ba ckwards adjustment of backrest When press the FRO NT incline button of the seat backrest , battery v oltage that reaches the 1st pin of adjusting swi tch via the FRONT c ontact poi nt of seat's adjusting switc h→ the 9t h pin of seat's adjus ting switc h→ the backrest forw ards and backwards

reaches the 1st pin of adjusting switch via the REAR c ontact point of seat's adjusting switc h→the 10 th pin of s eat's adjusting switc h→ the ba ckrest forwards and backwards adjusting moto r→the 9th pin of sea t's adjusting switch→ the backwards incline contact point of seat's a djusting switch→the 2nd pin of seat's adjusting swit ch→the gr ound point near the hand brake→ N egative of battery, then the front part of seat will incline backwards.

When p ress the R EAR but ton of the seat , batt ery voltag e that reac hes the 1st pin of adjusting switch via th e REAR contact poin t of seat's adjusting switch→the 3rd pin of seat's adjusting switch→the forwards a nd backwa rds sliding motor→t he 4th pin of seat's a djusting switch→the REAR contact point of seat's adjusting switch→ th e 2nd pin of seat's a djusting switch→the ground point near the hand brake→Negat ive of battery, then the front part of seat wi ll move ba ckwards.

41

S eat Heater Sys tem

S eat Heater System Circuit Analysis：

30 15 ACC1 ACC2 31

（1）Front lef t seat he ater

I LLUM

◆Control circ uit FB6 15A

When press the front left seat heating switch, the voltage of ACC2 wire→ 15 A Fb6 fu se→2nd p in of front left sea t heating switch→contact point of f ront left seat heating switch→ 4th pin of front left seat h eating switch→1s t pin of f ront left seat heating set→3rd pin of fr ont left seat heatin g set→gr ound.

L16

Gr een Black

Red

Gre en Black 2

1

2

◆Main circuit

R ed 1

The p ositive p ole of ba ttery→FB 32 fuse in positiv e pole fu se box→ 2nd pin of the front left seat heating set→go through the heating wire and relay contact point in th e front le ft seat he ating set→3rd pin of the front left seat heating set→ ground. Th e front le ft seat he ater heat ing then. The v oltage of ACC2 w ire→15A Fb6 fuse→2nd pin of front left seat heating sw itch→contact poi nt of front left seat heating switch→ 3rd pin of front left seat heating switch→ground. The left heat indicator lamp light on.

The installati on position of seat heating switc h

Front Left Seat He ater Switc h

Fron t Right Sea t Heater Sw itch

4

4

3

3

To P ositive Fuse Box Blac k/White

F/L seat heating switc h

1

（2）Front rig ht seat h eater

B lack

Black/White

2

1

◆Control circ uit

Black

When press the front ri ght seat heating sw itch, the voltage of ACC2 wire→ 15 A Fb6 fu se→2nd pin of fro nt right seat heat ing switc h→conta ct point of front right seat h eating sw itch→ 4th pin of front right seat h eating sw itch→ 1 st pin of fro nt right seat heati ng set→3 rd pin of front rig ht seat he ating set→ground .

2

◆Main circuit The p ositive p ole of ba ttery→FB 32 fuse in positiv e pole fu se box→ 2nd pin of the front right sea t heating set→go through the heating wire and relay contact point in th e front r ight seat heating set→3rd pin of the front r ight seat heating set→ground. The front right seat heater heating then. The v oltage of ACC2 wire→ 1 5A Fb6 fuse→ 2n d pin of front right seat heating swi tch→con tact point of front right seat heating switch→ 3rd pin of front right seat heating sw itch→gro und. The right he at indica tor lamp light on.

3 3 F/R seat heating switch

F ront Right Seat Heat er De vice

Front Left Seat Heater Device

Rear seat heating s witch

31 8

8

Figure21-1 Seat Heater System Circuit Diagram

42

8

Audio System

Cir cuit Analysis : The circui t of the acoustics is shown as f igure 22-1 . The aco ustic syste m possess the fuctio ns of tape play、radio listenin g 、broad cast frequency memory、sound control、front/rea r/left /righ t reprod ucer volum e and so on. The voltage from bat tery direct ly supplie s to the 16th pin of acoustics and the 16th pin of dia gnose port via the 15A fuse Fb23. The night I LLUM wire supplies power to the 14th pin of acous tics, and light up the acoustic night lamp. The 11th pin of acoustic is connectted to antenna that with amplifier to receive br oadcast si gnal from broadcasti ng station. There are six horns on the vehicle, the R /L horns are connectted to the 6th、7th pin of ac oustics; th e R/R hor ns are connectted to the 9th、 8th pin of acoustics; the F/R and F/R a lt horns ar e connec tted to the 5th、4th pin of acoustics; the F/L and F /L alt horns are conn ectted to t he 2nd、3rd pin of a coustics. 30 15 AC C1 AC C2 31 ILLU M

