Neon L4-2.0L DOHC (1996)
Electronic Brake Control Module: Description and Operation
Fig 1 Controller Anti-Lock Brake System (CAB)
Fig 2 Controller Anti-Lock System (CAB)
The Controller, Antilock Brake (CAB) located under the lefthand side of the instrument panel is a microprocessor device which monitors wheel speed
and controls Antilock Brake System (ABS). The CAB monitors the speed of each wheel through the signals generated at the wheel speed sensors to
determine if any wheel is beginning to lock. If any wheel lock is detected, the CAB commands the Hydraulic Control Unit (HCU) to modulate pressure
to some or all of the hydraulic circuits.
The CAB constantly monitors the ABS system for proper operation. If the CAB detects a fault, it will turn on the ABS warning lamp and disable the
ABS braking system. The CAB contains a self-diagnostic program which will store system faults in a diagnostic program memory. There are multiple
fault messages which may be stored in the CAB memory and can be displayed with a DRB or equivalent scan tool. These faults will remain in the CAB
memory even after the ignition has been turned off.
