WARNING: This page is about a different car, the 2003 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Body Control System Wiring Schematic - DIM Power & Grounds
Courtesy of GENERAL MOTORS CORP.
Fig 2: Body Control System Wiring Schematic - DIM Ignition Inputs
Courtesy of GENERAL MOTORS CORP.
Fig 3: Body Control System Wiring Schematic - DIM Input/Output (1 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 4: Body Control System Wiring Schematic - DIM Input/Output (2 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 5: Body Control System Wiring Schematic - IPM Power & Grounds
Courtesy of GENERAL MOTORS CORP.
Fig 6: Body Control System Wiring Schematic - IPM Input/Output (1 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 7: Body Control System Wiring Schematic - IPM Input/Output (2 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 8: Body Control System Wiring Schematic - RIM Power & Grounds
Courtesy of GENERAL MOTORS CORP.
Fig 9: Body Control System Wiring Schematic - RIM Input/Output (1 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 10: Body Control System Wiring Schematic - RIM Input/Output (2 Of 2)