Operation CHARM
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GMC Truck
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2001
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Safari Van 2WD V6-4.3L VIN W
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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 System - Manual Control
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Air Delivery
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Air Speed - Auxiliary Control
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Off Mode
Off Mode
When the OFF temperature setting is selected, the switch creates an open circuit within the auxiliary blower motor switch. This prevents any output being provided by the switch.