lexus_gs300_gs430_service_manual 3

8/3/2019 Lexus_GS300_GS430_service_manual 3

1/16

13

1 2 3

GS 300

C onnec to r L i s t

1 2 3 4 5 6 7 8 9 10 11

12 13 14 15 16 17 18 19 20 21 22

1 2

1 2 3 4

1 2 1 2

1 221 3 4 5 6 7 8 9 10 11 1 2 13

14 15 16 17 18 19 20 21 22 23 24 25

1

14

12

4 3

1 2

3 4

11

2221

109

2019

87

1817

65

1615

43

1413

1 2

12

181716151413121110

1 2 3 4 5 6 7 8 9

16 15 14 13 12 11 10 9

8 7 6 5 4 3 2 1

1 2 3 1 2 1 2 1 2 1 2

1 2 1

1 2 3 41 2 3 4 1 2 3 4 1 2 3 4 5 6 1 2 3 4 5 6

1 2 4 5

1 0 1 1 1 3 1 4

3

12

986

181715

7

161

9

1 2 3 4 5 6 71 3 4 5 6 9

10 12 13 14 15 19

20 22 24 28

7

16 17

25 2623

2

11

21

8

18

27

1 2 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 18

A16 A21 A33 BLACK A36 BLACK A37 BLACK

C11C 9 BLACK C12 B 8

D 8 GRAYD 4 D 7D 6D 5D 3D 2

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17

C13(Australia)

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 1 6 1 7

C13(Except Australia)

1 2 3 4 5 6 7

B 1 GRAY B 5

D18 GRAYD13 D14 BLACK D15 BLACK D16 BLACK D17 BLACK

D21 BLUE E 5 E11(G. C. C. ) E11 BLACK(Except G. C. C. )E 8 BLACK F11 GRAY


2/16

14

1 2 3

GS 300


1 2 3

4 5

1 2 1 21 2 1 2

5

3 4

6 7 8 9 10

1 2

3 4 5 61 2

3 4 5 6

1 2 3 4

A A A B B

A A A B B B B B

A A

A A A A C

EE

CC

EE

CC

EE

BB

ED

BA

DD

A A

D

A A A A A

A A A A A A A A

E

BB

ED

BA

DD

A A

D

A A B C C

A A B B B B C C

A A A A

A A A A A A A

BBAAA

A A A B B B B A B B C C

A A B D D D C C

A A

A A A A

A A

A A A A

A

A

A A

A A A A

BBAAA

A A A B B B BC

EE

CC

EE

CC

EE

BB

ED

BA

DD

A A

D

A A

A A A A 1 2 1 21 2 1

1 2 3 4 5 6

7 8 9 10 11 12 13 1 4 1 5 1 6

1 2 3 41 1

234

1 2

3 4 5 6

1 2

3 4 5 6

1 2

3 4 5 6

1

9

1 2

3 4

5 6

1 2 3 4

5 6 7 8 9 101 2 3 4

5 6 7 8 9 10

1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 1 2 1 2 1 2

F17F15 G 1 G 2 BLACK H20 BLACK H21 GRAY H22(LHD)

1234

1234

I14 I15 J 7 GRAY J 8 J 9 J10 ORANGE

J22

J42

M 2 BLUE M 6 BLUE

J16

P18P16 BLACKP13

P 3 P 6

J32

J21

L 1 L 5 BLACK L 6

P10P 9P 8

P20 BLUE P21

J13

J17 J18

J37 J38

P22

H22 BLACK(RHD)

J19 BLUE

P19


3/16

15

1 2 3

GS 300


1 32 1 32 1 32

1 2

3 4 5 6 1 2 3 4 1 2 3 4

1 2 3 4 5 6 7 8 9 10

1 2

21 3 4 5 6 7 8 9 10 1 1 1 2 13

14 15 16 17 18 19 20 21 22 23 24 25

21 3 4 5 6 7 8 9 10 1 1 1 2 13

14 15 16 17 18 19 20 21 22 23 24 2512345

67891011121314

12345

67891011121314

1 2

1

1 2

5

3 4

6 7 8 9 10

2

3 4

1 1 2 3 41 2 1 2

1 21 2

P31 P32 P33 R 2 R 6 DARK GRAY R 6 GRAY R 7 BLACK (LHD)

T 1 BLACK U 1T 5 GRAY V 6 V 7 W 1 BLACK W 5 BL

R13 R14 R17 R18

V 4

(LHD) (RHD)

S17 GRAY


4/16

1

1

2

3

4

1GS300ELECTRICALWIRINGDIAGRAM

(Cont.nextpage)

