Circuit/System Verification
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
- Verify that DTC U0077 or U0126 is not set.
- If DTC U0077 or U0126 is set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Go to next step: If DTC U0077 or U0126 is not set
- If DTC U0077 or U0126 is set
- Verify the scan tool Steering Wheel Angle parameter value constantly changes from +550 to -550° as the steering wheel is turned through its entire range from left to right.
- If the parameter does not constantly change with the steering wheel position or the reading is erratic
Refer to Circuit/System Testing.
- Go to next step: If the parameter constantly changes with the steering wheel position
- If the parameter does not constantly change with the steering wheel position or the reading is erratic
- All OK.