Circuit/System Verification
WARNING: This page is about a different car, the 2020 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition On/Vehicle in Service Mode. Control Module ON.
- Verify DTC B1B19 is not set in Control Module.
- If DTC B1B19 is set in Control Module
Replace the Control Module.
- Go to next step: If DTC B1B19 is not set in Control Module
- If DTC B1B19 is set in Control Module
- All OK.