1

120A ALT

20A ECUB1

1

1

12B

2

1A

1

10A DOME

5A ECUB2

2D

7

2F

7

2E

5

2H

12

30A D P/SEAT

20A D RR DOOR

1E

9

1E

6

20A D FR DOOR

40A AM1

1F

2

1J

3

2

ACC

IG1

AM1

3 4

BATTERY

1J

1

15A ECUIG

1E

2

1H

5

10A MPXB

1 1

BL

W

B

RL

RL

BY

BR

BR

WL

LB

LR

LW

B

GW

LY

LY

LY

WR

1

1

1

12

2

2

2

I12IGNITIONSW

MultiplexComm

unicationSystem(

LHD)

PowerSource

19

A

1H

1

1

1D

2

1E

1

3

A

OFF

TAIL

HEAD

AUTO

LIGHT CONTROL SW

10

A

4

A

2

A

5

A12

IF

Leftkickpanel

1G

6

1F

13

II

Rightsideof

thecowlpanel

1D

6

1D

1

1D

7

13

A

1B

8

1E

3 8

BC1

BJ

Rearfloorpa

rtition

panelLH

A B C D E F G H I J K L M N Q R

9

A

1

4

A

B 7BUCKLE SW LH

J23JUNCTIONCONNECTOR

BC1

12

7

A

8

A

6

A

21

A

20

A

From ShiftLock ControlECU

LY

BY

LB

BGW

LY

LY

LY

LR

LW

WR

WGW

GW

BR

BR

LY

LB

BGW

LY

LY

LY

LR

LW

WR

LO

GW

V

BRB

W

9

7

8

MIRE

MIRB

MIRS

1

81H

6

9

MPX2

R7REMOTECONTROLMIRRORSW

GWFrom Stop LightSW

HRLY

STPI

P1

SLCK

IG

MPX1

BECU

B6

BODYECU

NO.2

A

AUTO

ALTL

LF

TAIL

KSW

GND

BLVL

CLTS

CLTB

CLTE

DBKL

ILE

R

WB

Y Y

YB

RG

GRR

WB

WBWB

WB

WB

BL BL WB

WB

WB

1

A

A32

3

1

4

2

A

A

A

A

A

A

WB

WB

A

A

WB

J8JUNC

TION

CONNECTOR

J10JUNCTION

CONNECTOR

16

13

To Daytime Running

Light Relay

From Light FailureSensor

See IlluminationSystem

U 1UNLOCK WARNING SW

J 9JUNCTIONCONNECTOR

C13

COMBINATIONSW

11

4

3

2

12

7

J18JUNCTION CONNECTOR

B 1BRAKE FLUID

LEVEL WARNING SW

A33

AUTOMATICLIGHT

CONTROLSENSOR

G G

A

P

LO

O

GW

GW

GW

15

AHEAD

SeeHeadlight

System

17

AFFOG See Front Fog Light

System

11

AACAN

From Clock

131HTR

LY

6 See IlluminationSystem

5

See Front

Fog LightSystem

GO

GY

YR

VR

LGB

T

H

A

EL

YA

FromEngineand

ECTECU

FFGO

CLTS

CLTB

CLTE

E

M+

MSW

W

EB

L

eft

f

ender

16

ARFOG

25

ARFGO

See Rear FogLight System


5/16

2

5

6

7

8

1GS300(Cont'd)

(Cont.nextpage)

A B C D E F G H I J K L M N O P

A

16IJ

2

12

21

12

21

8

IC1

17IJ

2

R

2F

4

2D

9

1

3

2

2H

6

2D

41 3

2

2H

4

2D

21 3

2

21

21

Q

10

IJ1

3

IJ1

P Q R

E 5ENGINE AND ECT ECU

11

B

13

A

2

B

8

IE1

17

IE1

B C D E F G H I J K L M N O

WR

LW

LR

LY

LY

LY

GW

BLB

LY

BR

BR

GW

GW

GW

LO

W

LY

LY

LY

LY

L

Y

LY

LY

LY LY LY

LY

LY

LY

LY LY

LY

LY

LY

LY

LY

GW

B

LB

LY

BR

BR

GW

GW

RB

RG

WB

WB

WB

WB

R

R

G

WB

G G

G

G

G

G

G

G

G

WB

WB

WB

WB

WB

RB

RG

WGR

LO

GW

GW

BR

BR

LY

LB

BGW

LY

LR

LW

WR

LLW

W

W

LR

W

W

GW

L

W

GW

5

168

7 6

2

WB

RB

RG

W

(1)

(2)

(1)

MultiplexComm

unicationSystem(

LHD)

