Brake Fluid Pump Relay: Description and Operation
CIRCUIT DESCRIPTION
The ABS motor relay supplies power to the ABS pump motor. While the ABS & TRAC & VSC are activated, the ECU switches the motor relay ON and operates the ABS pump motor.
Fail safe function:
If trouble occurs in the ABS motor relay circuit, the ECU cuts off current to the ABS solenoid relay and prohibits ABS & TRAC & VSC controls and the brake system becomes normal.