WARNING: This page is about a different car, the 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Body Control Module (BCM) C1 Connector End View
Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying Body Control Module (BCM) C2 Connector End View (1 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 3: Identifying Body Control Module (BCM) C2 Connector End View (2 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 4: Identifying Body Control Module (BCM) C3 Connector End View