For 1990-2009 cars

The steering wheel position sensor does not require centering often. Centering of the steering position sensor might be required after certain service procedures are performed. Some of these procedures are as follows:

• | Steering gear replacement

• | Steering column replacement

• | Steering position sensor replacement

• | Intermediate shaft replacement

• | Antilock brake system (ABS) controller replacement

• | Collision or other physical damage

The steering position sensor centering procedure can be preformed with a scan tool in the automated center procedure by the following:

1. Road test the vehicle at a constant highway speed on a typical straight road. Verify the proper operating condition of the suspension or alignment, and the steering wheel is centered correctly. If the suspension or alignment repairs are required, then make the necessary repairs, and adjustments prior to the steering position sensor calibration. Refer to Symptoms - Suspension General Diagnosis .

Important: Before performing the calibration procedure, confirm that the steering wheel is centered, and the tires/wheels are in a straight ahead position.

2. Install the scan tool to the data link connector (DLC).
3. Set the transmission in the park position.
4. Turn ON the ignition, with the engine running.
5. Select Chassis/EBCM control system vehicle stability enhancement system (VSES), special function test, and Steering Position Sensor Calibration.
6. Follow the scan tool directions to complete the automated centering procedure this should include turning the steering wheel left 180 degrees and right 180 degrees, and then straight forward.
7. Clear any DTCs that may be set. Perform the Diagnostic System Check to verify no current DTCs. Refer to Diagnostic System Check - Vehicle .
8. Centering of the steering position sensor is complete.