S 7STEP LIGHT RH

S 6STEP LIGHT LH

I11IGNITION KEYCYLINDER LIGHT

P 6

PERSONAL LIGHT

L 7LUGGAGECOMPARTMENT LIGHT

I15

INTERIOR LIGHT REAR RH

I14INTERIOR LIGHT REAR LH

V 6VANITY LIGHT LH

V 7VANITY LIGHT RH R

B

RG

LO

GR

C11

C12

,

COMBINATIONMETER

A

B

A16

A/CCONT

ROLASSEMBLY

T 5TILT ANDTELESCOPIC ECU

M 2MULTIDISPLAY

1

:w/LEXUS

NavigationSystem

2

:w/oLEXUSNavigationSystem

GR

GR

ONOFF

DOOR

1

3

2

S

RW

RW

RW

D 3DIODE(Luggage DoorOpen Detection)

MPX1

MPX2

MPX2

MPX1

MPX1

MPX2

MPX+

MPX

GR

27

28


6/16

3

9

10

11

12

1GS300(Cont'd)

(Cont.nextpage)

A B C D E F G H I J K L M N O

A B C D E F G H I J K L M

RQP

2B

8

2E

1

2G

4

2D

5

2G

6

2F

13

II

Rightsideof

thecowlpanel

IF

Leftkickpanel

5

A

6

A

4

A

6

IL3

18

IL3

17

IL3

BM

Quarter

panelRH

21

17

A

1J

4

15ARADIO

NO.2

15

A

1H

10

GR

2F

11

2E

2

L 1LUGGAGE COMPARTMENTDOOR OPENER SW

10

A

2

A

3

IC3

16

IC1

RW

1

2

13

A

12

A

1

A

N O

2

IL1

18

A

6

BD1

1223

12

BD1

BL

R

earfloorpartition

p

anelRH

B 8BUCKLESW RH

S17SEAT BELTWARNING OCCUPANTDETECTION SENSOR

W 6WIRELESS DOORLOCK ECU

L 5LUGGAGE COMPARTMENT DOORCOURTESY SW AND OPENER MOTOR


21

A1

P 3PARKING BRAKE SW

FromHORN

Relay

219

A EB

Leftfender

E 8ENGINE HOODCOURTESY SW

B

1

2

5

4

3

A

B

D

B

D

7

1

B

BB

B

B

1

8

11

AA

A

A

HCTY

PKB

PBKL

TR+

LGCY

RSSI

RDA

RCO

TSW

GND

BECU

ACC

IG

BZR

BZR2

HORN

MultiplexComm

unicationSystem(

LHD)

WGR

LO

GW

GW

BR

BR

LY

LB

BGW

LY

LR

LW

WR

WB

RB

RG

WR

LW

LR

GW

GW

BLB

BR

BR

GW

LO

BR

BR

LO

GW

BR

BR

LB

BGW

GW

LR

LW

WR

BR

LY

RB

RG

WB

W

VY

LGR

P

LG LG

P

LGR

WB

GW

GW

GW

LY

GR

BRBR BR

GB

PL

PB

BR

BR

WB

WB

WB

LY

WB

WB

RG

RB

LL

VG

YB

WB WB WB

WBWB

BL BL BL

GW


J7JUNCTIONCONNECTOR


BUZZER

W5

WIRELESSDOOR

LOCKBUZZER

J8JUNCTIO

N

CONNEC

TOR


BO

23

A

24

A

See ECT and A/T IndicatorSystem

PWR

SNOW

B5

BODYECUNO.1

A

1SH PB

2B

92

T 1THEFT DETERRENT HORN

S

RW

RW

19

AMPX1 M

(G. C. C. )

+B

GND

RCO

RDA

RSSI

J22JUNCTION

CONNECTOR

WB

347

A

A

WBPG

WB

WB

(5) (5)

(5)

(5)

M 6MIRRORRETRACTION SW

L

GR

J18JUNC

TION

CONNECTOR

A

RET

5

:G.C.C.


7/16

4

13

14

15

16

1GS300(Cont'd)

(Cont.nextpage)

A B C D E F G H I J K L M N O

BK

QuarterpanelLH

12

7

IC1

16

A

22

A

5

IE2

BB 2

A

20

A

2A

1

20A P FR DOOR

20A P RR DOOR

2E

6

2F

2

2G

7

2H

13

10

IK1

9

IB1

J21JUNCTION

CONNECTOR

V V V

R 8SECURITYINDICATOR[RHEOSTAT]

