HVAC Schematics

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Module Power, Ground, Serial Data, and Front Blower Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 2: Front Mode Controls Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 3: Front Temperature Controls Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 4: Auxiliary Blower Controls Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 5: Auxiliary Temperature Controls Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 6: A/C Compressor Controls Schematic

Courtesy of GENERAL MOTORS CORP.