Conditions for Setting the DTC
WARNING: This page is about a different car, the 2017 Chevrolet Spark. 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.