Anti-Lock Brake System Control Module
| ITEM | DESCRIPTION |
|---|---|
| 1 | Rear right brake outlet port |
| 2 | Rear left brake outlet port |
| 3 | Front right brake outlet port |
| 4 | Front left brake outlet port |
| 5 | Hydraulic connector to the brake fluid reservoir |
| 6 | Primary circuit inlet port |
| 7 | Secondary circuit inlet port |
| 8 | Electric motor |
| 9 | Hydraulic Control Unit (HCU) |
| 10 | Electrical connector |
The Anti-Lock Brake System (ABS) control module controls the 2 Electric Park Brake (EPB) actuators separately. A tilt sensor and accelerometers gravity (G) sensor are integrated into the Restraints Control Module (RCM). These sensors communicate with ABS module on the High Speed (HS) Controller Area Network (CAN) Power Mode Zero systems bus. The tilt sensor allows the ABS control module to determine the longitudinal attitude of the vehicle. The G sensor allows the ABS control module to monitor the vehicle's deceleration.
Hardwired connections with the EPB switch provide the ABS control module the EPB apply and EPB release inputs. The wheel speed sensors are also hardwired to ABS control module. Inputs from components of Powertrain Control Module (PCM) are received by the ABS control module on the Flexray as follows:
- Accelerator Pedal Position (APP) sensor
- Brake pedal switch.
The Transmission Control Module (TCM) sends the Gear position signal to the ABS control module on the HS CAN Power Mode Zero bus.
In addition to the hardwired outputs to the EPB actuators, the ABS control module outputs status and fault signals on the HS CAN chassis systems bus. These output signals operate the warning indicators and they advise other systems if there is a fault with the EPB system.