Operation CHARM
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Chevrolet
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1983
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Impala V6-231 3.8L VIN A 2-bbl
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Repair and Diagnosis
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Relays and Modules
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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
Chart C-1 ECM Replacement Check - C3 System
Checking Control Module For Bad Solder Joints
Service and Repair
Computer Command Control (C-3) System
Electronic Control Module
Chart C-1 ECM Replacement Check
Electronic Control Module (ECM) Replacement
Diagrams
Technical Service Bulletins
