ABS - With Traction Control

DTC C1255:

CIRCUIT DESCRIPTION
This DTC identifies an internal malfunction detected by the EBCM/EBTCM ABS motor driver interface, custom integrated circuit.

ACTION TAKEN WHEN THE DTC SETS
A malfunction DTC is stored, ABS/ETS is disabled, and the amber ABS warning indicator is turned on. The red BRAKE warning indicator is turned on if the rear piston in the ABS brake motor pack is not in the home position.

CONDITIONS FOR CLEARING DTC
Condition for DTC is no longer present and the scan tool (CLEAR DTCs) function is used, or 100 drive cycles have passed with no DTC(s) detected.

DIAGNOSTIC AIDS
An intermittent malfunction may be caused by a poor connection, rubbed-through wire insulation, or a wire that is broken inside the insulation. The frequency of the malfunction can be checked by using the enhanced diagnostic function of the Scan Tool. After diagnosis is complete, clear the DTCs and test drive the vehicle for three drive cycles to verify that the DTC does not reset. A drive cycle consists of starting the vehicle, driving the vehicle over 16 km/h (10 mph), stopping, and then turning the ignition off.