Operation CHARM
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GMC Truck
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2004
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Canyon 4WD L5-3.5L VIN 6
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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)
Electronic Ignition (EI) System
Antitheft Function
Locations
Service and Repair
Diagrams
Powertrain Control Module (PCM) C1
Powertrain Control Module (PCM) C2
Powertrain Control Module (PCM) C3
Technical Service Bulletins
