WARNING: This page is about a different car, the 2003 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Power Seats Schematics
Courtesy of GENERAL MOTORS CORP.
Fig 2: Heated Seats Schematics
Courtesy of GENERAL MOTORS CORP.
Fig 3: Memory Seats Schematics (MSM Power and Ground)
Courtesy of GENERAL MOTORS CORP.
Fig 4: Memory Seats Schematics (Memory Switch)
Courtesy of GENERAL MOTORS CORP.
Fig 5: Memory Seats Schematics (Position Sensors and Motors)