WARNING: This page is about a different car, the 2009 GMC Envoy and 2009 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: BCM Module Power, Ground, and Controlled/Monitored Subsystem References - 1 of 4
Courtesy of GENERAL MOTORS CORP.
Fig 2: BCM Controlled/Monitored Subsystem References - 2 of 4
Courtesy of GENERAL MOTORS CORP.
Fig 3: BCM Controlled/Monitored Subsystem References - 3 of 4
Courtesy of GENERAL MOTORS CORP.
Fig 4: BCM Controlled/Monitored Subsystem References - 4 of 4