ABS - With Commercial Chassis

CIRCUIT DESCRIPTION
This DTC identifies a malfunction within the EBTCM.

CONDITION FOR SETTING THE DTC
DTC C1255 is set when an internal EBTCM malfunction exists.

ACTION TAKEN WHEN THE DTC SETS
A malfunction DTC is stored, ABS/TCS is disabled and the ABS and TRACTION CONTROL Indicator lamps are turned ON.

CONDITIONS FOR CLEARING THE DTC
Condition for DTC is no longer present and scan tool clear DTC function is used. Fifty start cycles have passed with no DTCs detected.

DIAGNOSTIC AIDS
When DTC C1255 is displayed on the scan tool, it will be followed by two more numbers which should be noted along with any other DTCs that may be displayed. The additional two numbers displayed with DTC C1255 are for aiding Engineering to determine the cause of the internal malfunction.

TEST DESCRIPTION
The numbers below refer to step numbers on the diagnostic table.
3. Checks for damage.