Circuit/System Verification
WARNING: This page is about a different car, the 2016 Cadillac CTS. 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 B1271 is not set in Control Module.
- If DTC B1271 is set in Control Module
Replace the Control Module.
- If DTC B1271 is not set in Control Module
- If DTC B1271 is set in Control Module
- All OK.