C1287

DTC C1287: Steering Sensor Rate Malfunction (Part 1 Of 2):

DTC C1287: Steering Sensor Rate Malfunction (Part 2 Of 2):

DTC C1287 Schematic:

CIRCUIT DESCRIPTION
The steering wheel center position is re-learned by the EBTCM in every drive cycle. Once it has been established, the center position for the steering wheel should remain fairly constant.

CONDITION FOR SETTING THE DTC
This code is most likely to be set by an intermittent malfunction. DTC C1287 can be set any time ignition is present. A fault exists if 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, ABS and TCS remain enabled, Stabilitrak is disabled and the STABILITY REDUCED message will be displayed on the DIC.

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
It is important to find out from the driver when the code was set, (when the STABILITY REDUCED message was activated) and what was he doing at the time. This information will help to duplicate the failure.
-It is very important that a thorough inspection of the wiring and connectors be performed. Failure to carefully and fully inspect wiring and connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction. An intermittent malfunction is most likely caused by a poor connection, rubbed through wire insulation, or a wire that is broken inside the insulation.

TEST DESCRIPTION
The numbers below refer to step numbers on the diagnostic table.
4. Check the Steering Wheel Position Sensor.
5. Check the Steering Wheel Position Sensor.
6. Check the Steering Wheel Position Sensor.