Parking Brake System: Description and Operation: Overview

Parking Brake

Overview
The parking brake is an electrically actuated system that operates on the rear brake calipers. Two cables are connected to the rear brake calipers, and act directly on the same pistons used for normal, hydraulic rear brake actuation. For additional information, refer to Rear Disc Brake
The parking brake is controlled by the EPB (electronic parking brake) module. In response to commands from the driver through the parking brake switch, the EPB module controls operation of the parking brake actuator. The actuator adjusts the tension of the brake cables to apply and release the rear brake calipers. Features of the parking brake include:
- Manual apply.
- Manual release.
- Automatic release.
A service mode is also available and must be activated using the Jaguar approved diagnostic system. This allows the decoupling of the components and prevention of damage to the actuator. When in service mode all switch functions will be inhibited.