Operation CHARM
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GMC Truck
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1994
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C 2500 Truck 2WD V8-350 5.7L
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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
Diagnostic Circuit Check - ECM
Diagnostic Circuit Check - PCM
ECM QDR Check Procedure - Without 4L80-E
Locations
Service and Repair
Control Module Replacement
Vehicle Control Module (VCM) Replacement
Diagrams
C215 ECM
C215 PCM
C216 ECM
C218 PCM
Pinout and Terminal ID with PCM
With 4L60-E Automatic Transmission
With 4L80-E Automatic Transmission
with ECM
Pinout and Terminal ID with ECM
C215 ECM
C216 ECM
with PCM
C215 PCM
C218 PCM
Technical Service Bulletins
