C0273

CIRCUIT DESCRIPTION

DTC Detecting Condition:

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

Wiring Diagram:

Steps 1 - 2:

Steps 3 - 4:

Steps 5 - 6:

INSPECTION PROCEDURE

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