L 6LUGGAGE COMPARTMENTDOOR KEY UNLOCK SW

J 9JUNCTIONCONNECTOR

D 2DLC3

A B C D E F G H I J

25

A

ToHazardSW

9

C

6

IB1

2

C

13

IB1

1

A

5

IB1

1

IB1

3

C

7

BYG

WLSW

2

3

B3

GRGDT1

SC1 VR

4B

9

6

A5

LGBML

MUP LW

6B

5

6

B7

LR

AUTO

DT2 GRR

11

B

2

10

B

12

VW

SC2

SC3 V

13

B

11

1

B

14

GRDT3

PWE WB

16

A

13

7A

17

LGR

MU

L

MDN LB

18

B

4

K L M N O P

10

15

14

C

15

C

16

A1

3

5

MPX1

SIG

BDR

CPUB

MSWE

M1

M2

4

5

CC 7

WR

LW

LR

GW

GW

BLB

BR

BR

GW

LO

BR

BR

WR

LW

LR

GW

GW

LR

BR

GW

BR

BR

YLB

RY

LO

RB

RG

RB

RG

RY

LB

RY

LO

RB

RG

LO

BR

LB

GW

BRW

P

PB

RY

RY

LO

WG

LGB LGB

WG

WB

RY

LBB

LR

LO

BR

LB

GW

MultiplexComm

unicationSystem(

LHD)

BSUB

PWS

OBD2

TKUL

IND

HAZ

B5

BODYECU

NO.1

A


P1

1

PO

WERWINDOWM

ASTERSW

D18

D19

,

DRIVERDOORECU

A

B

C

,D20

GW

D21

DRIVINGPOSITION

MEMOR

YSW

MM

4

C7

GR

(3)

(3)

(3)

(3)

3

:w/Driving

PositionMemory

2F

12

6

3

V

FromHeater

Relay

FromMIR

Relay

WG

V

B

From Engineand ECT ECU

E

M1

M2

MRY

PWS

W/L

DT1

SC1

L

DU

DA

DT2

SC2

SC3

DT3

E

UL

DD

W/L2

SIL

2H

1

1

2D

69

O From Moon RoofControl ECU

HR

DFG

MPX2

LP

E

5

SeeCombination

MeterSystem


8/16

5

17

18

19

20

1GS300(Cont'd)

(Cont.nextpage)

A B C D E F G H I J K L M N O P

11

A

2

A

12

B

13

B

16

B

17

A

8

A

15

A

3

A

4

A

5

A

2

1

4

3

5

1

2

3

4

5

6

G

R

WG

W

BRB

GB

GR

BRB

GR

PB

PG

16

C

7

C

8

C

8

B

1

C

10

C

LG

LGR

LGB

R

YR

BO13

CBR

12

C IF

Leftkickpanel

4

IB1

A B C D E F G H I

2

1

1

2

14

B

15

B

10

A

12

A

18

C

K L

MultiplexComm

unicationSystem(

LHD)

7

C

16

C

6

C

1

C

18

A

5

IK1

7

IK1

2

A

3

A

13

IK1

1

IK1

7

IB1

WR

LW

LR

GW

GW

LR

BR

GW

BR

YLB

RY

LO

RB

RG

WR

LW

LR

GW

LR

BR

GW

BR

ORB

RG

RW

RY

RG

WB

WB

LB

LO

LGR

WB

LGB

RY

LO

LB

WB WB

GW

BR

O

41

2

3

F11

F12

,

FRONTPASSE

NGERDOORECU

A

B

D18

D19

,

DRIVE

RDOORECU

A

B

BDR

MPX2

MUL

DLE

ML

GND

DE2

HSSR

VSSR

DVC

DMVR

DM+R

DM

HR

KUL

KL

LSW

LSWE

A+

A

SGND

PLS

LMT

DN

UP

J

Y

CTYE

CTY

CTYB

CYL

MPX2

SIG

CPUB

BR

15

IC3 O

WB

RG

RY

RW

D20

,

C

D8DOO

RCOURTESYSW

FRO

NTLH

D4DOORCOURTESYLIGHT

FRONTLH

P12POWER WINDOW MOTORFRONT LH

D16DOOR LOCK MOTOR, DOOR KEYLOCK AND UNLOCK SW AND DOORLOCK DETECTION SW FRONT LH

AA

J10JUNCTIONCONNECTOR J

8JUNCTION

CONNECTOR

A

C

,F13

O

BR

GW

D13DOOR LOCK CONTROL SW RH

5

:G.C.C.

UL

E

L

B

M

H

COM

MV

VC

VSR

HSR

E1

11

10

9

8

6

2

1

R17REMOTE CONTROLMIRROR LH

M

LOCKDETECTION

LOCK

UNLOCK

(3)

(3)

(3)

(3)

M

ALR

9

A GB5M

R+

MR

14

MR

MF

(5)

(5)

18

3

:w/Driving

PositionMemory


9/16

6

21

22

23

24

1GS300(Cont'd)

(Cont.nextpage)