30 15 AC C1 AC C2 31 ILLU M

11

Re ar Wind s hield A nt enna R ear W ind shield A ntenn a

Front Ground/Rear G round/1

Fr ont IS U PP 3/3

Audio System

G/6 Instrume nt/Front Ground/A3

Instrument/Front Ground/D4

O

Au dio S ystem place

FB23 15A

A m plif ier

A m pl ifier

Br 15

11

To Diagnosis Port 16#

L 16

Aud io S ystem 1

9

14 W

Lg/B

8

Ins trument/ Front Gr ound/C4

V

4

3

Y/G

2

Y

Y/L

7

6

Br

B

Instrument/ Front Ground/C3 Instrument/ Front Ground/C11

Instr ument/ Front Ground/ C12

Front Ground/ Front Right /10

Front Ground/ Front Right /11

+

_

Rear Ri ght h orn

Instr ume nt/Fro nt Ground/C5

+

Instrument/ Front Ground/C2

Instrument/ Front Ground/C6

_ Front Ground/Front

Front Ground/ Rear Ground/4

Front Ground/ Front Left 1/11

Left 1/10

Instrume nt/ Fron t G roun d/ C1 Front Ground/ Rear Ground/12

Front Rig ht alt ho rn

Front Ground/ Rear Ground/13

Front Ground/ Rear Ground/5

Rear Right horn

5

V

+

_

Front Righ t D oor hor n

+

_

Front Left D oor horn

+

_

Front Lef t horn

+

_

Re ar Le ft h orn

F igure2 2-1 Au dio Sy stem C ircuit Diagra m

43

Audio System

Cir cuit Analysis : The circui t of the acoustics is shown as f igure 22-1 . The aco ustic syste m possess the fuctio ns of tape play、radio listenin g 、broad cast frequency memory、sound control、front/rea r/left /righ t reprod ucer volum e and so on. The voltage from bat tery direct ly supplie s to the 16th pin of acoustics and the 16th pin of dia gnose port via the 15A fuse Fb23. The night I LLUM wire supplies power to the 14th pin of acous tics, and light up the acoustic night lamp. The 11th pin of acoustic is connectted to antenna that with amplifier to receive br oadcast si gnal from broadcasti ng station. There are six horns on the vehicle, the R /L horns are connectted to the 6th、7th pin of ac oustics; th e R/R hor ns are connectted to the 9th、 8th pin of acoustics; the F/R and F/R a lt horns ar e connec tted to the 5th、4th pin of acoustics; the F/L and F /L alt horns are conn ectted to t he 2nd、3rd pin of a coustics. 30 15 AC C1 AC C2 31 ILLU M

