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.

The BCM detects an open/high resistance in the headlamp switch park lamps ON signal circuit.
The BCM detects a short to ground in the headlamp switch headlamps ON signal circuit.
The BCM detects a short to ground in the headlamp switch headlamps OFF signal circuit.