lexus_gs300_gs430_service_manual 6

8/3/2019 Lexus_GS300_GS430_service_manual 6

1/23


2/23

3

ELECTRICAL WIRING ROUTING

Position of Parts in Instrument Panel

[LHD]

A23

A22

G3

A24

A25

B6

A27

B5

G2

D1

C5

G1

B2

B3

B4

C9

A33C19 C12C11 H20A28 C10 C23 A20 A16 A17 A19 A30 A29 A31 C20

C15C14C13D2H21 A10H22F8 A32 C16 C6H23 C7 C8 A21 E11 A26H15 A18(1)

1 : 3UZ-FE

(1)

A10 Accel Position SensorA16 A/C Control AssemblyA17 A/C Control AssemblyA18 A/C Room Temp. SensorA19 A/C Solar SensorA20 A/C ThermistorA21 A/T Shift Position IlluminationA22 ABS & TRC & VSC ECUA23 ABS & TRC & VSC ECUA24 ABS & TRC & VSC ECUA25 ABS & TRC & VSC ECUA26 ABS Deceleration Sensor

A27 Air Inlet Control Servo MotorA28 Air Mix Control Servo Motor (Driver Side)A29 Air Mix Control Servo Motor (Front Passenger Side)A30 Air Vent Mode Control Servo MotorA31 Airbag Squib (Front Passenger Airbag Assembly)A32 Airbag Squib (Steering Wheel Pad)A33 Automatic Light Control Sensor

B 2 Blower MotorB 3 Blower Motor ControllerB 4 Blower Motor ControllerB 5 Body ECU No.1B 6 Body ECU No.2

C 5 CD Automatic ChangerC 6 Center Airbag Sensor AssemblyC 7 Center Airbag Sensor Assembly

C 8 Center Airbag Sensor AssemblyC 9 Cigarette LighterC10 ClockC11 Combination MeterC12 Combination MeterC13 Combination SWC14 Combination SWC15 Combination SWC16 Combination SWC19 Curtain Shield Airbag Squib LHC20 Curtain Shield Airbag Squib RHC23 Center Speaker

D 1 Daytime Running Light RelayD 2 DLC3

E 11 ECT Pattern Select SW

F 8 Fuel Lid Opener SW

G 1 Glove Box LightG 2 Glove Box Light SWG 3 Gateway ECU

H15 Heated Oxygen Sensor (Bank 1 Sensor 2)H20 Hazard SWH21 Headlight Beam Level Control SWH22 Headlight Cleaner SWH23 Heated Oxygen Sensor (Bank 2 Sensor 2)


3/23

4



[LHD]

R8

J9

R5

J10

J12

P5

V5

T7

P3

J8

T4

J7

R6

S10

S11

S7

S9

S8

J18

J19

R4

J15J13J11 J16 T6 M2M6J17 I11I12 M3

U1T5 J14 K3S6S12L1 M7R7J6 R3R2 S5 S4 V4 Y1 P4

I 11 Ignition Key Cylinder LightI 12 Ignition SW

J 6 Junction ConnectorJ 7 Junction ConnectorJ 8 Junction ConnectorJ 9 Junction ConnectorJ 10 Junction ConnectorJ 11 Junction ConnectorJ 12 Junction ConnectorJ 13 Junction ConnectorJ 14 Junction ConnectorJ 15 Junction Connector

J 16 Junction ConnectorJ 17 Junction ConnectorJ 18 Junction ConnectorJ 19 Junction Connector

K 3 Kick Down SW

L 1 Luggage Compartment Door Opener SW

M 2 MultiDisplayM 3 MultiDisplayM 6 MultiDisplayM 7 Mirror Retractor SW

P 3 Parking Brake SWP 4 Power OutletP 5 PPS ECU

R 2 Radio and PlayerR 3 Radio and PlayerR 4 Radio and PlayerR 5 Rear Fog Light RelayR 6 Rear Fog Light SWR 7 Remote Control Mirror SWR 8 Rheostat

S 4 Seat Heater SWS 5 Shift Lock Control ECUS 6 Step Light LHS 7 Step Light RHS 8 Stereo Component Amplifier

S 9 Stereo Component AmplifierS10 Stereo Component AmplifierS 11 Stereo Component AmplifierS12 Stop Light SW

T 4 Telephone MicrophoneT 5 Tilt and Telescopic ECUT 6 Transponder Key AmplifierT 7 Turn Signal Flasher

