Lexus SC300 / Lexus SC400. Service manual — part 1011

213

R 4(A)

RADIO AND PLAYER

(A) 3–GROUND :

APPROX. 12 VOLTS WITH IGNITION SW AT ACC OR ON POSITION

(A) 4–GROUND :

ALWAYS APPROX. 12 VOLTS

S14(B)

STEREO POWER AMPLIFIER

(B) 7–GROUND :

ALWAYS CONTINUITY

: PARTS LOCATION

CODE

SEE PAGE

CODE

SEE PAGE

CODE

SEE PAGE

A15

28

L 6

30

S14

B

31

A32

30

R 2

B

29

S22

A

29

C 9

D

28

R 3

C

29

S23

B

29

C20

A

30

R 4

A

29

T16

A

31

C21

B

30

R12

31

T17

B

31

F11

30

R13

31

W 9

31

F12

30

S13

A

31

W10

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)

1C

20

INSTRUMENT PANEL WIRE

1E

20

FLOOR WIRE

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

CODE

SEE PAGE

JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)

IF1

36

FRONT DOOR LH WIRE AND COWL WIRE (LEFT KICK PANEL)

IF2

36

FRONT DOOR LH WIRE AND COWL WIRE (LEFT KICK PANEL)

IG2

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)

IQ2

38

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

BT1

40

FLOOR WIRE AND COWL WIRE (LEFT KICK PANEL)

BV1

BV2

40

FLOOR NO. 3 WIRE AND CONSOLE BOX WIRE (UNDER THE INSTRUMENT PANEL CENTER)

BV3

40

FLOOR NO. 3 WIRE AND CONSOLE BOX WIRE (UNDER THE INSTRUMENT PANEL CENTER)

Bc1

40

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

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

II

36

UNDER THE ASHTRAY RH

BM

40

BACK PANEL CENTER

: SPLICE POINTS

CODE

SEE PAGE

WIRE HARNESS WITH SPLICE POINTS

CODE

SEE PAGE

WIRE HARNESS WITH SPLICE POINTS

I30

38

CONSOLE BOX WIRE

B23

I31

38

CONSOLE BOX WIRE

B24

40

FLOOR NO. 3 WIRE

B16

B25

40

FLOOR NO. 3 WIRE

B19

40

FLOOR NO. 3 WIRE

B35

40

FLOOR MAIN WIRE

B22

B37

40

FLOOR NO. 3 WIRE

SERVICE HINTS

214

RADIO AND PLAYER (w/o CD PLAYER)

II

FROM POWER SOURCE SYSTEM (SEE PAGE 56)

BV2

8

Bc1

10

Bc2

1

Bc1

24

BV1

4

BV1

5

BV1

6

BV1

3

Bc1

23

Bc1

8

Bc1

9

BV1

19

BV1

7

BV1

18

BV2

2

BV2

1

B19

B19

B16

B19

I31

IC

6

BM

C

9

A

5

A

1

A

2

C

8

A

4

A

10

C

1

C

5

C

7

Bc2

4

Bc2

3

P–L

P–L

P–L

P–L

GR

L–Y

GR

L–Y

P–L

P–G

L–W

Y–R

BR

LG

L

B–

R

GR

L–Y

B–

R

GR

GR

L–

Y

P–

L

L–

Y

Y–

R

L–W

P–

G

P–

G

L–W

Y–

R

BR

LG

L

LG

L

LG

W–

B

BR

W–

B

P–

L

W

B

R–

B

P–

L

W

B

P–

B

R–

W

B–

W

GR

L–Y

GR

WOOFER SPEAKER AMPLIFIER

W10

W 9
WOOFER
SPEAKER

RADIO AND PLAYER

A

B

C

D

R 2

, R 3

, R 5

, R 6

AUTO ANTENNA MOTOR
AND RELAY

A32

A

B

T16

T17

TELEPHONE
TRANSCEIVER AND
SPEAKER RELAY

6

5

1

2

10

9

7

1

2

5

4

3

3

8

6

7

15A
ECU–IG

AMP

RU–

RU+

MUTE

WP+

WP–

ACC

+B

P–

L

2

1

4

IG

ACC

MUTE

ANTB

ANTA

FR–

AMP

IQ2

12

BR

BR

(W/

T

E

L

)

(W/O TEL)