A B C D E F G H I J K L

11

C

2

C

12

B

13

B

16

B

5

C

4

C

3

C

15

C

17

C

8

C

1

2

4

3

5

1

2

3

4

5

6

G

R

WG

W

BRW

PG

PB

G

BRB

GB

GR

16

A

7

A

8

A

8

B

1

A

10A

LG

LGR

LGB

O

BO

YR13

ABR

PE2

HSSR

VSSR

PVC

PMVR

PM+R

PMHR

A+

A

LSWE

LSW

KL

KUL

SGND

PLS

LMT

DN

UP

13

C

4

B

6

B

5

B

2

4

5

6

WB

LB

LR

LW

MUP

AUTO

PWE

MDN

A B C D E F G H I

9

A

6

IK1

J

16

IL1

RW

D5DOORCOURTESYL

IGHT

FRONTRH

D9DOORCOURTESYSW

FRONTRH

RY

1

2

1

2

14

B

B

15

10

C

12

C

CTY

CYL

CTYE

CTYB

WB

RG

RY

WB

RG

RW

2

IB1

2F

8

2E

10

2H

9

D17

DOORLOCKMOTOR,DOORKEYLOCKAND

UNLOCKSW

ANDDOORLOCKDETECTIONSWF

RONTRH

P13

POWERWINDOWM

OTOR

FRONTRH

IK1

9

3

K L M N

P 8POWER WINDOW CONTROLSW FRONT RH


4

IK1

12

A II

Rightsideof

thecowlpanel

AA

B

B

B

WB WB WB WB

Y

Y

Y

Y

Y

Y

RB

RG

Y

WR

LW

LR

GW

LR

BR

GW

BR

O

F11

F12

,

FRONTPASSENGERDOORECU

A

B

F13

,

C

WR

LW

LR

GW

LR

BR

GW

BR

O O

O O

MPX1

J13JUNCTION

CONNECTOR

Y

GND

MultiplexComm

unicationSystem(

LHD)

Y YRB

RG

5

:G.C.C.

PCT

U

A

D

E

M

UNLOCK

LOCK

LOCKDETECTION

1

2

6

8

9

10

11

MH

COM

MV

VC

VSR

HS

R

E1

R18

REMOTECONTROLMIRRORRH

(3)

(3)

(3)

(3)

M

MF

18

CL

9

CRG

MR

MR+

MR

5

14

(5)

(5)

3

:w/DrivingPo

sitionMemory


10/16

7

25

26

27

28

1GS300(Cont'd)

(Cont.nextpage)

A B C D E F G H I J K L M N

MultiplexComm

unicationSystem(

LHD)

