Body Control System Schematics

WARNING: This page is about a different car, the 2004 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: BCM Power, Ground, and Serial Data Wiring Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 2: Lighting, Defogger, and Wipers References

Courtesy of GENERAL MOTORS CORP.

Fig 3: Controlled/Monitored Subsystem References Schematic

Courtesy of GENERAL MOTORS CORP.