30 15 AC C1 AC C2 31 ILLU M

11

Re ar Wind s hield A nt enna R ear W ind shield A ntenn a

Front Ground/Rear G round/1

Fr ont IS U PP 3/3

Audio System

G/6 Instrume nt/Front Ground/A3

Instrument/Front Ground/D4

O

Au dio S ystem place

FB23 15A

A m plif ier

A m pl ifier

Br 15

11

To Diagnosis Port 16#

L 16

Aud io S ystem 1

9

14 W

Lg/B

8

Ins trument/ Front Gr ound/C4

V

4

3

Y/G

2

Y

Y/L

7

6

Br

B

Instrument/ Front Ground/C3 Instrument/ Front Ground/C11

Instr ument/ Front Ground/ C12

Front Ground/ Front Right /10

Front Ground/ Front Right /11

+

_

Rear Ri ght h orn

Instr ume nt/Fro nt Ground/C5

+

Instrument/ Front Ground/C2

Instrument/ Front Ground/C6

_ Front Ground/Front

Front Ground/ Rear Ground/4

Front Ground/ Front Left 1/11

Left 1/10

Instrume nt/ Fron t G roun d/ C1 Front Ground/ Rear Ground/12

Front Rig ht alt ho rn

Front Ground/ Rear Ground/13

Front Ground/ Rear Ground/5

Rear Right horn

5

V

+

_

Front Righ t D oor hor n

+

_

Front Left D oor horn

+

_

Front Lef t horn

+

_

Re ar Le ft h orn

F igure2 2-1 Au dio Sy stem C ircuit Diagra m

43

Sun roof & Cigarette Lighter System 30 15 ACC1 AC C2 31 ILLUM

Circuit Analysis： 1. The voltage of the 30 th wire supply to the 1st pin FB6 30A

C1

Sun ro of Switch

of sun roof system via fuse F b17; The voltage of the 30th wire supply to the 4th pin of s un roof s ystem via fuse FB24

FB17 20A

FB6 15A

FB24 5A

G19

G8

G5

Roof/Front Ground/F

F ront Ground / Instrument/D2

Front Ground/ Instru ment/D5

and then k ey switch signal, the 4th p in of the sun roof is controlled by key si gnal swit ch; the 5th and 6th pin of the sun roof system are connect ted with the sun roof switch,

4

Key Switch

Su n roof S witch

Su n roof

Roof/Front Ground/A

Roof/ Front Ground/B

Gr

Cigarett e Lighter

Y

External Power Supply P lug-In Un it

6

1

Su n roof Mot or 2 B

Y Roof/Fro nt Ground/D

Instrume nt/Fro nt Ground/7

11

To Instrumen t 7#

Roof/Fron t Ground/C

9

31

Figu re23-1 Sun roof & C igaret te Ligh ter System Ci rcuit D iagram

44

the 30A fus e Fb6. W hen press down the lighter switch, the lighter gain the ele ctricity a nd heati ng thread work, the indicator lamp light on. Th e two en ds of the cigarette lighter parallel are c onnectte d to the outer pow er.

4

M Mo tor

3

To Fron t ISU Pe2 7#

L

B/W 5

roof modul e conenct to groun d near th e hand brake. 2. Th e 30th wi re suppli es to the cigarette lighter via

Inst rument/Fro nt G round/3

3

5

when press down th e button, the volt age of the 15th wire via the 15A Fb6→ sun roof switch→ supply power to the 5th and 6th pin of sun roof system; th e 2nd pin of the sun

Sun roof System

Circuit of the Front Engine Compartment Fuse Box FB29 80A

_ + B attery

FB22 75A 86

87

86

FB25 10 A

SB 4 10A

SB5 40A

FB21 3 0A

SB8 6 0A

FB19 30A

SB6 30A

FB24 5A

87

High beam relay 85

FB23 75A

30

FB26 10A

85

30

FB2 7 15A

FB2 4 15A

P7

P6

L11

86

P2

P11

FB1 5 75A

G4

G7

G6

A1

A2

C4

D1

E10

C1

87

FB16 15 A

SB 1 30A

86

87

STARTER EMS RELAY RELA Y

85

P 15

J8

86 FB8 75A

30

85

K15

85

AC C RELAY 30

K 16

85

87

30

AC C REL AY

86

87

85

30

I GNITION RELAY

F B4 5A

C19 G 14

P5

87

85

K18 K17

86

J10

J9

K 10

C7

C5

G13

K9

86

P4 L16 G 18 K14

L14

K7

FB5 5A

FB7 10A

F B6 1 5A

85

E7

P1

L9

L19

K8

G20

G8

SB 7 30 A

86

87

87

SPARE RELAY

30

P8

L10

FB2 75A

30

87

85

FB1 5A

5 7 75 1 5 5 0

A/ C CLUT CH RELAY

30

G15 G11 P12

SB3 30A

FUEL PUMP RELAY

30

P10

F B20 15 A

FB9 75 A

FB3

FB1 8 20A

I gniti on swit ch

SB 2 30 A

87

FB13 FB17 20A

L12

86

86 Lo w be am re lay

E6

E12

SPARE RELAY

30

85

G1 7

P3

30

L18

G16

C6

G3 G2

G1 K1 L5

G1 2

L4

L 3 L2

L1

G 21 G22 G10 G 9

Figure 24-1 Circuit of the Front Engine Compa rtment Fuse B ox

45

Front Engine Compartment Fuse Box

Relay Box Po wer of instru ment 、 fron t ISU and combin ation switch illumin ation the 15th wire

