Lexus ES300 (1997 year). Service manual - part 175

Z19393

Front Fog Light

Fog Light Relay

Combination Switch

 Front Fog Light Switch

Instrument Panel Junction Block

 FOG Fuse

BE050–01

–

BODY ELECTRICAL

FOG LIGHT SYSTEM

BE–35

1419

1997 LEXUS ES300   (RM511U)

FOG LIGHT SYSTEM

LOCATION

BE051–01

N21571

ON

OFF

11     10

N21563

Wire Harness Side

1 2 3 4 5

6 7 8

9 101112131415

17

16

N14863

1

2

3

5

5

2

1

3

BE–36

–

BODY ELECTRICAL

FOG LIGHT SYSTEM

1420

1997 LEXUS ES300   (RM511U)

INSPECTION

1.

INSPECT FOG LIGHT SWITCH CONTINUITY

Switch position

Tester connection

Specified  condition

OFF

–

No continuity

ON

10 – 11

Continuity

If continuity is not as specified, replace the switch.

2.

INSPECT COMBINATION SWITCH CIRCUIT

Connect the wire harness side connector to the combination
switch and inspect wire harness side connector from the back
side.

Tester connection

Condition

Specified  condition

10– Ground

Headlight dimmer switch High Beam or Flash

No continuity

10– Ground

Headlight dimmer switch Low Beam

Continuity

11 – Ground

Light control switch OFF or TAIL

No voltage

11 – Ground

Light control switch HEAD

Battery positive voltage

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

3.

INSPECT FOG LIGHT RELAY CONTINUITY

Condition

Tester connection

Specified  condition

Constant

1 – 2

Continuity

Apply B+ between

terminals 1 and 2.

3 – 5

Continuity

If continuity is not as specified, replace the relay.

–

BODY ELECTRICAL

FOG LIGHT SYSTEM

BE–37

1421

1997 LEXUS ES300   (RM511U)

4.

INSPECT FOG LIGHT RELAY CIRCUIT

Remove the relay from the driver’s side relay block and inspect
the connector on relay block side.

Tester connection

Condition

Specified condition

3 – Ground

Constant

Continuity

1 – Ground

Light control switch HEAD

Battery positive voltage

5 – Ground

Constant

Battery positive voltage

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

BE052–01

N21573

BE–38

–

BODY ELECTRICAL

FOG LIGHT SYSTEM

1422

1997 LEXUS ES300   (RM511U)

ADJUSTMENT

ADJUST FOG LIGHT AIM
A–bolt:  Vertical Direction