Sienna LE V6-3.0L (1MZ-FE) (1998)
Brake Fluid Pump Relay: Description and Operation
CIRCUIT DESCRIPTION
The ABS motor relay supplies power to the ABS pump motor. While the ABS is activated1 the ECU switches the ABS motor relay ON and
operates the ABS pump motor.
Fail safe function:
If any trouble occurs in the ABS motor relay circuit, the ECU cuts off current to the ABS solenoid valve relay and prohibits ABS control.