BCM Scan Tool Data Definitions
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
The body control module (BCM) Scan Tool Data Definitions contains a brief description of all Lighting System related BCM parameters available on the scan tool.