C1277

CIRCUIT DESCRIPTION
The Powertrain Control Module (PCM) monitors various parameters and will not allow Traction Control/Active Handling (if equipped with RPO JL4) operation if any parameter falls beyond a predetermined value.

CONDITIONS FOR SETTING THE DTC
A malfunction has been detected by the Powertrain Control Module (PCM). The PCM then causes TCS/Active Handling shutdown until the malfunction has been corrected.

ACTION TAKEN WHEN THE DTC SETS
This is a temporary operational malfunction.
TCS/Active Handling (if equipped with RPO JL4) are disabled.
^ Indicators that turn on:
- Car icon (TCS indicator)
^ Messages displayed on the Driver Information Center (DIC):
- Service Traction System
- Service Active HNDLG (if equipped with RPO JL4)

CONDITIONS FOR CLEARING THE DTC
^ Condition for Diagnostic Trouble Code (DTC) is no longer present and Scan tool clear DTC function is used.
^ Fifty ignition cycles have passed with no DTCs detected.

DIAGNOSTIC AIDS
This code is for information only. It indicates there are no problems in the ABS/TCS/Active Handling system, is used as an aid to the technician.

TEST DESCRIPTION
The numbers below refer to step numbers on the diagnostic table.
4. Checks for proper duty cycle.
5. Checks for proper frequency.

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Part 2 Of 2:

DTC C1277 REQUESTED TORQUE SIGNAL CIRCUIT MALFUNCTION