ABS

Po wer rear view mirro r

Power of air bag Power of A/C 15th wire

Power of ECU 15t h wire

Ignition switch relay

Front oxygen sensor

EMS main relay Rear oxygen sensor

R1

Fuse

EMS main power

Starter motor

P owe r of EMS Fue l main A/C rela y R6 rela y p um p Fuel R7

R5

Starter relay

Reserve R2

pump

A/C R8 clutch

R3

Reserve Right low beam

A/C blower

ACC relay R9

Tran smi s sion control un it

Low High beam R10 beam R11 relay relay

B+

AB S c ontrol le r

A/C clutc h

A/C seat

Radio Ignition 30th switch Transmissi wire on control unit

EC U15 pin power

Standby

A BS

A/C 15 pin power

Motor rear mi rror

Front oxygen sensor ABS p ump

Power of instrument 30th wire A BS pu mp

Ignition relay R4

Left hig h b ea m

Ri gh t hi gh b e am

Left low b eam

F ron t eng in e c o mpar tmen t fu se bo x

ABS controller

A irbag power

ACC relay

Rear oxygen sen sor

Standby

EMS main relay

Fuel pump

EMS main relay power

A/C clutch

Fuse cl amp

Electric adjusting seat

EMS main power

Instrument 30 pin power

Standby

Radio 30 pin

Cigarett e lig hter

Ignition switch

Standby

Standby

Wiper

Transmission control unit

Starti ng motor

Left high beam

A /C blow er

Right high beam

Starti ng rela y

Left low beam

Standby

ACC relay High beam relay

46

Instrument 、 front ISU or combination swit ch light 15 pin power

Right low bea m Low beam rel ay

Circuit of the Front Engine Compartme nt Fuse Box Circuit Analyse ： 1．Voltage of battery→fuse FB29→fuse FB22→the C4、C7 pin of C ircuit of the

voltage of batter y→FuseFB29→fu se FB19→the E10 pin of Ci rcuit of the Front Engine Compart ment Fuse Box→s upply po wer to TC U。 7．Voltag e of battery→Fuse FB29→fuse SB6→the C1 p in of Circ uit of the Front E ngine Co mpartment Fuse Box→supply power to ignition lighter

Fro nt Engin e Compartment Fuse Box→supply power to in strument At the same tim e, Low be am relay and Hig h beam relay coil get elect ricity ，a nd relay contact point cl ose: voltage of batte ry→fuse FB29→ contact point of high beam relay →f use FB25→ Fro nt left High Beam Fuse F B26→Fro nt Right High Beam Voltage of battery→fuse FB29→ contact p oint of Low beam relay →f use FB25→ Fro nt left High Beam Fuse F B26→Fro nt Right High Beam

S4 ABS P ump T h e 30th wire of F23 radio S5 ABS Controller S 6 Rese rve

F2 1 pow er seat

F19 T r ansmission contro l unit

S8 Transmissio n control un it

Figure 2 4-3 R ight low bea m L ow beam rela y H igh beam re l ay L eft low beam R ight high be a m L eft high beam F 2 4 Ignition s witch

Figur e 24-2

2． Voltage of batter y→ Fuse FB29→f use FB23→the G6 pin of Circuit of th e Front Engine Compartment Fuse Box→supply power to radio 3． Voltage of batter y→fuse FB29→fu se SB4→the A1 pi n of Circuit of the Front Engine Compartment Fuse Box→supply power to AB S PUMP。 4． Voltage of batter y→fuse FB29→fu se SB5→the A2 pi n of Circuit of the Front Engine Compartment Fuse Box-su pply pow er to ABS EBCM。 5． Voltage of batter y→fuse FB29→fu se FB21→the C4 pin of Cir cuit of the Front Engine Compartment Fuse Box→supply power to electric seat 6． Voltage of batter y→fuse FB29→fu se SB8→the D1 pi n of Circuit of the Front Engine Compartment Fuse Box→su pply power to TCU。

