Operation CHARM
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GMC Truck
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2012
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Savana 2500 V8-6.6L DSL Turbo
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Repair and Diagnosis
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Powertrain Management
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Relays and Modules - Powertrain Management
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Relays and Modules - Computers and Control Systems
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Engine Control Module
Engine Control Module
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Description and Operation
Testing and Inspection
Locations
Service and Repair
Diagrams
Engine Control Module (ECM) X1
Engine Control Module (ECM) X2
Engine Control Module (ECM) X3
Technical Service Bulletins
