C1231

CIRCUIT DESCRIPTION

DTC Detecting Condition:

Fail safe function:
If a trouble has occurred in the steering angle sensor circuit, the ECU prohibits the BA & TRAC & VSC controls.

Wiring Diagram:

Steps 1 - 2:

Steps 3 - 4:

INSPECTION PROCEDURE

HINT: Start the inspection from step 1 in case of using the LEXUS hand-held tester and start from step 3 in case of not using the LEXUS hand-held tester.