WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Driver Seat (LHD -A45) Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 2: Driver Seat A45 Switches Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 3: Driver Seat A45 Motor Position Sensors Schematic