Operation CHARM
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GMC Truck
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1998
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Yukon 4WD V8-5.7L VIN R
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Repair and Diagnosis
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Wiper and Washer Systems
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Description and Operation
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Rear Wiper/Washer System
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Circuit Operation
Circuit Operation
Voltage to the Rear Wiper/Washer is supplied through the WHT (393) with the Ignition Switch in ACC or RUN.