Conditions for Setting the DTC
WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
DTC B1277 01, B127C 01, B127D 01, B126F 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, B126F 02
- DTC B1325 is not current
- A short to ground is detected on the specified (+) or (-) signal circuit for more than 1.5 seconds
DTC B1277 04, B127C 04, B127D 04, B126F 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, B126F 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