8BA

1

3

BB1

6

BA1

11

BA1

2

BA1

AA

A

5BA

1

4

BA1

14IC

3

13

IC3

11

BB1

2

BB1

6

BB1

5

15

9

14

8

18

2

7

O

GW

BR

LR

BR

LR

O

BR

LR

GW

15

14

9

4

OOBR

GW

BR

LR

GW

LR

LW

WR

BR

O

GW

O

BR

LR

GW

Y YRB

RG

11

12

Y

RB RB

YG

RB

Y

PC

T1

RRLP

MP

X1

CPUB

SIG

BDR

CTY

CTYE

CTY

B

CYL

MPX2

SIG

BDR

CPUB

21

10

23

22

24 6

5

4

3

2

WB

YR

LB

LR

LW

PWE

PCTO

MDN

AUTO

MUP

1

13

17

19 4

3

2

1

GB

GR

G

BRB

A

A+

LSW

LSWE

BJ

RearfloorpartitionpanelLH

9

BA1WB WB WB

25G

ND

BR

4

LO

MPX2

5

BB1

4

BB1

5

IL3

11

12

Y

RG RG

Y

RG

PCT1

RRLP

21

10

23

22

24 6

5

4

3

2

WB

YR

LB

LR

LW

PWE

PCTO

MDN

AUTO

MUP

19

17

1

13 4

3

2

1

BRB

G

GB

GR

LSWE

LSW

A

A+

BL

Rearfloo

rpartitionpanelRH

9

BB1WB WB WB

25G

ND

BM

QuarterpanelRH

10

BB1

20 AS

EL1 WB WB

A B C D E

8

BB1

15

IL3

5

LOLOLO

MPX1


P9POWERWINDOWC

ONTROLSW

REARLH

D14

DOORLOCKMOTORANDDOORLOCK

DETECTIONSWR

EARLH

LO

LO

BR

LW

WR

P10

POWER

WINDOWC

ONTROLSW

REARRH

D15

DOORLOCKMOTORA

NDDOORLOCK

DETECTIONSWR

EAR

RH

R1

4

RE

ARDOORRHECU

R13

REARDOORLHECU

J22JUNCTION

CONNECTOR

BR

WB

16

WHE1From Ashtray

IlluminationRear LH

WB

16

WHE1

E

PCT

D

A

U

M

LOCKDETECTION

E

PCT

D

A

U

M

LOCKDETECTION

21

12

WB

WB

R

M

1

3

2

7

6

POWERWINDOWM

OTOR

REARRH

7

18

8

2

WB

WB

CTY

CTYE

CTYB

CYL

From AshtrayIlluminationRear RH

21

12

LW

RW

2

7

6

M

3

1

2

POWERWINDOWM

OTOR

REARLH

7

6

D 7DOOR COURTESYLIGHT REAR RH

D11DOOR COURTESY SW

REAR RHRY

D10DOOR COURTESY SWREAR LH

D 6DOOR COURTESYLIGHT REAR LH

LW

RW

UP

DN

LMTPLSSGND

DN

UP

LMTPLSSGND


11/16

8

29

30

31

32

1GS300(Cont'd)

A B C D E

MultiplexComm

unicationSystem(

LHD)

11B

10

B

10BC

1

3

BC1

2IC

2

3

BA1

8

B

9

B

7

BC1

4

BC1

17

IC1

CC

21M

2

A

1A

P23POWER SEAT MOTOR(Driver' s SeatReclining Control)

LR

L

WR

BR

LO

OLY

LO

BR

WRWRWR

L

21M

6

A

5

A

P22POWER SEAT MOTOR(Driver' s SeatRear Vertical Control)

YG

YR

YR

12M

10

A

9

A

P20POWER SEAT MOTOR

(Driver' s SeatFront Vertical Control)

WR

WG

WG

12M

4

A

3

A

P24POWER SEAT MOTOR(Driver' s SeatSlide Control)

B

BR

BR

22B

YB

2RC

LR

21

BYR

3RCLF

19

BLY

10F

UP

16

BLB

6SLDR

18

BY

8LDWN

17

BYG

7LUP

15

BL

9SLDF

7

BLR

5FDWN

5

B1S

SRR

6

BV

3PVCC

4

BYG

1SSRL

3

3

BLGR

1SSFV

3

14

BLG

1SSRS

3

2

2

2

2

BK

QuarterpanelLH

11

BC1

VW

V

YG

V

LGR

V

LG

V

13

B

M

2

1

7

A BJ

RearfloorpartitionpanelLH

12

BC1

8

A

1

BC1

B A

1

3

2

B A

4

B A

P18

P19

,

POWERSEATECU

A

B

A

LO

LO

BR

LW

WR

V

V

V

LW LW LW

LW

LB

WB

LO

WB

BR

WB WB

BRBRBR

BR

BR

BR

1

BR

BR

BR

BR

BR

O

WB

LO

LO

BR

J19JUNCTION

CONNECTOR

(4)

(3)

(3)

SGND

GND

+B

SLD+

SLD

FRV+

FRV

LFT+

LFT

RCL+

RCL

SYSB

IG

MPX1

MP

X2

P16

POWERSEATCONTROLSW

(Driver'sSeat)

P32POWER SEAT POSITION SENSOR(Driver' s Seat RecliningControl)

P31POWER SEAT POSITION SENSOR(Driver' s Seat RearVertical Control)

P30POWER SEAT POSITION SENSOR(Driver' s Seat FrontVertical Control)

P33POWER SEAT POSITION SENSOR(Driver' s Seat Slide Control)

L 8LUMBAR SUPPORTCONTROL SW(Driver' s Seat)

P21

POWERS

EATMOTOR

(Driver'sSeat

LumbarS

upportControl)


J21JUNCTION

CONNECTOR

J23JUNCTION

CONNECTOR

3

:w/DrivingPositionMemory

4

:w/oDrivingPositionMemory

RC

LR

RCLF

FUP

SLDR

LDWN

LUP

SLDF

FDWN

E

REAR

FRONT


12/16

9

1

2

3

4

10GS300

1A

1

1H

2

TAIL

RELAY

1

120A ALT

1

7.5A

PANEL

1E

8

1H

7E

21

1

BA1

5

IC1 WBLGLG

(Europe)

21

1

BB

1

IL1

7

WBLGLG

A37ASHTRAYILLUMINATION REAR RH

42

E11ECT PATTERN SELECT SW

12

A21A/T SHIFT POSITIONILLUMINATION

65

R 7REMOTE CONTROL MIRROR SW

42

C 9

CIGARETTE LIGHTERILLUMINATION

21

R 6REAR FOG LIGHT SW

36

H21HEADLIGHT BEAMLEVEL CONTROL SW

15

S 4SEAT HEATER SW

65

H22HEADLIGHT CLEANER SW

3G

4

3H

45

15

M 2MULTIDISPLAY

32

H20HAZARD SW

20

13

A16A/C CONTROL ASSEMBLY

65

R 2RADIO AND PLAYER

21

G 1GLOVE BOX LIGHT

3C

4

3E

4

3D

4

3F

4

3H

2

3G

2

1F

9

1C

5

3C

2

3E

2

21 3F

5

3G

5

II

Rightsideof

thecowlpanel

AA

5

IJ2

A

LG

(Europe)

