Circuit/System Verification
WARNING: This page is about a different car, the 2018 Buick Regal TourX and 2018 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON.
- With a scan tool check the Power Steering Control Module for any DTCs.
- If any DTCs are present in the Power Steering Control Module
Refer to Diagnostic Trouble Code (DTC) List - Vehicle in Power Steering Diagnostic Information and Procedures.
- Go to next step: If there are no DTCs present in the Power Steering Control Module
- With a scan tool check to see if DTCs U0126, U0130, or U0130 are set.
- If DTCs U0126, U0130, or U0131 are set
- Go to next step: If DTCs U0126, U0130, and U0130 are not set
- With a scan tool check to see if DTCs C0035 - C0050 are set in the Electronic Brake Control Module
- If DTCs C0035 - C0050 are set in the Electronic Brake Control Module
- Go to next step: If DTCs C0035 - C0050 are not set in the Electronic Brake Control Module
- If any DTCs are present in the Power Steering Control Module
- Perform the Steering Wheel Angle Sensor Centering procedure.
- If the Steering Angle Sensor Centering procedure corrected the DTC
Proceed to step 6
- Go to next step: If the Steering Angle Sensor Centering procedure did not correct the DTC
- If the Steering Angle Sensor Centering procedure corrected the DTC
- Replace the Steering Gear Assembly.
- If steering gear assembly replacement corrected the DTC
Proceed to step 6
- Go to next step: If steering gear assembly replacement did not correct the DTC
- If steering gear assembly replacement corrected the DTC
- Replace the Electronic Brake Control module.
- All OK.