Circuit/System Verification
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, radio ON.
- Verify DTC B1271 is not set.
- If DTC B1271 is set
Replace the A11 radio.
- If DTC B1271 is not set
- If DTC B1271 is set
- All OK.