Integrated Anti-Lock Brake System Control Module And Hydraulic Control Unit
| ITEM | DESCRIPTION |
|---|---|
| 1 | Rear right brake |
| 2 | Front left brake |
| 3 | Front right brake |
| 4 | Rear left brake |
| 5 | Primary circuit inlet port |
| 6 | Secondary circuit inlet port |
The Anti-lock Brake System (ABS) control module controls the 2 Electric Park Brake (EPB) actuators separately.
A longitudinal motion sensor is integrated into the Restraints Control Module (RCM) which communicates with the ABS control module on the High Speed (HS) Controller Area Network (CAN) powertrain systems bus. The longitudinal motion sensor allows the ABS control module to determine the longitudinal attitude of the vehicle and to monitor the deceleration of the vehicle. For additional information, refer to: AIRBAG SUPPLEMENTARY RESTRAINT SYSTEM .
The 4 hardwired connections within the EPB switch give the ABS control module the EPB apply and EPB release inputs. The EPB is integrated into the ABS control module. The 4 wheel speed sensors are also hard wired into the ABS control module.
Inputs from other components are received on the HS CAN powertrain systems bus circuit as follows:
- Accelerator Pedal Position (APP) sensor, from the Powertrain Control Module (PCM).
- Stop lamp switch, from the PCM.
- Gear position, from the Gear Shift Module (GSM).
In addition to the hardwired outputs to the EPB actuators, the ABS control module outputs status and fault signals on the HS CAN powertrain systems bus. These outputs operate the warning indicators and advise other systems if there is a fault with the EPB system.