C1255

CIRCUIT DESCRIPTION
Diagnostic Trouble Code (DTC) C1255 identifies an internal malfunction detected by the Electronic Brake Control Module (EBCM).

CONDITIONS FOR SETTING THE DTC
Diagnostic Trouble Code (DTC) C1255 is set when an internal Electronic Brake Control Module (EBCM) malfunction exists.

ACTION TAKEN WHEN THE DTC SETS
^ A malfunction Diagnostic Trouble Code (DTC) stores.
^ The ABS disables.
^ The ABS warning indicator turns ON.
^ The red BRAKE warning indicator turns ON and DTC C1286 sets if the rear piston in the ABS brake motor pack is not in the home piston.

CONDITIONS FOR CLEARING THE DTC
^ The condition responsible for setting the Diagnostic Trouble Code (DTC) no longer exists and the Scan Tool Clear DTCs function is used.
^ 100 drive cycles pass with no DTCs detected. A drive cycle consists of starting the vehicle, driving the vehicle over 16 km/h (10 mph), stopping and then turning the ignition OFF.

DIAGNOSTIC AIDS
Use the enhanced diagnostic function of the Scan Tool in order to measure the frequency of the malfunction. Clear the Diagnostic Trouble Codes (DTCs) after completing the diagnosis. Test drive the vehicle for three drive cycles in order to verify that the DTC does not reset. Use the following procedure in order to complete one drive cycle:
1. Start the vehicle.
2. Drive the vehicle over 16 km/h (10 mph).
3. Stop the vehicle.
4. Turn the ignition to the OFF position.





DTC C1255 EBCM INTERNAL MALFUNCTION