U 1 Unlock Warning SW and Key Interlock Solenoid

V 4 VSC Off SWV 5 VSC Warning Buzzer

Y 1 Yaw Rate Sensor


4/23

5


Position of Parts in Body

[LHD]

D18

D21

C18

C17

D19

D20

F9

D16

D22

D4

D8

J22

A38

J51

J50

H25

D11

D15

D25

I13 I14 F11 F12 F13 F10 D13 I15 D17 D9 A37D5D23

J20F16A34F15D10D14D6A36 D24 J21D3 H24 F14 F17 H26 D7 A35

A34 ABS Speed Sensor Rear LHA35 ABS Speed Sensor Rear RHA36 Ashtray Illumination Rear LHA37 Ashtray Illumination Rear RHA38 Auto Antenna Control Relay and Motor

C17 Cellular Phone (Hand Set)C18 Cellular Phone (Hand Set)

D 3 Diode (Luggage Door Open Detection)D 4 Door Courtesy Light Front LHD 5 Door Courtesy Light Front RH

D 6 Door Courtesy Light Rear LHD 7 Door Courtesy Light Rear RHD 8 Door Courtesy SW Front LHD 9 Door Courtesy SW Front RHD10 Door Courtesy SW Rear LHD11 Door Courtesy SW Rear RHD13 Door Lock Control SW RHD14 Door Lock Motor and Door Lock Detection SW Rear LHD15 Door Lock Motor and Door Lock Detection SW Rear RHD16 Door Lock Motor, Door Key Lock and Unlock SW and

Door Lock Detection SW Front LHD17 Door Lock Motor, Door Key Lock and Unlock SW and

Door Lock Detection SW Front RHD18 Driver Door ECUD19 Driver Door ECU

D20 Driver Door ECUD21 Driving Position Memory SW

D22 Door Lock Motor and SW Front LHD23 Door Lock Motor and SW Front RHD24 Door Lock Motor and SW Rear LHD25 Door Lock Motor and SW Rear RH

F 9 Front Door Speaker LHF 10 Front Door Speaker RHF 11 Front Passenger Door ECUF 12 Front Passenger Door ECUF 13 Front Passenger Door ECUF 14 Fuel Lid Opener MotorF 15 Fuel Pump and Sender

F 16 Fuel Pump Control ECUF 17 Fuel Sender (Sub)

H24 Height Control Sensor (Rear)H25 High Mounted Stop Light (Bulb Type)H26 High Mounted Stop Light (LED Type)

I 13 Inner MirrorI 14 Interior Light Rear LHI 15 Interior Light Rear RH


J 51 Junction Connector


5/23

6



[LHD]

P12

R17

P11

P9

S13

R13

P14

R15

N4

N3

R11

S24

R12

L3

L6

L5

M5V6 P6 M4 V7P13R18 P8 S14 P10R16 R14 W7 W6 S22 S23

L4P15N5 R10 L7 T8 R9T9 L2

L 2 License Plate Light LH

L 3 License Plate Light RH

L 4 Light Failure Sensor

L 5 Luggage Compartment Door Courtesy SW and

Opener Motor

L 6 Luggage Compartment Door Key Unlock SW

L 7 Luggage Compartment Light

M 4 Moon Roof Control ECU

M 5 Moon Roof Control SW

N 3 Navigation ECU

N 4 Navigation ECU

N 5 Noise Filter (Rear Window Defogger)

P 6 Personal Light

P 8 Power Window Control SW Front RH

P 9 Power Window Control SW Rear LH

P10 Power Window Control SW Rear RH

P 11 Power Window Master SW

P12 Power Window Motor Front LH

P13 Power Window Motor Front RH

P14 Pretensioner LH

P15 Pretensioner RH

R 9 Rear Combination Light LH

R10 Rear Combination Light LH

R11 Rear Combination Light RH


R13 Rear Door LH ECU

R14 Rear Door RH ECU

R15 Rear Door Speaker LH

R16 Rear Door Speaker RH

R17 Remote Control Mirror LH

R18 Remote Control Mirror RH

S13 Side Airbag Sensor LH

S14 Side Airbag Sensor RH

S22 Stereo Component Amplifier



T 8 Telephone Transceiver and Speaker Relay


V 6 Vanity Light LH

V 7 Vanity Light RH

W 6 Wireless Door Lock Control ECUW 7 Woofer (Speaker)


6/23

7



[RHD]

