Operation CHARM
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GMC Truck
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1998
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C 1500 Truck 2WD V8-5.7L VIN R
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Repair and Diagnosis
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Wiper and Washer Systems
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Testing and Inspection
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Initial Inspection and Diagnostic Overview
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Circuit Operation
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Rear
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Pulse Wiper/Washer
Pulse Wiper/Washer
Voltage to the Rear Wiper/Washer is supplied through the WHT (393) with the Ignition Switch in ACC or RUN.