WARNING: This page is about a different car, the 2002 Pontiac Montana, 2002 Oldsmobile Silhouette, and 2002 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: HVAC Schematics (Front Blower Controls)
Courtesy of GENERAL MOTORS CORP.
Fig 2: HVAC Schematics (HVAC Compressor Control)
Courtesy of GENERAL MOTORS CORP.
Fig 3: HVAC Schematics (Front Air Delivery)
Courtesy of GENERAL MOTORS CORP.
Fig 4: HVAC Schematics (Rear Blower Controls)
Courtesy of GENERAL MOTORS CORP.
Fig 5: HVAC Schematics (Rear Blower Controls with Video Entertainment)
Courtesy of GENERAL MOTORS CORP.
Fig 6: HVAC Schematics (Rear Air Delivery)
Courtesy of GENERAL MOTORS CORP.
Fig 7: HVAC Schematics (Rear Air Delivery Controls with Video Entertainment)