Circuit/System Verification
WARNING: This page is about a different car, the 2016 Cadillac CT6. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition On/Vehicle in Service Mode.
- Verify no other DTCs are present.
- If any other DTCs are present
Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If no other DTCs are present
- If any other DTCs are present
- Verify DTC B123A or B123B is not current.
- If DTC B123A or B123B is current.
Refer to Circuit/System Testing B123A or B123B.
- If DTC B123A or B123B is not current
- If DTC B123A or B123B is current.
- Verify DTC B123C is not current.
- If DTC B123C is current.
Refer to Circuit/System Testing B123C
- If DTC B123C is not current.
- If DTC B123C is current.
- All OK.