Operation CHARM
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Chevy Truck
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1992
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G 20 Van V8-350 5.7L
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Repair and Diagnosis
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Lighting and Horns
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Backup Lamp
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Description and Operation
Backup Lamp: Description and Operation
With the Ignition Switch in ACC or RUN, voltage is supplied through the TURN/BU Fuse to the
Backup Lamps
Switch. Whenever the gear selector lever is shifted to REVERSE the Backup Lamps and lamps turn on.