HVAC Schematics

WARNING: This page is about a different car, the 2008 Isuzu Ascender, 2008 GMC Envoy, and 2008 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Module Power, Ground, Serial Data & Blower Motor Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 2: Compressor Controls Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 3: Air Delivery/Temperature Actuators Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 4: Air Temperature Sensors Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 5: Ambient Light/Sunload Sensors Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 6: Rear Auxiliary Controls Schematic

Courtesy of GENERAL MOTORS CORP.