Diesel Data
: Automotive Repair
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Chevy Truck
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2001
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Express 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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Description and Operation
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HVAC Systems - Manual
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Air Delivery Description and Operation
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Air Speed - Auxiliary Heater Without A/C
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Off Mode
Off Mode
When the OFF blower setting is selected, the switch creates an open circuit within the auxiliary blower motor switch. This prevents any output being provided by the switch.