G2

A31

C19

A19

C5

G1

B5

B2

A25

H21

C16

D2

A32

A23

A24

A22

C20

C15

F8

B3A27 A30 A20 A28 C10C23 H20A16 A17 A18 A33 C11 C12 A10H22

B4 C6 C7 C8C9 A26 C13 B6 C14A21E11H23H15A29

1 : 3UZ-FE

(1)

G3

(1)

A10 Accel Position SensorA16 A/C Control AssemblyA17 A/C Control AssemblyA18 A/C Room Temp. SensorA19 A/C Solar SensorA20 A/C ThermistorA21 A/T Shift Position IlluminationA22 ABS & TRC & VSC ECUA23 ABS & TRC & VSC ECUA24 ABS & TRC & VSC ECUA25 ABS & TRC & VSC ECU

A26 ABS Deceleration SensorA27 Air Inlet Control Servo MotorA28 Air Mix Control Servo Motor (Driver Side)A29 Air Mix Control Servo Motor (Front Passenger Side)A30 Air Vent Mode Control Servo MotorA31 Airbag Squib (Front Passenger Airbag Assembly)A32 Airbag Squib (Steering Wheel Pad)A33 Automatic Light Control Sensor

B 2 Blower MotorB 3 Blower Motor ControllerB 4 Blower Motor ControllerB 5 Body ECU No.1B 6 Body ECU No.2

C 5 CD Automatic ChangerC 6 Center Airbag Sensor Assembly

C 7 Center Airbag Sensor Assembly

C 8 Center Airbag Sensor AssemblyC 9 Cigarette LighterC10 ClockC11 Combination MeterC12 Combination MeterC13 Combination SWC14 Combination SWC15 Combination SWC16 Combination SWC19 Curtain Shield Airbag Squib LHC20 Curtain Shield Airbag Squib RH

C23 Center Speaker

D 2 DLC3

E 11 ECT Pattern Select SW

F 8 Fuel Lid Opener SW

G 1 Glove Box LightG 2 Glove Box Light SWG 3 Gateway ECU

H15 Heated Oxygen Sensor (Bank 1 Sensor 2)H20 Hazard SWH21 Headlight Beam Level Control SWH22 Headlight Cleaner SWH23 Heated Oxygen Sensor (Bank 2 Sensor 2)


7/23

8



[RHD]

S8

J32

J33

J34

S9

S10

S11

J30

J31

S6

T6

P5

S7

L1

I12

I11

U1

R7

R6

V5

R8

M3M2 M6 P3 S12J38J37J36J35 J41J40J39 T4 J42

R3R2 S5 V4R4 S4 K3T5 Y1 P4

I 11 Ignition Key Cylinder LightI 12 Ignition SW

J 30 Junction ConnectorJ 31 Junction ConnectorJ 32 Junction ConnectorJ 33 Junction ConnectorJ 34 Junction ConnectorJ 35 Junction ConnectorJ 36 Junction ConnectorJ 37 Junction ConnectorJ 38 Junction Connector


K 3 Kick Down SW

L 1 Luggage Compartment Door Opener SW

M 2 MultiDisplayM 3 MultiDisplayM 6 MultiDisplay

P 3 Parking Brake SWP 4 Power Outlet

P 5 PPS ECU

R 2 Radio and PlayerR 3 Radio and PlayerR 4 Radio and PlayerR 6 Rear Fog Light SWR 7 Remote Control Mirror SWR 8 Rheostat

S 4 Seat Heater SWS 5 Shift Lock Control ECUS 6 Step Light LHS 7 Step Light RHS 8 Stereo Component Amplifier

S 9 Stereo Component AmplifierS10 Stereo Component AmplifierS 11 Stereo Component AmplifierS12 Stop Light SW

T 4 Telephone MicrophoneT 5 Tilt and Telescopic ECUT 6 Transponder Key Amplifier

U 1 Unlock Warning SW and Key Interlock Solenoid

V 4 VSC Off SWV 5 VSC Warning Buzzer

Y 1 Yaw Rate Sensor


8/23

9



[RHD]

F11

D12

C17

C18

F12

F13

F9

D16

D22

D4

D8

J45

A38

J51

J50

H25

D11

D15

D25

A37

I13 I14 D18 D19 D20 F10 D21 I15 D17 D9D5D23

J43F16A34F15D10 D14D6A36 D24 J44D3 H24 F14 F17 H26 D7 A35

A34 ABS Speed Sensor Rear LHA35 ABS Speed Sensor Rear RHA36 Ashtray Illumination Rear LHA37 Ashtray Illumination Rear RHA38 Auto Antenna Control Relay and Motor

