TRW EBC 125 Controller Antilock Brake (Cab)
WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
The CAB is mounted directly to the hydraulic control unit (HCU) that includes a microprocessor and two solenoids that control the valves that control brake pressure during RWAL braking and circuits that:
- Monitor the brake switch input to tell whether or not to prepare for possible antilock braking
- Monitor the brake fluid level switch input to tell whether or not the state of the hydraulics has a problem
- Monitor the wheel speed sensor input to determine when a rear wheel is tending to lock up
- Operate the integral hydraulic control unit (HCU) during antilock braking based on comparing the speed sensor to information programmed in memory.
- Detect RWAL system related problems and take diagnostic action
- Able to execute self-tests and output control commands