C1255

DTC C1255 EBTCM Internal Malfunction:

CIRCUIT DESCRIPTION
This DTC identifies a malfunction within the EBTCM.

CONDITIONS FOR SETTING THE DTC
An internal EBTCM malfunction exists.

ACTION TAKEN WITH THE DTC SETS
^ A malfunction DTC is stored.
^ The ABS/TCS/Stabilitrak is disabled.
^ The ABS indicator is turned ON.
^ The TRACTION CONTROL indicator is turned ON.
^ The DIC displays the SERVICE STABILITY SYS message.
^ For some DTC C1255xx, the Magna Steer is disabled and the DIC displays the SERVICE STEERING SYS message.

CONDITIONS FOR CLEARING THE DTC
^ The condition for DTC is no longer present and you used scan tool Clear DTCs function.
^ The condition for DTC is no longer present and you used the On-Board Clear DTCs function.
^ The EBTCM does not detect the DTC in 50 drive cycles.

DIAGNOSTIC AIDS
^ When the scan tool displays the DTC, 2 more numbers follow the DTC. Note the 2 numbers and any other DTCs. The 2 numbers with the DTC are an engineering aid in order to determine the cause of the internal malfunction.
^ A DTC C1255e2 can be caused by a battery or module connector disconnect. Inspect for a recent battery disconnect or module connector disconnect before replacing the EBTCM.
^ A DTC C1255m5 can be set along with any wheel speed sensor DTC. Diagnose any wheel speed sensor DTCs before replacing the EBTCM. Make sure the integrity of the connection between the EBTCM and the BPMV is secure, tight, and free from corrosion.