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.Infotainment system ON.
- Verify DTC B19B1 is not set in the A11 Radio.
- If DTC B19B1 is set in the A11 Radio
Reprogram the radio refer to Control Module References
- Verify DTC B19B1 is not set in the A11 Radio.
- If DTC B19B1 is set in the A11 Radio
Replace the A11 Radio
- Go to next step: If DTC B19B1 is not set in the A11 Radio.
Go to next step: All OK
- If DTC B19B1 is set in the A11 Radio
- Go to next step: If DTC B19B1 is not set in the A11 Radio
- If DTC B19B1 is set in the A11 Radio
- All OK.