Power Steering Control Module Replacement
NOTE:
During the procedures listed below, critical data is retrieved from vehicle components and stored in the scan tool computer's hard drive. This data is needed during the programming and setup sequences.
Ensure the same scan tool is used and capable of reading, storing, and writing the vehicle's system data.
- Connect a scan tool to the vehicle and access SPS. Refer to Service Programming System (SPS) .
- Perform the SPS function Electronic Power Steering - Prepare Control Module for Removal and follow the on-screen instructions.
- Replace the Power Steering Assist Motor containing the Power Steering Control Module. Refer to Power Steering Assist Motor Replacement .
- With the Power Steering Assist Motor replaced and reconnected, using the same scan tool, perform the SPS function Electronic Power Steering - Programming and follow the on-screen instructions.
- Perform the SPS function Electronic Power Steering - Setup and follow the on-screen instructions.
- Perform the Steering Angle Sensor Centering and Software Endstop Learning procedure. Refer to Power Steering Control Module Calibration .
- Clear DTCs after completing the programming and setup procedures.
NOTE:
Step 2 copies the worm gear wear counter data from the power steering control module PRIOR to the module's removal and stores it on the scan tool computer's hard drive.
AFTER completing step 2, the power steering control module can now be removed and replaced.
NOTE:
The next two steps will transfer the vehicle's critical data, including the worm gear wear counter data saved in step 2, back to the vehicle components.