Circuit/System Verification
- Vehicle On - Service Mode
- Verify DTC U2BFC is not set.
- If the DTC is set
Maintain post-crash 50-foot vehicle isolation and contact GM Technical Assistance before attempting any further inspection, operation or interaction with the vehicle.
- Go to next step: If the DTC is not set
- If the DTC is set
- Verify no other DTCs are set.
- If any other DTCs are set
Refer to: Diagnostic Trouble Code (DTC) List - Vehicle .
- Go to next step: If no other DTCs are set
Go to next step: Refer to: Circuit/System Testing
- If any other DTCs are set