C17 Cellular Phone (Hand Set)C18 Cellular Phone (Hand Set)

D 3 Diode (Luggage Door Open Detection)D 4 Door Courtesy Light Front LHD 5 Door Courtesy Light Front RH

D 6 Door Courtesy Light Rear LHD 7 Door Courtesy Light Rear RHD 8 Door Courtesy SW Front LHD 9 Door Courtesy SW Front RHD10 Door Courtesy SW Rear LHD11 Door Courtesy SW Rear RHD12 Door Lock Control SW LHD14 Door Lock Motor and Door Lock Detection SW Rear LHD15 Door Lock Motor and Door Lock Detection SW Rear RHD16 Door Lock Motor, Door Key Lock and Unlock SW and

Door Lock Detection SW Front LHD17 Door Lock Motor, Door Key Lock and Unlock SW and

Door Lock Detection SW Front RHD18 Driver Door ECUD19 Driver Door ECU

D20 Driver Door ECUD21 Driving Position Memory SW

D22 Door Lock Motor and SW Front LHD23 Door Lock Motor and SW Front RHD24 Door Lock Motor and SW Rear LHD25 Door Lock Motor and SW Rear RH

F 9 Front Door Speaker LHF 10 Front Door Speaker RHF 11 Front Passenger Door ECUF 12 Front Passenger Door ECUF 13 Front Passenger Door ECUF 14 Fuel Lid Opener MotorF 15 Fuel Pump and Sender

F 16 Fuel Pump Control ECUF 17 Fuel Sender (Sub)

H24 Height Control Sensor (Rear)H25 High Mounted Stop Light (Bulb Type)H26 High Mounted Stop Light (LED Type)

I 13 Inner MirrorI 14 Interior Light Rear LHI 15 Interior Light Rear RH


J 51 Junction Connector


9/23

10



[RHD]

P12

R17

P7

P9

S13

R13

P14

R15

N4

S24

N3

R11

R12

L3

L6

L5

M5V6 P6 M4 V7P13R18 P11 S14 P10R16 R14 W7 W6 S22 S23

L4P15N5 R10 L7 T8 R9T9 L2

L 2 License Plate Light LH

L 3 License Plate Light RH

L 4 Light Failure Sensor

L 5 Luggage Compartment Door Courtesy SW and

Opener Motor

L 6 Luggage Compartment Door Key Unlock SW

L 7 Luggage Compartment Light

M 4 Moon Roof Control ECU

M 5 Moon Roof Control SW

N 3 Navigation ECU

N 4 Navigation ECU

N 5 Noise Filter (Rear Window Defogger)

P 6 Personal Light

P 7 Power Window Control SW Front LH

P 9 Power Window Control SW Rear LH

P10 Power Window Control SW Rear RH

P 11 Power Window Master SW

P12 Power Window Motor Front LH

P13 Power Window Motor Front RH

P14 Pretensioner LH

P15 Pretensioner RH

R 9 Rear Combination Light LH

R10 Rear Combination Light LH



R13 Rear Door LH ECU

R14 Rear Door RH ECU

R15 Rear Door Speaker LH

R16 Rear Door Speaker RH

R17 Remote Control Mirror LH

R18 Remote Control Mirror RH

S13 Side Airbag Sensor LH

S14 Side Airbag Sensor RH






V 6 Vanity Light LH

V 7 Vanity Light RH

W 6 Wireless Door Lock Control ECUW 7 Woofer (Speaker)


10/23

InstrumentPanel Wire

Floor No.2Wire

Engine RoomMain Wire

Floor No.1Wire

Front DoorRH Wire

Roof Wire

A/C SubNo.1 Wire

A/C SubNo.2 Wire

Floor No.1Wire

Cowl Wire

Curtain ShieldAirbag No.1Wire


Front DoorLH Wire

IC1

IA1

IB1

IA2

IC2

IC3

ID1 IH1IG1

IE1IE3 IE2 IF1

Curtain ShieldAirbag No.2 Wire

IIIG

IH

IF

11


: Location of Connector Joining Wire Harness and Wire Harness

: Location of Ground Points

[LHD]


