Operation CHARM: Car repair manuals for everyone.

Brake Fluid Pump Relay: Description and Operation

ABS Motor Relay Circuit
The ABS motor relay supplies power to the ABS pump motor. While the ABS is activated, the ECU switches the ABS motor relay ON and operates the ABS pump motor.


ABS & TRAC Motor Relay Circuit
The ABS & TRAC motor relay supplies power to the ABS & TRAC pump motor. While the ABS is activated, the ECU switches the ABS & TRAC motor relay ON and operates the ABS & TRAC pump motor.