Body Control System Description and Operation: Notes
WARNING: This page is about a different car, the 2004 Pontiac Sunfire and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
The body control system consists of a body control module (BCM) and its associated controls. Battery positive voltage is provided to the BCM from CLSTR fuse in the Fuse Block-left I/P. The module ground is wired to ground G201. The BCM is wired to the class 2 serial data communication bus as well as discreet input and output terminals to control the functions of the vehicles body.