HVAC Schematics

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Primary Blower Controls Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 2: A/C Compressor Controls Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 3: Primary Air Delivery Controls, HVAC Control Module Power, Ground & Serial Data Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 4: Primary Air Delivery Controls - Actuators Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 5: Primary Air Delivery Controls - Sensors Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 6: Auxiliary Blower Controls (w/o Sunroof) - Tahoe/Yukon Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 7: Auxiliary Blower Controls (w/o Sunroof) - Suburban/Yukon XL Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 8: Auxiliary Blower Controls (w/Sunroof) - (w/Heat or A/C Only) Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 9: Auxiliary Blower Controls (w/Sunroof) - (w/Heat and A/C) Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 10: Auxiliary Air Delivery Controls - Device Controls (w/o Sunroof) - Tahoe/Yukon Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 11: Auxiliary Air Delivery Controls - Sensors and Actuators (w/o Sunroof) - Tahoe/Yukon Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 12: Auxiliary Air Delivery Controls - Device Controls (w/o Sunroof) - Suburban/Yukon XL Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 13: Auxiliary Air Delivery Controls - Sensors and Actuators (w/o Sunroof) - Suburban/Yukon XL Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 14: Auxiliary Air Delivery Controls - Air Delivery and Temperature Controls (w/o Sunroof) Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 15: Manual Auxiliary Air Delivery Controls (w/Sunroof) and Automatic Primary Controls Schematic

Courtesy of GENERAL MOTORS CORP.