LG

ToDaytime

RunningLightRelay

FromDaytime

RunningLightRelay

Illumination(LHD)

Powe

rSource

LGR

LG

LG

LG

LG

LG

WB

WB

W

LG

BL

LG

LG

LG

LG

LG

LG

LG

LG

LG

LG LG

WG

WG

WG

WB

WG

WG

WG

WG

WG

WB

WB

WB

WB

RW

LG

LG

LG

LG WB

WB

(G. C. C. )

(1)

(1)

J13JUNCTION

CONN

ECTOR

J17JUNCTION

CONNECTOR

A36ASHTRAYILLUMINATION REAR LH

G 2GLOVE BOX LIGHT SW

J18JUNCTION CONNECTOR

E

E

E

E

E

E

A

12

A

A

A

A

A

A

A

E

BATTERY

LG

4

:EuropeEx

ceptHIDType

3

:w/Headlig

htCleanerSystem

(Europe) (Europe)

1H

13

62

A3 2

D 1DAYTIME RUNNINGLIGHT RELAY

TAIL

OFF

HEAD

C13LIGHT CONTROL SW[COMB. SW]

16

GR GO

(1) (1)

GR

(2)

RY

TRLY

TAIL

IF

Leftkick

panel

A AA

WB

J10JUNCTION

CONNECTOR

J8JUNCTION

CONNECTOR

To Rear Door LH ECU

To Rear Door RH ECU

1C

6

13

1F WB

WB

43

V 4VSC OFF SW

LG

LG WG

LG

(2)

B6

BODYECU

NO.2

A

5

1

3

2

15

T

H

EL WB

TTAIL

21

M 6MIRROR RETRACTION SW

LG WB

A

A

(G. C. C. )(G. C. C. )

(3) (3)

(Europe) (Europe)

13

IE2WG WG

A

ToCombinationMeter

3D

2

LG

(4) (4)

2

:w/oDaytim

eRunningLight

1

:w/DaytimeRunningLight


13/16

10

1

2

3

4

11GS300

1A

1

1H

2

1E

8

1H

7

7.5A

PANEL

1C

2

1

120A

ALT

1

21

21

1

BB1

1

BA1

5

IC1

EE

A36ASHTRAYILLUMINATION REAR LH

65

R 7REMOTE CONTROLMIRROR SW

42

C 9CIGARETTE LIGHTERILLUMINATION

12

A21A/T SHIFT POSITIONILLUMINATION

42

E11ECT PATTERN SELECT SW

23

H22HEADLIGHT CLEANER SW

15

S 4SEAT HEATER SW

36

H21HEADLIGHT BEAM LEVELCONTROL SW

21

R 6REAR FOG LIGHT SW

21

G 1GLOVE BOX LIGHT

515

M 2MULTIDISPLAY

32

H20HAZARD SW

20

13

A16A/C CONTROLASSEMBLY

65

R 2RADIO AND PLAYER

3A

5

3F

5

3A

2

3H

2

3F

4

3A

4

3H

4

3C

4

3E

4

3G

4

3C

2

3E

2

21

IF

Leftkickpanel

A

1F

9

1C

5

Illumination(RHD)

Po

werSource

WB

LG

LG

LG

LG

LG

WB

W

LG

LGLG LGLG

LG

LG

LG

LG

LG

LG

LG

LG

RW

WB

WB

LG

LG

WB

WB

WB

WB

WB

WB

WB

WB

WB

WB

LG

LG

LG

LG

LG

WB

WB

WB

WB

BL

WB

E

E

E

E

12

J38JUNCTION

CONNECTOR

J32JUNCTION

CONNECTOR

G 2GLOVE BOX LIGHT SW

A37ASHTRAYILLUMINATION REAR RH

TAIL

RELAY

BATTERY

4

:Europe

ExceptHIDType

3

:HIDType

43

V 4VSC OFF SW

LG

LG WB

To Rear Door LH ECU

To Rear Door RH ECU

1H

13 2

A

TAIL

OFF

HEAD

15

B

(2)

15

A

(1)

16

A

(1)

9

B

(2)

II

CowlsidepanelRH

6

A

C13

,

LIGHTCONTROL

SW[COMB.SW]

A

B

J42JUNCTION

CONNECTOR

WB

RYGR

TRLY

TAIL

B6

BODYECU

NO.2

A

WB

T

EL

H

5

1

3

2

WB3G

2

1F

13

1C

6

WB

B

B

WB

13

IJ2

ToCom

binationMeter

WB

WB

WB

WB

WB

WB

WG WG

J37JUNCTION

CONNECTOR

(1, 3) (1, 3)

