Electronic Parking Brake Module

WARNING: This page is about a different car, the 2015 Land Rover LR2, 2014 Land Rover LR2, and 2013 Land Rover LR2. However, it is still accessible from the selected car via links, so may be relevant.

The EPB module is located behind the rear left quarter trim panel in the luggage compartment.

The EPB module controls the two EPB actuators using a dual micro controller to provide separate control transmission for each actuator. A sensor is integrated into the EPB module. This sensor allows the EPB module to determine the longitudinal attitude of the vehicle and allows the EPB module to monitor vehicle deceleration.

Separate battery power feeds for the EPB actuators are supplied to the EPB module from the RJB. A further power feed is supplied to the EPB module from the ignition relay in the CJB.

Four hardwired connections with the EPB switch provide the EPB module with parking brake apply and release inputs. Inputs from other components are received on the high speed CAN, as follows:

wheel speed sensors, from the ABS module
APP sensor, from the CJB
Stop lamp switch, from the CJB
clutch position sensor, from the CJB (manual transmission vehicles only)
reverse gear switch, from the CJB (manual transmission vehicles only)
gear position, from the TCM (automatic transmission vehicles only)
1st gear switch, from the ECM (manual transmission vehicles only)
neutral sensor, from the ECM (manual transmission vehicles only).

In addition to the hardwired outputs to the EPB actuators, the EPB module outputs status and fault signals on the high speed CAN to operate the warning indicators and advise other systems if there is a fault with the EPB system.

A parking brake warning indicator in the message center can be illuminated red or yellow. The EPB module operates the warning indicator using high speed CAN messages to the IC. When the parking brake is applied in the static mode, the warning indicator is permanently illuminated red while the ignition is on, and for at least 10 seconds after the ignition is goes off. If a fault is detected while the parking brake is applied, the warning indicator flashes red. If a fault is detected while the parking brake is released, the warning indicator flashes yellow. All fault indications are accompanied by a related message displayed in the message center and a warning chime.