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 B3881 01 and B3881 04
- The BCM detects a short to voltage or an open/high resistance in the left rear stop/turn signal lamp control circuit.
- The BCM detects a short to ground or an open/high resistance in the F7DA (BCM 3) fuse B+ circuit.
DTC B3881 02
The BCM detects a short to ground in the left rear stop/turn signal lamp control circuit.
DTC B3882 01 and B3882 04
- The BCM detects a short to voltage or an open/high resistance in the right rear stop/turn signal lamp control circuit.
- The BCM detects a short to ground or an open/high resistance in the F21DA (BCM 4) fuse B+ circuit.
- The BCM detects a short to ground or an open/high resistance in the F35DA (BATT 1) fuse B+ circuit.
DTC B3882 02
The BCM detects a short to ground in the right rear stop/turn signal lamp control circuit.