Lexus SC300 / Lexus SC400. Service manual — part 1021

105

TURN SIGNAL FLASHER

(4) 3

– GROUND: CHANGES FROM APPROX. 12 VOLTS TO 0 VOLTS WITH IGNITION SW ON AND TURN SIGNAL SW LEFT, OR WITH

HAZARD SW ON

(4) 5

– GROUND: CHANGES FROM APPROX. 12 VOLTS TO 0 VOLTS WITH IGNITION SW ON AND TURN SIGNAL SW RIGHT, OR WITH

HAZARD SW ON

(4)

4 – GROUND: CONTINUITY WITH TURN SIGNAL SW LEFT, OR HAZARD SW ON

(4) 2

– GROUND: CONTINUITY WITH TURN SIGNAL SW RIGHT, OR HAZARD SW ON

(4)

1 – GROUND: APPROX. 12 VOLTS WITH IGNITION SW ON OR HAZARD SW ON

: PARTS LOCATION

CODE

SEE PAGE

CODE

SEE PAGE

CODE

SEE PAGE

C13

A

28

F 7

26

R10

31

C14

B

28

F 8

26

R11

31

C16

28

H 7

29

: RELAY BLOCKS

CODE

SEE PAGE

RELAY BLOCKS (RELAY BLOCK LOCATION)

2

19

ENGINE COMPARTMENT LEFT

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)

1A

20

ENGINE ROOM MAIN WIRE

1C

20

FLOOR WIRE

1E

20

INSTRUMENT PANEL WIRE

1H

1J

20

COWL WIRE

1K

20

COWL WIRE

3A

3D

22

INSTRUMENT PANEL WIRE

3G

: 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)

IG2

36

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

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)

: GROUND POINTS

CODE

SEE PAGE

GROUND POINTS LOCATION

EA

34

FRONT SIDE OF RIGHT FENDER

EB

34

FRONT SIDE OF LEFT FENDER

IF

36

LEFT KICK PANEL

BM

40

BACK PANEL CENTER

: SPLICE POINTS

CODE

SEE PAGE

WIRE HARNESS WITH SPLICE POINTS

CODE

SEE PAGE

WIRE HARNESS WITH SPLICE POINTS

I 7

38

COWL WIRE

B15

40

FLOOR MAIN WIRE

SERVICE HINTS

106

TURN SIGNAL AND HAZARD WARNING LIGHT

183

UNLOCK AND SEAT BELT WARNING

184

UNLOCK AND SEAT BELT WARNING

1E

12

3A

4

3D

13

1B

5

2

B

1

A

7

1E

1

1H

13

1D

10

1J

1

1C

12

1D

8

1I

15

9

10

6

3

2

1

BK

IF

10A
DOME

10A
GAUGE

SEAT BELT
WARNING LIGHT
[COMB. METER]

INTEGATION RELAY

BUZZER

TIMER

UNLOCK
WARNING SW
[IGNITION SW]

BUCKLE
SW LH

DOOR OPEN
DETECTION
SW LH

FROM POWER SOURCE SYSTEM (SEE PAGE 56)

FROM POWER SOURCE SYSTEM (SEE PAGE 56)

C12

, C14

D10

B 4

I15

R

R

Y

Y

W–

B

W–

B

W–

B

Y

W–

B

W–

B

W

–B

W

–B

B

–L

B

–L

R–

W

W–

B

W–

B

V

8

6

5

10

1

7

9

A

B

1

2

(W/ MEMORY)
(W/O MEMORY)

(W/ MEMORY)
(W/O MEMORY)

Ba1

14

Ba2

5

Ba2

6

Ba1

11