Circuit/System Description
WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
The K9 Body Control Module provides the control circuit 2683, control circuit 2684, control circuit 2685, control circuit 2686 and control circuit 2688 with voltage and ground to the appropriate lock and unlock control circuits of the door latches. The lock and unlock control circuits of the left rear and driver door latches are connected together, the lock and unlock control circuits of the right rear and passenger door latches are connected together. Transitioning of the lock actuators to the lock or unlocked position depends upon which control circuits receive voltage and which control circuits receive ground.