C1503

DTC C1503 TCS SWITCH FAILURE (only System with TCS)

DESCRIPTION
When the TCS switch is pressed, TCS control is deactivated and the TCS OFF indicator lights up. The TCS OFF indicator turns - ON. when the HECU prohibits TCS controls.





DTC DETECTING CONDITION

FAIL-SAFE FUNCTION
Inhibit the TCS control and allow the ABS/EBD control. Meanwhile, stop checking the TCS switch failure under the TCS control.

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INSPECTION PROCEDURES