Description And Operation: Overview

The Electric Park Brake (EPB) is an electrically-actuated system that operates the calipers on the rear brakes. The system consists of:

• An EPB switch
• Two EPB actuators
• Clutch pedal position sensor (manual transmission vehicles only)
• Two warning indicators
• Anti-lock Brake System (ABS) control module

The EPB control module, integrated in the ABS control module, controls the EPB. The system uses two actuators to apply and release the rear disc brakes. The EPB switch activates software to start the operation of the EPB. The EPB has the following operating modes:

• Static apply/release
• Ignition off apply (manual transmission vehicles only)
• Drive Away Release
• Automatic transmission release
• High temperature reclamp
• Driver exit warning
• Roll away reclamp
• Dynamic apply

Signals from other vehicle systems for operation of the EPB are transmitted to the ABS control module on the High Speed (HS) Controller Area Network (CAN) chassis and powertrain systems Bus.