Lexus ES300 (1997 year). Manual - part 628

11

X

13

X

15

1

2

X

X

X

X X

3

2

2

1

2

5

X

4

6

7

X

D D D

(HINT : SEE PAGE 7)

A

A

A

A

A

A

(HINT : SEE PAGE 7)

A A A

A A

A A A A A A A A

(HINT : SEE PAGE 7)

B B

B

(HINT : SEE PAGE 7)

X

X

F

F

(HINT : SEE PAGE 7)

D D

X X

(HINT : SEE PAGE 7)

1

2

1

2

C 8

C11

F 3

GRAY

F 4

GRAY

H 9

BLACK

J 2

BLACK

J15

J16

ORANGE

R15 GRAY

R14 GRAY

J17

BLUE

A

J31

B

J32

T 6

3

3

2

1

3

108

B13

B 7

FROM POWER SOURCE SYSTEM (SEE PAGE 56)

BP

A

W–

B

W–

B

W–

B

G–

R

RG

–

W

G

–

W

T

SENSOR

B13

W–B

W–B

W–

B

IF3

5

D

3

A

7

REAR LIGHTS
WARNING LIGHT
[COMB.  METER]

D

C 7

, C10

A

R–

L

R–

L

Y–

G

R–

L

–G

R

–

L

2

7

L 4

11

8

4

1

DELAY

LIGHT FAILURE

Y

W

2

1

STOP LIGH
SW

S10

D

D

JUNCTION
CONNECTOR

J 4

1

3

1

3

W–

B

G–

R

G–

R

HIG

H

 M

O

UN

T

E

D

ST

O

P

 L

IG

H

T

ST

O

P

 L

IG

H

T

 L

H

[R

EAR

 C

O

M

B

. 

 L

IG

H

T

 L

H

]

ST

O

P

 L

IG

H

T

 R

H

[R

EAR

 C

O

M

B

. 

 L

IG

H

T

 R

H

]

H1

1

R 6

R 8

1

2

JUNCTION
CONNECTOR

J37

BN

15A
STOP

1C

7

10A
GAUGE

1S

1

1D

2

1S

2

1R

4

109

STOP LIGHT

7

X

X

X

X X

3

1

2

D D D

(HINT : SEE PAGE 7)

A

A

A

A

A

A

(HINT : SEE PAGE 7)

X

4

2

1

X 7 8

X 11 X

1

1

1

2

A

BLUE

C 7

D

BROWN

C10

H11

R 8

GRAY

R 6

GRAY

L 4

J37

J 4

BLACK

S10

BLUE

3

3

110

CURRENT IS APPLIED AT ALL TIMES THROUGH A STOP FUSE TO TERMINAL 2 OF THE STOP LIGHT SW. WHEN THE IGNITION
SW IS TURNED ON, CURRENT FLOWS FROM THE GAUGE FUSE TO TERMINAL 8 OF THE LIGHT FAILURE SENSOR, AND ALSO
FLOWS THROUGH THE REAR LIGHTS WARNING LIGHT TO TERMINAL 4 OF THE LIGHT FAILURE SENSOR.

STOP LIGHT DISCONNECTION WARNING

WHEN THE IGNITION SW IS TURNED ON AND THE BRAKE PEDAL IS PRESSED (STOP LIGHT SW ON), IF THE STOP LIGHT
CIRCUIT IS OPEN, THE CURRENT FLOWING FROM TERMINAL 7 OF THE LIGHT FAILURE SENSOR TO TERMINALS 1, 2
CHANGES, SO THE LIGHT FAILURE SENSOR DETECTS THE DISCONNECTION AND THE WARNING CIRCUIT OF THE LIGHT
FAILURE SENSOR IS ACTIVATED. AS A RESULT, THE CURRENT FLOWS FROM TERMINAL 4 OF THE LIGHT FAILURE SENSOR 



TERMINAL 11

  

  GROUND AND TURNS THE REAR LIGHT WARNING LIGHT ON. BY PRESSING THE BRAKE PEDAL, THE

CURRENT FLOWING TO TERMINAL 8 OF THE LIGHT FAILURE SENSOR KEEPS THE WARNING CIRCUIT ON AND THE WARNING
LIGHT ON UNTIL THE IGNITION SW IS TURNED OFF.

S10 

STOP LIGHT SW

2–1 : CLOSED WITH THE BRAKE PEDAL DEPRESSED

L 4 

 LIGHT FAILURE SENSOR

1, 2, 7–GROUND : APPROX. 12 VOLTS WITH THE STOP LIGHT SW ON

1,

 4, 8–GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION

 

,1, 

11–GROUND : ALWAYS CONTINUTIY

: PARTS LOCATION

CODE

SEE PAGE

CODE

SEE PAGE

CODE

SEE PAGE

C 7

A

28

J 4

29

R 6

31

C10

D

28

J37

30

R 8

31

H11

30

L 4

30

S10

29

: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

CODE

SEE PAGE

JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)

1C

24

COWL WIRE AND INSTRUMENT PANEL J/B (LOWER FINISH PANEL)

1D

24

INSTRUMENT PANEL WIRE AND INSTRUMENT PANEL J/B (LOWER FINISH PANEL)

1R

24

COWL WIRE AND INSTRUMENT PANEL J/B (LOWER FINISH PANEL)

1S

24

FLOOR WIRE AND INSTRUMENT PANEL J/B (LOWER FINISH PANEL)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

CODE

SEE PAGE

JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)

IF3

36

FLOOR WIRE AND INSTRUMENT PANEL WIRE (LEFT KICK PANEL)

: GROUND POINTS

CODE

SEE PAGE

GROUND POINTS LOCATION

BN

40

UNDER THE LEFT CENTER PILLAR

BP

40

BACK PANEL CENTER

: SPLICE POINTS

CODE

SEE PAGE

WIRE HARNESS WITH SPLICE POINTS

CODE

SEE PAGE

WIRE HARNESS WITH SPLICE POINTS

B 7

40

FLOOR WIRE

B13

40

FLOOR WIRE

SYSTEM OUTLINE

SERVICE HINTS

FROM POWER SOURCE SYSTEM (SEE PAGE 56)

IK2

2

IK3

3

A

A

A

BN

R–

JUNCTION
CONNECTOR

R–

L

R–

L

R–

B

R–B

R–

B

R–B

JUNCTION
CONNECTOR

R–

B

W–

B

J25

R–

L

A

D

B

F

JUNCTION
CONNECTOR

B

J28

, J29

A

1

B14

.

B 9

W–

B

R

–

B

BACK–UP L
SW
[PARK/NEU
 POSITION 

P 1

W–

B

JUNCTION
CONNECTOR

J37

A

C

A

C

J28

A

3

1

BACK–UP
LIGHT RH
[REAR COMB  
 LIGHT RH]

R 9

BACK–UP
LIGHT LH
[REAR COMB. 
 LIGHT LH]

R 7

3

8

2

IGHT

TRAL
SW]

10A
GAUGE

1J

1

L

1V

5

1S

13

111

BACK–UP LIGHT