Operation CHARM
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GMC Truck
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2004
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Yukon/Denali 4WD V8-5.3L VIN Z Flex Fuel
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Repair and Diagnosis
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Lighting and Horns
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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Backup Lamps Inoperative
Backup Lamps Inoperative
Steps 1-10:
