Lexus LS400 (2000 year). Service manual — part 57

BE0BK–01

Z14984

BE–56

–

BODY ELECTRICAL

FOG LIGHT SYSTEM

1919

INSPECTION

1.

INSPECT FOG LIGHT RELAY CONTINUITY

Condition

Tester connection

Specified condition

Constant

1 – 2

Continuity

Apply B+ between

terminals 1 and 2.

3 – 4

Continuity

If continuity is not as specified, replace the relay.
2.

INSPECT FOG LIGHT RELAY CIRCUIT
(See page

BE–23

)

BE0BL–01

I03240

–

BODY ELECTRICAL

FOG LIGHT SYSTEM

BE–57

1920

ADJUSTMENT

ADJUST FOG LIGHT AIM

A–bolt: Vertical Direction

BE0BM–01

I03230

Engine Room Junction Block

HAZ Fuse

Hazard Warning Switch

Front Turn
Signal Light

Instrument Panel Junction Block

TURN Fuse

Combination Switch

Turn Signal Switch

Light Control Switch

Rear Combination Light

Rear Turn Signal Light

Turn Signal Flasher

BE–58

–

BODY ELECTRICAL

TURN SIGNAL AND HAZARD WARNING SYSTEM

1921

TURN SIGNAL AND HAZARD WARNING SYSTEM

LOCATION

BE0BN–01

I03480

Wire Harness Side

Z08888

ON

–

BODY ELECTRICAL

TURN SIGNAL AND HAZARD WARNING SYSTEM

BE–59

1922

INSPECTION

1.

INSPECT TURN SIGNAL FLASHER CIRCUIT

Disconnect the connector from the combination switch and in-
spect the connect on the wire harness side, as shown.

Tester connection

Condition

Specified condition

2 – Ground

Constant

Continuity

3 – Ground

Constant

Continuity

5 – Ground

Turn signal switch RIGHT or OFF

No continuity

5 – Ground

Turn signal switch LEFT

Continuity

6 – Ground

Turn signal switch LEFT

No continuity

6 – Ground

Turn signal switch RIGHT

Continuity

7 – Ground

Constant

Continuity

8 – Ground

Hazard warning switch OFF

No continuity

8 – Ground

Hazard warning switch ON

Continuity

1 – Ground

Ignition switch LOCK or ACC

No voltage

1 – Ground

Ignition switch ON

Battery positive voltage

4 – Ground

Constant

Battery positive voltage

If circuit is as specified, replace the relay.
If circuit is not as specified, inspect the circuits connected to oth-
er parts.

2.

INSPECT HAZARD WARNING SWITCH CONTINUITY

Switch position

Tester connection

Specified condition

OFF

7 – 10

Continuity

ON

7 – 8

Continuity

Illumination circuit

2 – 3

Continuity

If continuity is not as specified, replace the switch.