(4)(4)

2

:Australia

1

:Europe


14/16

11

1

2

3

4

31GS300

(Cont.nextpage)

1

120A ALT

11A

1

40A AM1

1J

3

2

ACC

IG1

AM1

4

1J

1

10AGAUGE

1D

4 1

A

WL

REAR LIGHT

SEAT BELT

OILPRESSURE

ECT SNOW

ECT PWR

CRUISE

FUEL

CHARGE

OIL LEVEL

FUEL

WATER

SPEEDOMETER

TACHOMETER

HEADLIGHT BEAMLEVEL CONTROL

ABS

VSC

VSC OFF

ODOME

TER

TRIPMETER

BY

A/TP

R

N

D

4

3

2

18

A

16

B

13

B

15

B

14

B

5

B

17

B

16

A

3

B

4

B

6

B

10

B

2

A

3

A

SLIP

BRAKE

ODO/TRIP

RESET

WASHER

TURN LH

TURN RH

RL

C11

C12

,

COMBINATIONMETER

A

B

12

IC1

32

12

3

IC1

EB

Leftfender

21

BY

GR

R

G

Y

BRY

YR

VW

GRB WB

YR

BRY BO

BO

BO

BY

See Headlight Beam LevelControl System(Automatic)

From Igniter

See Turn Signal and HazardWarning Light System

To PPSECU

ToNavigationECU

SeeVSCSystem

F15FUEL SENDER

F17FUEL SENDER(Sub)

W 1WASHER LEVELWARNING SW

Pow

erSource

CombinationMeter

1:Europe

1 12 2

W BL

BATTERY

I12IGNITIONSW

CPU

15

IJ1

IE1

15

10

IJ2

IE2

10

13

IJ1

IE1

13

9

IJ1

IE1

9

16

IJ1

IE1

16

(LHD)

(RHD)

C

B

(RHD)

A

A

(LHD)

A

A

(LHD)

A

A

C

B

C

B

(RHD)

JUNCTION CONNECTOR

BAJ13 J38,

VW

VW

17

ASee Taillight andStop Light System

(1)

7

IM3

IL3

719

IM3

IL3

19

(LHD)

(RHD)

(LHD)

(RHD)


15/16

12

5

6

7

8

31GS300(Cont'd)

14

A

1

B

22

A

8

B

12B

6

A

5

A

4

A

13

A

15

A

7

B

11

B

2

B

12

A

TAIL

FRONT FOG

DOOR

HIGH BEAM

SRS

CHECK ENGINE

L

CPU

C11

C12

,

COMBINATIONMETER

A

B

YY

See HeadlightSystem

See MultiplexCommunicationSystem

From PassengerSeat BeltWarning Light[Clock]

See SRS System

1D

5

1F

13

1G

6

II

Rightside

ofthe

cowlpanel

IF:Leftkickpanel(LHD)

II:Cowl

sidepanelRH(RHD)

A

A

A A

WB

O

WB

WB

WB

WB

J8(LHD)

J42(RHD)

JUNCTION

CONNECTOR


See Engine ControlSystem

See SRS System

See MultiplexCommunicationSystem

See HeadlightSystem

Com

binationMeter

R8RHEOSTAT

5

4

3

WB

W

G

BUZZER

(1) (1)

2:ExceptG.C.C.

18

IJ1

IE1

18

(LHD)

(RHD)

1:Europe

11

IJ1

IE1

11

(LHD)

(RHD)

IF

Leftkickpan

el

(LHD) (LHD)

AB

B

WB

WB

(RHD)

(RHD)

J37JUNCTION

CONNECTOR

J32JUNC

TION

CON

NECTOR

(2)(2)

REAR FOG

E

RV

T

9

AWG From Illumination


16/16

NOTICEWhen handling supplemental restraint system components (removal,installation or inspection, etc.), always follow the direction given in the repairmanuals listed above to prevent accidents and supplemental restraintsystem malfunction.

FOREWORD

This wiring diagram manual has been prepared to provide

information on the electrical system of the IS 200.

Applicable models: GXE10 Series

For service specifications and repair procedures of the above

models other than those listed in this manual, refer to the

following manuals;

Manual Name Pub. No.

DLEXUS IS 200 Repair ManualVolume 1

Volume 2

D LEXUS IS 200 New Car Features

RM684E1RM684E2

NCF165E

All information in this manual is based on the latest product

information at the time of publication. However, specifications

and procedures are subject to change without notice.

E

nglish

Franais

Espaol

Deuts

ch

lexus_gs300_gs430_service_manual 3

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