WARNING: This page is about a different car, the 2002 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Left Air Temperature Actuator Harness Connector Terminals
Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying Right Air Temperature Actuator Harness Connector Terminals
Courtesy of GENERAL MOTORS CORP.
Fig 3: Identifying Blower Motor (Main) Harness Connector Terminals
Courtesy of GENERAL MOTORS CORP.
Fig 4: Identifying Blower Motor Resistor (Auxiliary) Harness Connector Terminals
Courtesy of GENERAL MOTORS CORP.
Fig 5: Identifying Blower Motor Switch (Auxiliary) Harness Connector Terminals
Courtesy of GENERAL MOTORS CORP.
Fig 6: Identifying HVAC Control Module Harness Connector Terminals
Courtesy of GENERAL MOTORS CORP.
Fig 7: Identifying HVAC Control Processor C1 Harness Connector Terminals
Courtesy of GENERAL MOTORS CORP.
Fig 8: Identifying HVAC Control Processor C2 Harness Connector Terminals