Operation CHARM
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GMC Truck
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2004
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Sonoma 4WD V6-4.3L VIN X
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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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Engine Control Module
Engine Control Module
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Description and Operation
Powertrain Control Module (PCM)
Distributor Ignition (DI) System
Locations
Service and Repair
Diagrams
Powertrain Control Module (PCM) Connector C1
Powertrain Control Module (PCM) Connector C2
Technical Service Bulletins
