Lexus ES manuals

Lexus ES: Automatic High Beam Switch Indicator does not Come ON

Lexus ES (XZ10) Service Manual / Vehicle Exterior / Lighting (ext) / Lighting System (for Gasoline Model) / Automatic High Beam Switch Indicator does not Come ON

DESCRIPTION

When the automatic high beam system is on, the steering sensor illuminates the automatic high beam switch indicator.

WIRING DIAGRAM

PROCEDURE

1.

READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Chassis / Steering Angle Sensor / Data List.

(e) Read the Data List according to the display on the Techstream.

Chassis > Steering Angle Sensor > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Auto High Beam Main Switch

Automatic high beam switch signal

OFF or ON

OFF: Automatic high beam switch off

ON: Automatic high beam switch on

-

Chassis > Steering Angle Sensor > Data List

Tester Display

Auto High Beam Main Switch

OK:

Normal conditions listed above are displayed.

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

2.

INSPECT TURN SIGNAL SWITCH

(a) Remove the turn signal switch.

Click here

(b) Inspect the turn signal switch.

Click here

NG

REPLACE TURN SIGNAL SWITCH

OK

3.

INSPECT STEERING WHEEL SWITCH HOUSING

(a) Remove the steering wheel switch housing.

Click here

(b) Inspect the steering wheel switch housing.

Click here

OK

REPLACE STEERING SENSOR

NG

REPLACE STEERING WHEEL SWITCH HOUSING

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