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.
- Verify DTC B2B15 is not set.
- If DTC B2B15 is set
Replace the K73 Telematic Control Module.
- Go to next step: If DTC B2B15 is not set
- If DTC B2B15 is set
- All OK.