Operation CHARM
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GMC Truck
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1994
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K 1500 Truck 4WD V8-305 5.0L
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Repair and Diagnosis
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Lighting and Horns
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Description and Operation
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Exterior Lamps
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Underhood Reel Lamp
Underhood Reel Lamp
CIRCUIT OPERATION
Voltage is supplied at all times to the
Underhood Lamp
from the Battery Junction Block through an in-line fuse. When the switch is closed a ground path is provided.