Operation CHARM
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GMC Truck
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1983
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K 1500 1/2 Ton Pickup 4WD L6-250 4.1L VIN D 2-bbl
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Relays and Modules - Computers and Control Systems
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Engine Control Module
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Service and Repair
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Engine Compartment Reference Diagrams
Engine Compartment Reference Diagrams
Fig. 74 Electronic Control Module W/C-3 system: