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 B3948 01 and B3948 04
- The BCM detects an open/high resistance in the left front turn signal control circuit.
- The BCM detects an open/high resistance in the left front turn signal ground circuit.
- The BCM detects a short to ground or an open/high resistance in the F7DA (BCM 7) fuse B+ circuit.
DTC B3948 02
The BCM detects a short to ground in the left front turn signal control circuit.
DTC B3949 01 and B3949 04
- The BCM detects an open/high resistance in the right front turn signal control circuit.
- The BCM detects an open/high resistance in the right front turn signal ground circuit.
- The BCM detects a short to ground or an open/high resistance in the F5DA (BCM 5) fuse B+ circuit.
DTC B3949 02
The BCM detects a short to ground in the right front turn signal control circuit.