Lexus SC300 / Lexus SC400. Manual — part 980

236

GROUND POINT

FRONT TURN SIGNAL
LIGHT LH

ENGINE HOOD
COURTESY SW

TRACTION PUMP AND
MOTOR

HEATER RELAY

ABS ACTUATOR RELAY

TELEPHONE
TRANSCEIVER
AND SPEAKER RELAY

ENGINE OIL LEVEL
WARNING SW

COMBINATION METER
(E1)

EFI ECU

TRACTION ECU

CHECK CONNECTOR
(E1)

CORNERING LIGHT LH

FRONT SIDE MAKER
LIGHT LH

BRAKE FLUID LEVEL
SW

FRONT CLEARANCE
LIGHT LH

FRONT SIDE MAKER
LIGHT RH

FRONT CLEARANCE
LIGHT RH

ABS ACTUATOR

FRONT TURN SIGNAL
LIGHT RH

CRUISE CONTROL
ACTUATOR

OXYGEN SENSOR SUB
(FOR USA SPEC. )

TDCL (E1)

WASHER LEVEL SW

EFI MAIN RELAY

CORNERING LIGHT RH

A/C PRESSURE SW
(HIGH PRESSURE)

AIR FLOW METER

POWER STERRING
PRESSURE SW

NOISE FILTER
(FOR IGNITION SYSTEM)

E 4

E10

E12

2

2

BS1

4

E 4

E 7

E 1

E 5

EB

EA

I23

I33

E16

I32

E20

E20

E20

IK2

24

ED

EC

IK1

1

BY1

5

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

BR

BR

W–B

BR

BR

BR

W–B

BR

BR–B

BR

BR

BR

BR

W–

B

W–

B

W–

B

W–

B

W–

B

W–

B

W–

B

W–

B

W–

B

BR

BR

BR

BR

BR

BR

BR

W–

B

BR

B

R

BR

(EO1)

(E11)

(E1)

(EO2)

I27

BR

(S1)

(E1)

NOISE FILTER (FOR
IGNITION SYSTEM)

W–B

W/ TRACTION SYSTEM

NOISE FILTER
(FOR DEFOGGER SYSTEM)

W–

B

W–

B

237

GLOVE BOX LIGHT SW

CIGARETTE LIGHTER

LUGGAGE COMPARTMENT
DOOR OPENER SW

COMBINATION METER
(EP)

O/D MAIN SW

RHEOSTAT

DOOR LOCK MOTOR,
DOOR UNLOCK
DETECTION SW AND
DOOR OPEN DETECTION
SW LH

MIRROR HEATER LH

DOOR KEY LOCK AND
UNLOCK SW LH

POWER WINDOW
MASTER SW

REMOTE CONTROL
MIRROR SW

KEY INTER LOCK
SOLENOID
[IGNITION SW]

UNLOCK WARNING SW
[IGNITION SW]

TURN SIGNAL SW
[COMB. SW]

WIPER AND WASHER SW
[COMB. SW]

LIGHT CONTROL SW
[COMB. SW]

DIMMER SW
[COMB. SW]

INTEGRATION RELAY

POWER MAIN RELAY

HAZARD SW

A/C CONTROL
ASSEMBLY

A/T INDICATOR LIGHT
(FOR SHIFT LEVER)

SEAT HEATER SW

TRACTION CUT SW AND
SEAT HEATER SW

SHIFT LOCK ECU

3G

8

3F

8

3F

7

3D

10

3D

9

3A

2

1F

6

1K

6

3H

15

3H

14

3H

3

1D

10

1G

3

1G

4

IF

IG

1E

18

3A

1

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–

B

CENTER AIRBAG
SENSOR ASSEMBLY

I29

W–B

W–B

3G

3

I38

I 8

1K

5

WIPER MOTOR

SEAT HEATER RELAY

KICK DOWN SW

THEFT DETERRENT
AND DOOR LOCK ECU

HEADLIGHT HI RH

HEADLIGHT HI LH

COMBINATION METER
(HIGH BEAM)

CRUISE CONTROL SW
[COMB. SW]

E 3

I 1

4

4

1K

12

IE1

11

IH1

1

CRUISE CONTROL ECU
(GND)

1J

1

I 7

1G1

8

I 5

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

R

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–

B

W–

B

W–

B

W–

B

W–

B

IQ1

10

W–B

(E1)

(E2)

TILT AND POWER
TELESCOPIC ECU
(GND2)

W–B

(A/T)

(M/T)

