C1277

DTC C1277 Wiring Diagram:

DTC C1277:

CIRCUIT DESCRIPTION
The PCM provides the Electronic Brakes and Traction Control Module (EBTCM) with information on engine torque output via a high speed, pulse width modulated (PWM) signal on CKT 464.

The information enables the EBTCM to determine if engine torque management is required during a traction control event.

CONDITIONS FOR SETTING THE DTC
The DTC C1277 will set if the EBTCM determines that there is a signal/circuit malfunction in CKT 464.

ACTION TAKEN WHEN THE DTC SETS
The following actions are taken when the DTC sets:
^ A malfunction DTC is stored
^ The TCS is disabled
^ The TRACTION OFF indicator lamp is turned ON

CONDITIONS FOR CLEARING THE DTC
The DTC will clear under following conditions:
^ Conditions for the malfunction are no longer present. Use the Scan Tool Clear DTCs function.
^ 100 ignition switch key cycles have passed without detecting any malfunctions.

DIAGNOSTIC AIDS
Perform a thorough inspection of the wiring and the connectors. Failure to carefully inspect wiring may result in a misdiagnosis. A misdiagnosis may result in replacing parts without repairing the malfunction. Thoroughly inspect the following grounds:
^ G101
^ G102
^ G106
^ G110