WARNING: This page is about a different car, the 2002 Cadillac Seville. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Door Control Module Schematics (DDM Power, Grounds, Inputs & Outputs)
Courtesy of GENERAL MOTORS CORP.
Fig 2: Door Control Module Schematics (DDM Inputs, Outputs & Class 2)
Courtesy of GENERAL MOTORS CORP.
Fig 3: Door Control Module Schematics (FPDM Power, Grounds, Inputs & Outputs)
Courtesy of GENERAL MOTORS CORP.
Fig 4: Door Control Module Schematics (FPDM Inputs, Outputs & Class 2)
Courtesy of GENERAL MOTORS CORP.
Fig 5: Door Control Module Schematics (LRDM Power, Ground, Inputs, Outputs & Class 2)
Courtesy of GENERAL MOTORS CORP.
Fig 6: Door Control Module Schematics (RRDM Power, Ground Inputs, Outputs & Class 2)
Courtesy of GENERAL MOTORS CORP.
Fig 7: Door Control Module Schematics (Power Door Serial Data)