Conditions for Setting the DTC
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
DTC B1277 01, B127C 01, B127D 01
- DTC B1325 is not current
- A short to voltage is detected on the specified (+) or (-) signal circuit for more than 1.5 seconds
DTC B1277 02, B127C 02, B127D 02
- DTC B1325 is not current
- A short to voltage is detected on the specified (+) or (-) signal circuit for more than 1.5 seconds
DTC B1277 04, B127C 04, B127D 04
- DTC B1325 is not current
- An open is detected on the specified (+) or (-) signal circuit for more than 1.5 seconds
DTC B1277 1A, B127C 1A, B127D 1A
- DTC B1325 is not current
- An out of range voltage is detected on the specified (+) or (-) signal circuit for more than 1.5 seconds