8． Voltage o f battery→ fuse F B29→ fu se FB24→ the C5 pin of Circuit of the F ront Engine Comp artment Fuse Box→supply power to Ignition switch。 （1）The 75th Line Ig nition sw itch→the G11 pin of Circuit of the F ront Engine C ompartment Fuse Box→ A CC relay coil get electrici ty； Voltage of ba ttery→ fuse F B29→ACC relay contact p oint and then supply to : ①Fuse Fb1 3→the L 14 pin of Circuit of the Fro nt Engin e Compa rtment Fu se B ox→Air Conditio ner Blower。 ②Fuse FB10→the L1 6 pin ofl Circuit of the Front Engin e Compartment Fuse B ox→Seat Heater。 ③F use FB12→ the G1 8 pin of Circuit of the Fro nt Engin e Compa rtment Fu se B ox→Wiper（ISU） 。 （ 2） The 15 th pin o f Ignition switch→ the G1 5 pin of Circuit of the Fr ont E ngine C ompartm ent Fuse Box→ I gnition R elaycoil get electricity； Voltage of b attery→fuse FB29→Ignition relay contact point and then supp ly to : ① F use FB4→ the L9 pin of C ircuit of the Front Engine Compartment Fuse B ox→Airbag Modu le。

47

② Fu seFB3→ the L10 pin of Circuit of the F ront En gine Co mpartme nt Fuse B ox→Inst rument/ ISU/DL C。 ③F use Fb1→the K7 p in of Circuit of the Front Engine C ompartment Fus e Box→ A BS Mod ule。 ④ F use FB2→ the L19 pin of Circuit of the F ront En gine Co mpartme nt Fuse B ox→Power Rear View M irror。 ⑤F use FB5→the K8 p in of Cir cuit of the Front Engine C ompartment Fuse Box→ E MS。 ⑥ F useFB7→ the G20 pin of Circuit of the F ront En gine Co mpartment Fuse B ox→Air Conditioner 。 （3） The 50 th line Ignition s witch→t he G13 pin of Circuit of the Fron t Engine C ompartment Fuse Box→Starter Relay coil get electricity： Voltage of battery→ fuse FB29→ fuse SB2→ Sta rter Relay contact poin t-the J8 p in of Cir cuit of th e Front Engine C ompartment Fuse Box→Starter 9．V oltage o f battery→fuse FB 29→fuse FB15： one line supplies to the K15 pin of C ircuit of the Front Engine Compartment Fus e Box→s upply po wer to EMS；ano ther line supply to EMS Relay→ EM S， whe n the EMS Relay coil ge t electricity， the contact p oint close，voltage of battery→fuse FB29→ fuse SB 1→EMS Relay c ontact point, and then the power supply is as f ollow:

② fuse FB9→ the K17 pin of Circuit of the Front Eng ine Compartment Fuse Box→Re ar Oxygen Sensor Warmer。 ③T he J10 p in of Circuit of the Front E ngine Com partme nt Fuse B ox→EMS。 ④T he J9 pi n of Circu it of the Front En gine Com partmen t Fuse Box→Electronic Fan ⑤F uel Pump Relay→the K1 0 pin of Circuit o f the Front Engine Compar tment Fuse Box→EMS. When Fu el Pump Relay get electr icity，the contac t point cl ose， voltage o f battery→fuse F B29→fuse FB16→ Fuel P ump Rel ay conta ct→the C 7 pin of Circuit of the F ront Eng ine Comp artment Fuse Box→Fuel P ump ⑥A /C Clutch Rela y→the K 9 pin of Circuit o f the Fron t Engine Compar tment Fuse Box→EMS.When A/ C Clutch Relay g et electr icity，th e contact point cl ose， voltage of battery→fuse Fb29→fus e FB20→A/C Clutch Re lay conta ct→the P8 pin of Circuit of the F ront Eng ine Comp artment Fuse Box→Air Co nditione r Clutch

F9 Rea r oxygen se nsor

S1 EMS ma in power

F8 Front oxygen senso r F4 Power of airbag

F3 Power of instrument 、 front ISU an d combination switch illum ine 15th line

F10 Pow er of seat H eater

ACC R elay

F2 Power rear view mirror

S2 Powe r starter Motor F7 P ower of A/C 1 5th wire

F24 Igni tion Switch

Figure2 4-4

① fuse FB8→the K18 pin of Circuit of the Front Engine Compartment F use Box→ Front Oxygen Sensor War mer。

48

F16 Fuel pu mp

F12 Pow er of Wipe r F13 Pow er of Air co nditioner Blower

F5 Powe r of ECU 15 th line

F15 EMS Main relay power

F20 A/C clutch

Figure24-5