WARNING: This page is about a different car, the 2003 Pontiac Grand Am and 2003 Oldsmobile Alero. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Body Control Module (BCM), C1 Connector
Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying Body Control Module (BCM), C2 Connector (1 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 3: Identifying Body Control Module (BCM), C2 Connector (2 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 4: Identifying Body Control Module (BCM), C3 Connector