C1287

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Part 2 Of 2:

CIRCUIT DESCRIPTION
The EBTCM learns the steering wheel center position in every drive cycle. Once established, the steering wheel center position should remain fairly constant.

CONDITIONS FOR SETTING THE DTC
All of the following conditions occur:
^ The ignition is ON.
^ The steer rate (speed that the steering wheel appears to be turning) exceeds the limits set by the EBTCM.

ACTION TAKEN WHEN THE DTC SETS
^ A malfunction DTC is stored.
^ Stabilitrak is disabled.
^ The DIC displays the SERVICE STABILITY SYS message.
^ The ABS/TCS remain functional.

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
^ Check the vehicle for proper alignment. The car should not pull in either direction while driving straight on a flat surface.
^ Find out from the driver under what conditions the DTC was set (when the DIC displayed the SERVICE STABILITY SYS message). This information will help to duplicate the failure.
^ Thoroughly inspect the wiring and the connectors. An incomplete inspection of the wiring and the connectors may result in a misdiagnosis, causing a part replacement with the reappearance of the malfunction.
^ Poor connections, broken insulation, or a break in the wire inside the insulation may cause an intermittent malfunction.
^ If an intermittent malfunction exists, refer to Intermittents and Poor Connections Diagnosis in Wiring Systems.
^ The Snapshot function on the scan tool can help find an intermittent DTC.