11/23


Floor No.2Wire




A/C SubNo.2 Wire

Floor No.1Wire

Front DoorRH Wire

Roof Wire

A/C SubNo.1 Wire

Cowl Wire


Front DoorLH Wire

IK1

IL2

IL3

IL1

IR1

IQ1

IM1IN1 IM2IJ3IJ1IJ2Floor No.1Wire

IP1

II2II1 II4 II3

12



[LHD]


12/23

Rear Door

LH Wire

Roof Wire Front Door

RH Wire

Rear Door

RH Wire

Floor No.1

Wire

Floor No.2

Wire

Front Door

LH Wire

BA1

BB1 BL

BJ BK

BM

13




[LHD]


13/23


Floor No.2Wire

A/C SubNo.1 Wire



Floor No.1Wire

Front DoorRH Wire


A/C SubNo.2 Wire

Floor No.1Wire

Cowl Wire

Roof Wire


Front DoorLH Wire

IC1

IA1

IB1

IA3

IA2

IC2

IC3

ID2ID1 IE1ID3 IF1

IG IIIH

IF

14




[RHD]


14/23

Floor No.2Wire




A/C SubNo.1 Wire

Front DoorRH Wire

EngineRoomMain Wire

Floor No.1Wire

A/C SubNo.2 Wire

Cowl Wire

Roof Wire


Front DoorLH Wire

IK1

IK2

IK3

IL1

IQ1

IM1IO1 IR1IG2IG1 IM2 IM3Floor No.1Wire

IP1

IJ1 IJ2IH1 II1

15



[RHD]


15/23

Rear Door

LH Wire

Roof Wire Front Door

RH Wire

Rear Door

RH Wire

Floor No.1

Wire

Floor No.2

Wire

Front Door

LH Wire

BA1

BB1 BL

BK

BM

16




[RHD]


16/23

23

CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

1 2 3 4

5 6 7 8 9 10 4 3 2 1

5678910

1 2 3 4

5 6 7 8 9 10 11 12

13 14 15 16 17

1234

56789101112

1314151617

1 2 3 4

5 6 7 8 9 10 4 3 2 1

5678910

1 2

3 4 5 6 78 9 10 11 12

12

34567

89101112

9

18

8

1716

76

1514

54

1312

32

11

1

10

89

1817

7

16

6

15

5

14

4

13

3

12

2

11

1

10

7

1413

65

1211

43

109

21

8

7

14

6

13

5

12

4

11

3

10

2

9

1

8

2

3 4

1 12

4 3

1 2 3 4

5 6 7 8 9 10 1111

4 3 2 1

5678910

OrangeIA1 IB1

OrangeIC2 OrangeID2

BlueID3 IE2

IE3 IG1

Code Joining Wire Harness and Wire Harness (Connector Location)

IA1 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)

IB1 Front Door LH Wire and Cowl Wire (Left Kick Panel)

IC2 Floor No.2 Wire and Cowl Wire (Left Kick Panel)

ID2

ID3

IE2

IE3

IG1 Instrument Panel Wire and Floor No.1 Wire (Front LH Side of the Shift Lever)


17/23

24


9

18

8

1716

76

1514

54

1312

32

11

1

10

89

1817

7

16

6

15

5

14

4

13

3

12

2

11

1

10

1 2 3 4

5 6 7 8 9 10 4 3 2 1

5678910

1 2 3 4 5 6 7 8 9

10111213141516171819202122

7 6 5 1

20191817 1514 10

234

11121316

89

2122

7

1413

65

1211

43

109

21

8

7

14

6

13

5

12

4

11

3

10

2

9

1

81 2

3 4 5 6 7

8 9 10 11 12

12

34567

89101112

1 2 3 4

5 6 7 8 9 10 11 12

13 14 15 16 17

1234

56789101112

1314151617

BlueIG2 OrangeII4

BlueIJ2(LHD)

IJ2(RHD) OrangeIJ3

IK1


IG2 Instrument Panel Wire and Floor No.1 Wire (Front LH Side of the Shift Lever)

II4 Engine Room Main Wire and Cowl Wire (Near the Passenger Side J/B)

IJ2 (LHD) Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)

IJ2 (RHD) Instrument Panel Wire and Cowl Wire (Right Side of the Steering Column)

IJ3 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)

IK1 Front Door RH Wire and Cowl Wire (Right Kick Panel)


