Lexus ES300 (1997 year). Service manual — part 238

N21307

C D

B

A

F

E

H

G

J L I

M

K

O

N

Q

P

T

U

V

R

S

BE–16

–

BODY ELECTRICAL

POWER SOURCE

1400

1997 LEXUS ES300 (RM511U)

5.

INSPECT INSIDE ENGINE ROOM JUNCTION BLOCK
CIRCUIT

Remove the relay from the relay block and inspect the connec-
tor on relay block side.

Relay

Tester connection

Condition

Specified condition

MG/CLT

C – Ground

Constant

Continuity

MG/CLT

D – Ground

Ignition switch turned to ON

Battery positive voltage

C/OPN

G – Ground

Constant

Continuity

FAN No.2

L – Ground

Constant

Continuity

FAN No.2

J – Ground

Ignition switch turned to ON

Battery positive voltage

FAN No.2

K – Ground

Constant

Battery positive voltage

FAN No.3

P – Ground

Constant

Battery positive voltage

HEATER

U – Ground

Constant

Continuity

HEATER

R – Ground

Ignition switch turned to ON

Battery positive voltage

HEATER

V – Ground

Constant

Battery positive voltage

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

N21308

1

2

3

4

–

BODY ELECTRICAL

POWER SOURCE

BE–17

1401

1997 LEXUS ES300 (RM511U)

6.

INSPECT FUSIBLE LINK BLOCK CIRCUIT

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

Fuse

Tester connection

Condition

Specified condition

HTR

1 – Ground

Ignition switch turned to ON

Battery positive voltage

ALT

4 – Ground

Constant

Battery positive voltage

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

N21557

Instrument Panel Junction Block

POWER OUTLET Fuse

Power Outlet

BE04T–01

BE–18

–

BODY ELECTRICAL

POWER OUTLET

1402

1997 LEXUS ES300 (RM511U)

POWER OUTLET

LOCATION

N21499

Instrument Panel
Junction Block

Integration Relay

GAUGE Fuse

Ignition Switch and
Key Unlock Warning Switch

BE04U–01

–

BODY ELECTRICAL

IGNITION SWITCH AND KEY UNLOCK WARNING
SWITCH

BE–19

1403

1997 LEXUS ES300 (RM511U)

IGNITION SWITCH AND KEY UNLOCK WARNING SWITCH

LOCATION