Lexus ES300 (1997 year). Manual - part 169

BE04S–01

N21302

D

B

A

C

I

J

K

L

M

N

O

P

H

G

F

E

R

S

T

U

V

Y

27

28

29

30

1

2

3

5

7

9

11

16

17

4

6

8

10

12

13

18

19

20

21

22

23

24

25

26

14

15

Q

W

X

–

BODY ELECTRICAL

POWER SOURCE

BE–11

1395

1997 LEXUS ES300   (RM511U)

INSPECTION

1.

INSPECT ENGINE ROOM JUNCTION BLOCK CIRCUIT

(a)

Remove the fuse from the junction block and inspect the
connector on junction block side.

Fuse

Tester  connection

Condition

Specified  condition

MAIN

1 – Ground

Constant

Battery positive voltage

DOME

4 – Ground

Constant

Battery positive voltage

ECU–B

6 – Ground

Constant

Battery positive voltage

RADIO No.1

7 – Ground

Ignition switch turned to ACC or ON

Battery positive voltage

SHORT PIN

9 – Ground

Constant

Battery positive voltage

HAZARD

11 – Ground

Constant

Battery positive voltage

AM2

13 – Ground

Constant

Battery positive voltage

TEL

15 – Ground

Constant

Battery positive voltage

HEAD (LH)

17 – Ground

Constant

Battery positive voltage

ALT–S

19 – Ground

Constant

Battery positive voltage

HEAD (RH)

21 – Ground

Constant

Battery positive voltage

EFI

23 – Ground

Constant

Battery positive voltage

HORN

25 – Ground

Constant

Battery positive voltage

RDI

28 – Ground

Constant

Battery positive voltage

CDS

30 – Ground

Constant

Battery positive voltage

N21303

1

4

5

A

B

C

D

E

F

G

H

I

K

J

M

L

2

3

BE–12

–

BODY ELECTRICAL

POWER SOURCE

1396

1997 LEXUS ES300   (RM511U)

If the circuit is not as specified, inspect the circuits connected
to other parts.
(b)

Remove the relay from the junction block and inspect the
connector on junction block side.

Relay

Tester  connection

Condition

Specified  condition

ST

C – Ground

Constant

Battery positive voltage

HEAD

E – Ground

Constant

Battery positive voltage

HEAD

H – Ground

Constant

Battery positive voltage

EFI

J – Ground

Constant

Continuity

ENGINE MAIN

M – Ground

Constant

Battery positive voltage

ENGINE MAIN

Q – Ground

Ignition switch turned to ON

Battery positive voltage

FAN No.1

U – Ground

Constant

Battery positive voltage

HORN

V – Ground

Constant

Battery positive voltage

HORN

Y – Ground

Constant

Battery positive voltage

If the circuit is not as specified, inspect the circuits connected
to other parts.
2.

CANADA Models Only:
INSPECT ENGINE ROOM No.2 RELAY BLOCK CIR-
CUIT

(a)

Remove the fuse from the relay block and inspect the con-
nector on relay block side.

Fuse

Tester  connection

Condition

Specified  condition

H – LP RH (LO)

2 – Ground

Constant

Battery positive voltage

H – LP LH (LO)

3 – Ground

Constant

Battery positive voltage

DRL No.2

5 – Ground

Constant

Battery positive voltage

If the circuit is not as specified, inspect the circuits connected
to other parts.

N21304

F

G

H

I

J

1

2

A

B

C

D

E

–

BODY ELECTRICAL

POWER SOURCE

BE–13

1397

1997 LEXUS ES300   (RM511U)

(b)

Remove the relay from the relay block and inspect the
connector on relay block side.

Relay

Tester  connection

Condition

Specified  condition

DRL No.3

D – Ground

Constant

Continuity

DRL No.3

A – Ground

Constant

Battery positive voltage

DRL No.3

E – Ground

Constant

Battery positive voltage

DRL No.4

H – Ground

Constant

Battery positive voltage

DRL No.4

I – Ground

Constant

Battery positive voltage

DIM

J – Ground

Constant

Battery positive voltage

If the circuit is not as specified, inspect the circuits connected
to other parts.
3.

INSPECT ENGINE ROOM No.3 RELAY BLOCK CIR-
CUIT

(a)

Remove the fuse from the relay block and inspect the con-
nector on relay block side.

Fuse

Tester  connection

Condition

Specified  condition

ABS

2 – Ground

Constant

Battery positive voltage

If the circuit is not as specified, inspect the circuits connected
to other parts.
(b)

Remove the relay from the relay block and inspect the
connector on relay block side.

Relay

Tester  connection

Condition

Specified  condition

ABS SOL

F – Ground

Constant

Continuity

ABS SOL

E – Ground

Constant

Battery positive voltage

ABS MTR

G – Ground

Constant

Battery positive voltage

If the circuit is not as specified, inspect the circuits connected
to other parts.

Z18767

BE–14

–

BODY ELECTRICAL

POWER SOURCE

1398

1997 LEXUS ES300   (RM511U)

4.

INSPECT INSTRUMENT PANEL JUNCTION BLOCK
CIRCUIT