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GMC Truck
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1997
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G 3500 1 Ton Van V8-5.7L VIN R
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Repair and Diagnosis
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Heating and Air Conditioning
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Control Assembly
Control Assembly
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Description and Operation
Base Heater System
Auxiliary Heater System
With A/C
Locations
Auxiliary Heater Control Switch
Auxiliary HVAC Control Module, Front & Rear
Heater and A/C Controller
Primary Heating System
Service and Repair
Driver Auxiliary Heater Control Switch
Heater Control Assembly
Passengers Auxiliary Heater Control Switch
Diagrams
Auxiliary HVAC Control Module Connector
Front
Cargo
Passenger
Rear
Heater and A/C Control Logic Module Connector
Heater and A/C Controller
C1
C2
C3
Specifications
Technical Service Bulletins