18/23

25


1 2 3 4

5 6 7 8 9 10 11 12

13 14 15 16 17

1234

56789101112

1314151617

1 2 3 4

5 6 7 8 9 10 4 3 2 1

5678910

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 201

2345678

91011121314151617181920

1 2 3 4

5 6 7 8 9 10 1111

4 3 2 1

5678910

9

18

8

1716

76

1514

54

1312

32

11

1

10

89

1817

7

16

6

15

5

14

4

13

3

12

2

11

1

10

1 2 3 4

5 6 7 8 9 10 4 3 2 1

5678910

IL1 OrangeIL2

IL3

IM1 IM2

IM2

(LHD)

(RHD) Orange

Blue


IL1 Front Door RH Wire and Cowl Wire (Right Kick Panel)

IL2

IL3.

IM1

IM2 (LHD).

IM2 (RHD) Floor No.1 Wire and Cowl Wire (Right Kick Panel)


19/23

26


1 2 3 4 5 6 7 8

910 11 12 13 14 15 16 17 18 19

2012345678

91011121314151617181920

109876

54321 5

10

4

9

3

8

2

7

1

6

7

1413

65

1211

43

109

21

8

7

14

6

13

5

12

4

11

3

10

2

9

1

8

1 2

3 4 5 6 7

8 9 10 11 12

12

34567

89101112

1 2

3 4 5 6 7

8 9 10 11 12

12

34567

89101112

IM3

(LHD) (RHD)IR1 IR1

BA1 BB1


IM3 Floor No.1 Wire and Cowl Wire (Right Kick Panel)

IR1 Instrument Panel Wire and Floor No.1 Wire (Right Kick Panel)

BA1 Rear Door LH Wire and Floor No.2 Wire (Under the Center Pillar LH)

BB1 Rear Door RH Wire and Floor No.1 Wire (Under the Center Pillar RH)


20/23

27

CONNECTOR LIST

A A B C C

A A B B B B C C

A A

A A A A

C

EE

CC

EE

CC

EE

BB

ED

BA

DD

A A

D

CCBAAA A B B B C C

C

EE

CC

EE

CC

EE

BB

ED

BA

DD

A A

D

A A

A A A A

C

EE

CC

EE

CC

EE

BB

ED

BA

DD

A A

D

A A

A A A AA 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

109876

54321

C 5

1 2

C23

2

3 4

1

F 9

2

3 4

1

F10

1 2 3 4

5 6 7 8

I12

A A A B B

A A A B B B B B

GRJ 7

A A

A A A A

J 8OrangeJ10

C

EE

CC

EE

CC

EE

BB

ED

BA

DD

A A

D

J13

BBAAAA A A B B B B

J18

Blue

J19 J22 J31

J32 J38GR

J40 J41

J45

A A A A

BlackJ50 J51

1 2 34 5 6 7 8

M 2

7

1413

65

1211

43

109

21

8

M 3

109876

54321

M 6

109876

54321

N 3

1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 18

N 4

5 6 7 8 910

11 12 13 14

3 421

15 16 17 1819 20

R 2


21/23

28

CONNECTOR LIST

543216 7 8 9 101112

R 3

1

2

R15

1

2

R16

1098765

4321

S 5

21 3 4 5 6 7

8 9 101112131415 16

S22

21 3 4 5 6 7 8 9 101112 13

14 15 16171819 2021222324 25

S23

543216 7 8 9 101112

S24

235

7891012

4

11

1

6

T 8

543216 7 8 9 101112

T 9

2

3 4

1

U 1

1 2

W 7


22/23

17

OVERALL ELECTRICAL WIRING DIAGRAM

1

2

3

4

28

G

S

430

/GS

300

2

ACC

IG1

AM1

3

1J

3

40A AM1

1

1

120A ALT

1

1J

4

15A

RADIO

NO.

2

1H

1

0

1C

1

34 AA

AAII

Rightside

ofthe

cowlpanel

IF

Leftkick

panel

EB

Left

fender

A

2G

6

From Engine andECT ECU

2A

1

15A

TV

2H

8

1

A+B1

4

AACC

5

CTX+

5

BSPD

1

BAUI+

10

BAUI

18

BACC

9

B +B

5

ATX+

10

ATX

17

BGND1

5

BSPD

BM

Quarter

panelRH

A

From StereoComponentAmplifier

LY

B

GRB

GRR

GR

WB

WB

WL

B B

W

BL

YB

RY

GB

YG

GRGR

LB(2)

LR(2)

