Operation CHARM
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GMC Truck
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1994
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G 1500 1/2 Ton Van V8-305 5.0L
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Repair and Diagnosis
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Lighting and Horns
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Headlamp
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Testing and Inspection
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Component Tests and General Diagnostics
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Without Daytime Running Lamps (DRL)
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Preliminary Checks
Preliminary Checks
Before checking the system do the following:
1.
Verify condition of STOP-HZ fuse. If blown, locate and repair source of overload. Then replace fuse.