WARNING: This page is about a different car, the 2008 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Garage Door Opener Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 2: Remote Control Door Lock Receiver (RCDLR) Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 3: Door Latch Assemblies & Hood Ajar Switch Schematic