Conditions for Setting the DTC
WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
B1A2F 11
The BCM detects a short to ground on circuit 4786
B1A2F 12
The BCM detects a short to voltage on circuit 4786
B1A2F 13
The BCM detects an open/high resistance on circuit 4786