GR

GRR

GR

GRR GRR

LW

VW

LB(2)

LR(2)

GR

GRR

LW

O

LR VW

WB

WBWBLR

WB WB

WB

J10JUNCTIONCONNECTOR

J18

JUNCTION

C

ONNECTOR

J8

JUNCTION

CONNECTOR

J22(LHD)

J45(RHD)

JUNCTION

CONNECTOR

U 1KEY INTERLOCKSOLENOID[UNLOCKWARNING SW]

I12

IGNITIONSW

P

owerSource

ShiftLock

LEXUSN

avigationSystem

1

1

2

2

BATTERY

7

1

10

5

9

2

4

From A/T Indicator Light SW[Neutral Start SW]

A

A

IF

Leftkick

panel

A

J32

JUNCTION

CONNECTOR

WB

WB

(RHD)

(LHD) (LHD)

(RHD)

(LHD)

(LHD)

(LHD)(LHD)

13

ID3

IJ2

12

(LHD)

(RHD)

A

B

(RHD)

D

A

(LHD)

D

A

(LHD)

A

B

(RHD)

JUNCTION CONNECTOR

BAJ13 J38,

3

3G

3

3A

(LHD)

(RHD)

KLS+

E

NSSD

ATL

NSSL

AT4

ACC

10

IG2

IM2

10

1

IG2

IR1

1

3

IG2

IR1

2

12

IG2

IR1

7

3H

3

(LHD)

(RHD)

1J

1

15A

EC

UIG

1H

5EE

BR

(RHD) CC

BR

(RHD)

S5

SHIFTLOCK

CONTROLECU

BR

(RHD) 3

13

2F

BB

BR

(LHD) (LHD)

BR

J 7JUNCTIONCONNECTOR



1D

4

10A

GAUGE

4

BY

1

1K

1

1A

(LHD)

(RHD)

GW

8STP From Stop Light SW

WB

(RHD)

M2

M3

,

MULTIDISPLAY

A

B

M

6

,

C

A

2

RL

A

3

LGB

IG

RL

Body ECU No. 2

B

14

PB

9

IJ2

IE2

9

To CheckConnector

(LHD)

(RHD)

B

13

YBTo Parking Brake SW

14

BGY RB

FromA/TIndicatorSW

[NeutralStartSW]

3

IM3

IL3

3

(LHD)

(RHD)

N3

N4

,

NAVIGATIONECU

A

B

GRB

15

GR

(Cont.

nextpage)

DR

TC

PKB

PB

SMUT

REV

6

IG1

7

IG1

2

BAUO+

1

1

BAUO

To Front Door SpeakerLH(LHD), RH(RHD) LG(2)

L(2)

P(2)

V(2)

8

IG1

9

IG1

10

CTX O

To Speedometer[Comb. Meter]

V(1)

P(1)

LR(LHD 1)L(RHD 1)

LB(LHD 1)LG(RHD 1)

AA

GR GR

(1)(1)

(2)


(2)

CC

10

IM3

(2)

VW

(1)

VW

(1)J51JUNCTIONCONNECTOR

FromSpeedometer

[Comb.

Meter]

16

IG2

FromStereoComponentAmplifier

GR

(1)

(2) (2)

2

:ExceptMARKLEVINSON

1

:MARKLEVINSON


23/23

OVERALL ELECTRICAL WIRING DIAGRAM

5

6

7

8

28

G

S

430

/GS

300

(Cont'd)

6

CVG

1

CVR

8

CSYNC

3

CB

7

CG

2

CR

4

B

11

B

3

BTX1+

10

BTX1

6

A VG

1

A VR

8

ASYNC

3

A B

2

A R

To Radio and Player

Y

W

B

R

P

V

Y

W

B

R

M

2

M3

,

MULTIDISPLAY

A

B

N3

N4

,

NAVIGATIONECU

A

B

LEX

US

NavigationSystem

(Shielded) (Shielded)

FromGateway

ECU

4

IG2

IR1

3

14

IG2

IR1

9

5

IG2

IR1

4

15

IG2

IR1

10

65

13

IG2

IR1

8

7

A GG G

IG2

IR1

6

AGND1 WB

IH

Instrumentpanel

braceRH(LHD)

Instrumentpanel

braceLH(RHD)

WB

M6

,

C

BR

Y

TX3+

TX3

(LHD)

(RHD)

From Radio and Player

lexus_gs300_gs430_service_manual 6

Documents