Parking Brake System: Description and Operation

Parking Brake System Components





Parking Shoes and Hardware





Automatic Parking Brake Release Components

Electronic Parking Brake Release
The parking brake release uses an electrically operated solenoid to release the park brake. The solenoid is mounted on the parking brake control. With the brake pedal depressed and the gear shift lever shifted from the park position, the solenoid retracts to release the parking brake.

Operation of the actuator is controlled through release and return relays. Output from the electronic cluster controls the opening and closing of the relay contacts. The cluster actually provides a path to ground for the coils in the relays. Actuation of the cluster depends on input signals from the brake pedal switch, park brake switch and a gear shift-operated micro switch.