SRT-4 L4-2.4L Turbo VIN S (2004)
The CAB continuously monitors the speed of each wheel through the signals generated by the wheel speed sensors to determine if any wheel is beginning
to lock. When a wheel locking tendency is detected, the CAB commands the CAB command coils to actuate. The CAB command coils then open and
close the valves in the HCU that modulate brake fluid pressure in some or all of the hydraulic circuits. The CAB continues to control pressure in
individual hydraulic circuits until a locking tendency is no longer present.
The CAB contains a self-diagnostic program that monitors the antilock brake system for system faults. When a fault is detected, the amber ABS warning
lamp is turned on and the fault diagnostic trouble code (DTC) is then stored in a diagnostic program memory. These DTC's will remain in the CAB
memory even after the ignition has been turned off. The DTC's can be read and cleared from the CAB memory by a technician using the DRB scan tool.
If not cleared with a DRB scan tool, the fault occurrence and DTC will be automatically cleared from the CAB memory after the identical fault has not
been seen during the next 3,500 miles of vehicle operation.
CONTROLLER ANTILOCK BRAKE INPUTS
-
wheel speed sensors (four)
-
brake lamp switch
-
ignition switch
-
system relay voltage
-
ground
-
diagnostic communication (PCI)
CONTROLLER ANTILOCK BRAKE OUTPUTS
-
amber ABS warning indicator lamp actuation (through MIC)
-
red BRAKE warning indicator lamp actuation (through MIC)
-
diagnostic communication. (PCI)
