Lexus SC300 / Lexus SC400. Manual — part 1012

192

REAR WINDOW DEFOGGER AND MIRROR HEATER

1B

1

1C

7

1D

1

1H

4

3A

1

1J

1

2

2

2

1A

5

3G

3

1D

10

2

2

1E

18

IE1

13

IQ1

13

IP1

20

IG1

16

IP1

4

Bc2

10

BL

IF

IJ

E 9

A

10

B

7

2

3

4

1

1

2

W–B

B

B

B

R–

L

R–

Y

R–

Y

R–

Y

R–

Y

W–

B

W–

B

L

–

R

B

B

L–R

L–R

B

W–

B

W–

B

W–

B

W–

B

FROM POWER SOURCE SYSTEM (SEE PAGE 56)

10A
HTR

50A
DEFOGGER

10A
MIR–HTR

DEFOGGER
RELAY

REAR
WINDOW
DEFOGGER

CHOKE
COIL

MIRROR
HEATER LH

MIRROR
HEATER RH

RDFGR

GND

IQ1

10

W–

B

D

E

F

OGG

E

R

S

W

[A

/C

CO

N

T

R

O

L

AS

SEM

BL

Y

]

A1

2

,

A

1

3

C22

R16

R17

B

A

4

3

2

1

EB

B

4

A

7

B

4

A

7

A

8

B

5

A

8

B

5

(W/ MEMORY)
(W/O MEMORY)

(W/ MEMORY)
(W/O MEMORY)

B

W–

B

NO

IS

E

F

IL

T

E

R

N2

A

1

B

1

B

L

R14

, R15

A

B

7

X X X

X

X

X

10

1

2

1

2

8 7

B

A

N 2

C22

A13

A12

A

(W/ MEMORY)

R16, R17

5 4

B

R16, R17

(W/O MEMORY)

1

R14

, R15

A

B

193

DEFOGGER RELAY

2–4 : CLOSED WITH IGNITION SW AT ON POSITION AND DEFOGGER SW (A/C CONTROL ASSEMBLY) ON

: PARTS LOCATION

CODE

SEE PAGE

CODE

SEE PAGE

CODE

SEE PAGE

A12

B

28

R14

A

31

R17

A

31

A13

A

28

R15

B

31

R17

B

31

C22

30

R16

A

31

N 2

27

R16

B

31

: RELAY BLOCKS

CODE

SEE PAGE

RELAY BLOCKS (RELAY BLOCK LOCATION)

2

19

ENGINE COMPARTMENT LEFT

: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

CODE

SEE PAGE

JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)

1A

20

ENGINE ROOM MAIN WIRE

1B

20

ENGINE ROOM MAIN WIRE

1C

20

FLOOR WIRE

1D

20

FRONT DOOR LH WIRE

1E

20

INSTRUMENT PANEL WIRE

1H

20

COWL WIRE

1J

20

COWL WIRE

3A

22

INSTRUMENT PANEL WIRE

3G

22

INSTRUMENT PANEL WIRE

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

CODE

SEE PAGE

JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)

IE1

36

ENGINE ROOM MAIN WIRE AND COWL WIRE (R/B NO. 4)

IG1

36

INSTRUMENT PANEL WIRE AND COWL WIRE (R/B NO. 5)

IP1

38

FRONT DOOR RH WIRE AND COWL WIRE (RIGHT KICK PANEL)

IQ1

38

INSTRUMENT PANEL WIRE AND CONSOLE BOX WIRE (UNDER THE INSTRUMENT PANEL CENTER)

Bc2

40

FLOOR NO. 3 WIRE AND FLOOR WIRE (UNDER THE LEFT SIDE OF REAR SEAT CUSHION)

: GROUND POINTS

CODE

SEE PAGE

GROUND POINTS LOCATION

EB

34

FRONT SIDE OF LEFT FENDER

IF

36

LEFT KICK PANEL

IJ

36

RIGHT KICK PANEL

BL

40

UNDER THE CENTER PILLAR RH

: SPLICE POINTS

CODE

SEE PAGE

WIRE HARNESS WITH SPLICE POINTS

CODE

SEE PAGE

WIRE HARNESS WITH SPLICE POINTS

E 9

34

ENGINE ROOM MAIN WIRE

SERVICE HINTS

190

SEAT HEATER

1

3

2

1

3

2

1

3

2

1

3

2

4

3A

1

3H

14

1E

18

1J

1

IG2

10

BY1

3

BU1

2

Bb1

14

IF

BK

BL

Ba1

12

FROM POWER SOURCE SYSTEM (SEE PAGE 56)

15A
SEAT–HTR

1

G

L

L

G

B

B

W–

B

G

Y

W

Y

W

W–

B

W–

B

W–

B

W–

B

W–

B

W–

B

SEAT HEATER
(FOR DRIVER’ S

SEAT CUSION)

SEAT HEATER
(FOR PASSENGER’ S

SEAT BACK)

SEAT HEATER
(FOR DREVER’ S

SEAT BACK)

SEAT HEATER
(FOR PASSENGER’ S

SEAT CUSION)

S16

S15

S18

S17

2

LH

RH

B

5

A

7

B

1

A

8

B

B

A

A

3 10

4

3

Ba2

2

Ba1

14

(M/

T

)

(A/

T

)

(W/ MEMORY POWER SEAT)
(W/O MEMORY POWER SEAT)

SEAT HEATER SW

S24

, T 1 2

B

A

Ba2

5

(W/ MEMORY POWER SEAT)
(W/O MEMORY POWER SEAT)

Bb1

4

G

G

191

T12

SEAT HEATER SW

7–GROUND : APPROX. 12 VOLTS WITH SW AT ON POSITION
8–GROUND : ALWAYS CONTINUITY

: PARTS LOCATION

CODE

SEE PAGE

CODE

SEE PAGE

CODE

SEE PAGE

S15

32

S17

32

S24

B

29

S16

32

S18

32

T12

A

29

: RELAY BLOCKS

CODE

SEE PAGE

RELAY BLOCKS (RELAY BLOCK LOCATION)

4

23

LEFT KICK PANEL (J/B NO. 1 LEFT)

: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

CODE

SEE PAGE

JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)

1E

20

INSTRUMENT PANEL WIRE

1J

20

COWL WIRE

3A

22

INSTRUMENT PANEL WIRE

3H

22

INSTRUMENT PANEL WIRE

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

CODE

SEE PAGE

JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)

IG2

36

INSTRUMENT PANEL WIRE AND COWL WIRE (R/B NO. 5)

BU1

40

FLOOR WIRE AND INSTRUMENT PANEL WIRE (LEFT KICK PANEL)

BY1

40

INSTRUMENT PANEL WIRE AND FLOOR NO. 3 WIRE (RIGHT KICK PANEL)

Ba1

42

FLOOR WIRE AND FRONT SEAT LH WIRE (UNDER THE FRONT LH SEAT)

Ba2

42

FLOOR WIRE AND FRONT SEAT LH WIRE (UNDER THE FRONT LH SEAT)

Bb1

42

FLOOR NO. 3 WIRE AND FRONT SEAT RH WIRE (UNDER THE FRONT RH SEAT)

: GROUND POINTS

CODE

SEE PAGE

GROUND POINTS LOCATION

IF

36

LEFT KICK PANEL

BK

40

UNDER THE CENTER PILLAR LH

BL

40

UNDER THE CENTER PILLAR RH

1

3

2

1

2

3

3

X

1 0

X

7

8

X

S 1 5 , S 1 7

S 1 6 , S 1 8

O R A N G E

1

X

3

4

5

X

B

A

S 2 4

T 1 2

SERVICE HINTS