HVAC Wiring Schematics

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Power, Ground, Serial Data, Blower Motor, and Coolant Bypass Valve Wiring Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 2: A/C Compressor Controls and Pressure Sensors Wiring Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 3: Actuators Wiring Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 4: Air Temperature Sensors Wiring Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 5: Ambient Light/Solar Sensor Wiring Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 6: Rear Mode Control and Blower - Body Type VIN 3 Wiring Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 7: Auxiliary HVAC Controls - Body Type VIN 6 Wiring Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 8: Steering Wheel Controls Wiring Schematic

Courtesy of GENERAL MOTORS CORP.