Toyota Yaris: Lighting System / Turn Signal Switch Circuit

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Vehicle Exterior / Lighting (ext) / Lighting System / Turn Signal Switch Circuit

DESCRIPTION

The steering sensor receives the turn signal switch information and controls the turn signal lights.

WIRING DIAGRAM

PROCEDURE

1.

READ VALUE USING GTS

(a) Read the Data List according to the display on the GTS.

Chassis > Steering Angle Sensor > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Turn Signal Switch (Right)

Turn signal switch (right) signal

OFF or ON

OFF: Turn signal switch not in right turn position

ON: Turn signal switch in right turn position

-

Turn Signal Switch (Left)

Turn signal switch (left) signal

OFF or ON

OFF: Turn signal switch not in left turn position

ON: Turn signal switch in left turn position

-

Cornering Light/Front Side Illuminate Light Switch

Turn signal switch (full turn) signal

OFF or ON

OFF: Turn signal switch not in left or right turn position

ON: Turn signal switch in left or right full turn position

-

OK:

Normal conditions listed above are displayed.

Chassis > Steering Angle Sensor > Data List

Tester Display

Turn Signal Switch (Right)

Turn Signal Switch (Left)

Cornering Light/Front Side Illuminate Light Switch

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

2.

INSPECT TURN SIGNAL SWITCH

Click here

NG

REPLACE TURN SIGNAL SWITCH

OK

3.

INSPECT STEERING WHEEL SWITCH HOUSING

Click here

OK

REPLACE STEERING SENSOR

NG

REPLACE STEERING WHEEL SWITCH HOUSING

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