Lexus SC300 / Lexus SC400. Service manual — part 967

225

26

ELECTRICAL WIRING ROUTING

Position of Parts in Engine Compartment

A

1

A/C Ambient Temp. Sensor

E

1

ECT Solenoid

A

2

A/C Lock Sensor and A/C Magnetic Clutch

E

2

EFI Water Temp. Sensor

A

3

A/C High Pressure SW

E

3

EGR Gas Temp. Sensor (for USA Spec.)

A

4

ABS Actuator

E

5

Engine Hood Courtesy SW

A

5

ABS Actuator (w/ Traction Control)

E

6

Engine Oil Level Warning SW

A

6

ABS Actuator (w/ Traction Control)

A

7

ABS Speed Sensor Front LH

F

1

Front Airbag Sensor LH

A

8

ABS Speed Sensor Front RH

F

2

Front Airbag Sensor RH

A

9

Air Flow Meter

F

3

Front Clearance Light LH

A

10

Alternator

F

4

Front Clearance Light RH

A

11

Alternator

F

5

Front Side Marker Light LH

A

33

ABS Actuator (w/o Traction Control)

F

6

Front Side Marker Light RH

F

7

Front Turn Signal Light LH

B

1

Brake Fluid Level SW

F

8

Front Turn Signal Light RH

B

6

Back–Up Light SW (for M/T)

F

9

Fuse Block

C

3

Check Connector

H

1

Headlight Hi LH

C

6

Cornering Light LH

H

2

Headlight Hi RH

C

7

Cornering Light RH

H

3

Headlight Lo LH

C

8

Cruise Control Actuator

H

4

Headlight Lo RH

H

5

Horn LH

D

13

Distributor

H

6

Horn RH

27

Position of Parts in Engine Compartment

I

1

ISC Valve

S

3

Speed Sensor No. 1

I

2

Igniter

S

4

Speed Sensor No. 2 (for ECT)

I

4

Ignition Coil

S

6

Starter

I

6

Injector No. 1

S

7

Starter

I

7

Injector No. 2

S

8

Sub Throttle Actuator

I

8

Injector No. 3

S

9

Sub Throttle Position Sensor

I

9

Injector No. 4

I

10

Injector No. 5

T

1

Theft Deterrent Horn

I

11

Injector No. 6

T

2

Throttle Position Sensor

T

3

Traction Brake Actuator

K

1

Knock Sensor No. 1 (on Front Side)

T

4

Traction Brake Actuator

K

2

Knock Sensor No. 2 (on Rear Side)

T

5

Traction pump and Motor

N

1

Neutral Start SW, Back–Up Light SW and A/T Indicator SW

V

1

VSV (for EGR) (Exc. USA Spec)

(for A/T)

V

2

VSV (for EVAP)

N

2

Noise Filter (for Defogger System)

V

4

VSV (for Water Valve)

N

3

Noise Filter (for Ignition System)

V

7

VSV (for Intake Control Valve)

O

2

Oil Pressure SW

W

1

Washer Level SW

O

3

Oxygen Sensor Main No. 1 (on Front Side)

W

2

Washer Motor

O

4

Oxygen Sensor Main No. 2 (on Rear Side)

W

3

Water Temp. Sender

W

5

Wiper Motor

P

1

PPS Solenoid

P

20

Power Steering Pressure SW

28

ELECTRICAL WIRING ROUTING

Position of Parts in Instrument Panel

A

12

A/C Control Assembly

C

9

CD Player

A

13

A/C Control Assembly

C 10

Center Airbag Sensor Assembly

A

14

A/C Control Assembly

C

11

Cigarette Lighter

A

15

A/C Control SW and Radio SW

C 12

Combination Meter

A

16

A/C Evaporator Temp. Sensor

C 13

Combination Meter

A

17

A/C Power Transistor

C 14

Combination Meter

A

18

A/C Power Transistor

C 15

Combination SW

A

19

A/C Room Temp. Sensor

C 16

Combination SW

A

20

A/C Solar Sensor

C 17

Combination SW

A

21

A/T Indicator Light (for Shift Lever)

C 19

Cruise Control ECU

A

22

ABS ECU (for M/T, w/o Traction Control)

C 23

Clutch Start SW

A

23

ABS ECU (for M/T, w/o Traction Control)

C 24

Cruise Control Clutch SW

A

24

ABS and Traction ECU

A

25

ABS and Traction ECU

D

1

Diode (for Brake Fluid Level)

A

26

ABS and Traction ECU

D

2

Diode (for Parking Brake)

A

27

Air Mix Control Servo Motor

D

3

Diode (for Tension Reduser)

A

28

Air Vent Mode Control Servo Motor

A

29

Airbag Squib

E

8

ECT Pattern Select SW

A

33

Air Inlet Control Servo Motor

E

9

Engine and ECT ECU (for A/T)

E

10

Engine and ECT ECU (for A/T)

B

2

Blower Motor

E

11

Engine ECU (for M/T)

B

3

Blower Resistor (for Low Speed)

E

12

Engine ECU (for M/T)

F

10

Fuel Lid Opener SW

G

1

Glove Box Light

G

2

Glove Box Light SW