Circuit/System Verification

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON.
Verify that no other DTCs are set except for C0544.
- If any other DTCs are set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If no other DTCs are set
With a scan tool, verify that the Steering Wheel Angle parameter is zero degrees or near zero degrees with the front tire/wheels in the straight ahead position.
- The Steering Wheel Angle parameter is not zero degrees or near zero degrees
  Perform the Power Steering Control Module Calibration. Refer to Power Steering Control Module Calibration
- Go to next step: The Steering Wheel Angle parameter is zero degrees or near zero degrees
Verify that DTC C0544 is not set.
- If the DTC is set
  Replace the K43 Power Steering Control Module.
- Go to next step: If the DTC is not set
All OK.