WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Ambient Air Temperature Sensor Harness Connector Terminals
Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying Left Temperature Actuator Harness Connector Terminals
Courtesy of GENERAL MOTORS CORP.
Fig 3: Identifying Right Temperature Actuator Harness Connector Terminals
Courtesy of GENERAL MOTORS CORP.
Fig 4: Identifying Inside Air Temperature Sensor Harness Connector Terminals
Courtesy of GENERAL MOTORS CORP.
Fig 5: Identifying Blower Motor Control Processor Harness Connector Terminals
Courtesy of GENERAL MOTORS CORP.
Fig 6: Identifying HVAC Control Module Harness Connector Terminals