Power Steering Control Module Programming and Setup

Power Steering Control Module Programming and Setup

Power Steering Control Module (PSCM) Replacement & Setup

Important: The power steering control module is serviced separately from the steering column assembly.

If the power steering control module (PSCM) is replaced, the following procedures must be performed in the following order:

1. PSCM reprogramming. Refer to Service Programming System (SPS). Programming and Relearning
2. Steering Position/Torque Sensor Calibration.

Power Steering Motor or Torque Sensor Replacement

Important: The power steering control module is serviced separately from the steering column assembly. However, the torque sensor is serviced as part of the steering column assembly.

After replacing either the steering column assembly or the power steering motor only the Steering Position/Torque Sensor Calibration procedure must be performed. Certain steering symptoms can be corrected by performing the Steering Position/Torque Sensor Calibration procedure such as:

* Poor, or uneven return to center
* Poor, or uneven on center feel

Steering Position/Torque Sensor Calibration

1. Install a scan tool.
2. Turn ON the ignition, with the engine ON.
3. Select Special Functions on the scan tool.
4. Select Steering Position/Torque Sensor Calibration and press the Enter key.

Important: If the scan tool displays "Procedure is not required", the calibration procedure has already been completed.

5. Center the steering wheel.
6. Turn OFF the ignition and then ON again, with the engine ON.
7. Turn the steering wheel 180 degrees the left and then 180 degrees to the right.

Important: After centering the steering wheel, remove hands and other objects from the steering wheel and ensure the suspension is relaxed and that no bias, or uneven force is being applied to the steering system.

8. Center the steering wheel.
9. Wait until the scan tool displays "Calibration Complete". If the scan tool displays "Procedure Failed", repeat the calibration procedure.
10. Press the Exit key.
11. Clear any PSCM DTCs with the scan tool.

Important: Do not disconnect the battery for at least 25 seconds after turning the ignition OFF, or module memory loss may occur.

12. Turn the ignition OFF.