DTC 13

CIRCUIT DESCRIPTION
The ABS motor relay supplies power to the ABS pump motor. While the ABS & BA & TRAC & VSC are activated, the ECU switches the motor relay ON and operates the ABS pump motor.




DETECTING CONDITIONS

Fail safe function:
If any trouble occurs in the ABS motor relay circuit, the ECU cuts off current to the ABS solenoid relay and prohibits ABS & BA & TRAC & VSC controls and the brake system becomes normal.




WIRING DIAGRAM
















INSPECTION PROCEDURE

HINT: Start the inspection from step 1 in case of using the LEXUS hand-held tester and start from step 2 in case of not using LEXUS hand-held tester.