L

(W/

T

E

L

)

E

(W/

O

T

EL

)

AMP

RU–

RU+

ANT

ANT

ANTA

ANTB

E

FR+

FR–

B

FR+

(SHIELDED)

(SH

IEL

D

ED

)

A

5

A

12

215

TLMT

B

FL+

FL–

RL+

RL–

RADIO AND PLAYER

RR+

RR–

IF2

10

IF2

1

IQ2

6

IQ2

7

BT1

5

BU1

6

BV1

10

BV2

10

BV2

9

BV2

4

BV2

3

Bc2

12

Bc2

11

IG2

1

IG2

2

Bc1

20

B

3

B

1

B

6

B

2

11

14

13

12

B

4

B

12

B

5

A

3

C

2

C

6

D

2

D

6

D

1

D

3

VOLC

VOL+

PWR

MUTE

SP–

SP+

L

V

L

L

LG

P

B

Y

R

W

V

PP

V

B

Y

R

W

G–

R

R–

L

R–

W

G–

Y

A/C CONTROL SW AND RADIO SW

TELEPHONE
TRANSCEIVER AND
SPEAKER RELAY

RH

LH

FRONT DOOR SPEAKER

LH

RH

REAR SPEAKER

A15

T16

,

F12

F11

R12

R13

R 2

, R 3

, R 5

, R 6

A

B

C

D

A

B

1

1

2

2

V

IP1

10

IP1

1

A

12

A

5

B

5

B

12

LG

(W/

T

E

L

)

LG

LG

(W/

T

E

L

)

(W/O TEL)

LG

L

L

LG

T16

,

SHORT CONNECTOR

SHORT
CONNECTOR

L

P

V

B

Y

R

W

C

4

C

3

BV2

7

BV1

2

IQ1

3

IQ2

11

I31

IE1

2

IG2

3

1E

10

2

L–Y

GR

GR

L–Y

L–Y

GR

GR

L–

Y

L–Y

GR

L–Y

L–Y

L–Y

7. 5A
RADIO
NO. 2

20A
RADIO
NO. 1

FROM POWER SOURCE SYSTEM (SEE PAGE 56)

SG

N

D

VO

L

C

VO

L

+

PWR

1

1

2

2

7

8

SGND

ACC

V

T16

,

B

B

(W/

O

T

EL

)

V

T17

A

T17

A

7

T1

216

RADIO AND PLAYER (w/o CD PLAYER)

R 5(A)

RADIO AND PLAYER

(A) 3–GROUND :

APPROX. 12 VOLTS WITH IGNITION SW AT ACC OR ON POSITION

(A) 4–GROUND :

ALWAYS APPROX. 12 VOLTS

(A) 7–GROUND :

ALWAYS CONTINUITY

: PARTS LOCATION

CODE

SEE PAGE

CODE

SEE PAGE

CODE

SEE PAGE

A15

28

R 3

B

29

T16

A

31

A32

30

R 5

C

29

T17

B

31

F11

30

R 6

D

29

W 9

31

F12

30

R12

31

W10

31

R 2

A

29

R13

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)

1C

20

FLOOR WIRE

1E

20

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)

IF2

36

FRONT DOOR LH WIRE AND COWL WIRE (LEFT KICK PANEL)

IG2

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)

IQ2

38

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

BT1

40

FLOOR WIRE AND COWL WIRE (LEFT KICK PANEL)

BU1

40

INSTRUMENT PANEL WIRE AND FLOOR WIRE (LEFT KICK PANEL)

BV1

40

FLOOR NO 3 WIRE AND CONSOLE BOX WIRE (UNDER THE INSTRUMENT PANEL CENTER)

BV2

40

FLOOR NO. 3 WIRE AND CONSOLE BOX WIRE (UNDER THE INSTRUMENT PANEL CENTER)

Bc1

40

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

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

II

36

UNDER THE ASHTRAY RH

BM

40

BACK PANEL CENTER

: SPLICE POINTS

CODE

SEE PAGE

WIRE HARNESS WITH SPLICE POINTS

CODE

SEE PAGE

WIRE HARNESS WITH SPLICE POINTS

I31

38

CONSOLE BOX WIRE

B19

40

FLOOR NO. 3 WIRE

B16

40

FLOOR NO. 3 WIRE

SERVICE HINTS