Circuit Description
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
The body control module (BCM) door locks ground circuit 550 provides ground for the door lock and unlock relays in the BCM that control the door lock actuators. If the BCM detects an open in this circuit, DTC B1349 is set.