Conditions for Setting the DTC

WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. 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 stop lamp control circuit.
The BCM detects a short to ground or an open/high resistance in the F5DA (BCM 5) fuse B+ circuit.

DTC B3881 02

The BCM detects a short to ground in the left stop lamp control circuit.

DTC B3882 01 and B3882 04

The BCM detects a short to voltage or an open/high resistance in the right stop lamp control circuit.

DTC B3882 02

The BCM detects a short to ground in the right stop lamp control circuit.