W–B

1H

13

I38

B 4

B31

MOON ROOF CONTROL
RELAY

MOON ROOF LIMIT SW

MOON ROOF MOTOR

MOON ROOF CONTROL
SW

PERSONAL LIGHT

VANITY LIGHT LH

VANITY LIGHT RH

PERSONAL LIGHT

VANITY LIGHT RH

VANITY LIGHT LH

B 3

B 1

B 1

B 2

B

W–B

B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

BZ1

4

BZ1

5

B

W–B

W–

B

(CANADA)

W–

B

(W

/O

M

OON

R

OOF

)

(W

/

M

OON

R

OOF

)

(W/O MEMORY MIRROR)

W–

B

(CANADA)

238

GROUND POINT

RADIO AND PLAYER

WOOFER SPEAKER
AMPLIFIER

STEREO POWER
AMPLIFIER

CHOKE COIL

HIGH MOUNT STOP
LIGHT

HIGH MOUNT STOP
LIGHT

FUEL LID OPENER
SOLENOID

WIRELESS DOOR LOCK
ECU

POWER SEAT CONTROL
SW (FOR PASSENGER’ S
SEAT)

POWER SEAT ECU
(FOR PASSENGER’ S

SEAT)

SEAT HEATER RH
(FOR PASSENGER’ S

SEAT BACK)

PPS ECU

REMOTE CONTROL
MIRROR ECU

I31

II

BV2

8

IQ2

12

B23 : PIONEER
B24 : NAKAMICHI

BR

BR

BR

BR

(W/O CD PLAYER)

(W/ CD PLAYER)

BR

BR

A/C POWER
TRANSISTOR

BLOWER RESISTOR
(FOR LOW SPEED)

ABS ECU

ABS AND
TRACTION
ECU

TRACTION ECU (GND)

DOOR LOCK CONTROL
SW

MIRROR HEATER RH

DOOR LOCK MOTOR,
DOOR UNLOCK
DETECTION SW AND
DOOR OPEN DETECTION
SW RH

DOOR KEY LOCK AND
UNLOCK SW RH

HEADLIGHT LO LH

I25

I14

B33

B 6

B 7

HEADLIGHT LO RH

B20

B21

B29

E 1

I11

I12

I13

IJ

BL

Bd1

2

Bb1

4

IJ1

13

IP1

20

IN1

1

IE2

12

IE1

19

BX1

10

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–

B

W–

B

W–

B

W–

B

W–B

(W/ REAR SPOILER)

(W/O REAR SPOILER)

W–

B

W–

B

W–

B

W–

B

(GND2)

(GND3)

(GND2)

(GND3)

(GND1)

W–

B

W–

B

BR

I27

W–

B

W–B

WOOFER SPEAKER
AMPLIFIER

BU2

8

(W/O CD PLAYER)

P–L

BR

239

* 2 : W/O DRIVING POSITION MEMORY

* 1 : W/ DRIVING POSITION MEMORY

TILT AND POWER
TELESCOPIC
ECU (ECUE)

RECLINING POSITION
SENSOR
[POWER SEAT MOTOR]

SLIDE POSITION
SENSOR LH

POWER SEAT
CONTROL SW
(FOR DRIVER’ S SEAT)

FRONT VARTICAL
POSITION SENSOR

REAR VARTICAL
POSITION SENSOR

POWER SEAT ECU
(FOR DRIVER’ S SEAT)

COMBINATION
METER (E2)

I 5

B28

B26

B27

B 8

Ba2

13

BT1

13

IF2

13

BU1

6

IH

POWER SEAT ECU
(FOR DRIVER’ S SEAT)

POWER SEAT
CONTROL SW
(FOR DRIVER’ S SEAT)

SEAT HEATER LH
(FOR DRIVER’ S

SEAT BACK)

BUCKLE SW LH

FUEL SENDER

FUEL PUMP

FUEL PUMP ECU

AUTO ANTENNA
MOTOR

LIGHT FAILURE
SENSOR

LUGGAGE COMPARTMENT
KEY UNLOCK SW

LICENCE PLATE LIGHT

REAR COMB. LIGHT
LH

REAR COMB. LIGHT
RH

B26

B27

B13

I22

B14

B15

BK

BM

Ba1

12

Ba2

5

BR–B

BR–B

BR–B

BR–B

BR–B

BR–B

BR–B

BR–B

BR

BR–B

BR–B

BR–B

BR–B

BR–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

W–

B

W–B

W–B

W–B

W–B

W–B

W–B

W–B

BR

–

B

BR

–

B

BR

–

B

BR

W–

B

W–

B

(GND)

(GND2)

(W/ MEMORY)

(W/ MEMORY)

W–B

DRIVING POSITION
MEMORY AND RETURN SW

(* 1)
(* 2)