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GMC Truck
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2011
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Sierra 3500 4WD V8-6.6L DSL Turbo
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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Diagnostic Trouble Code Descriptions
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Control Module U Code List
Control Module U Code List
Control Module U Code List
This list includes all Data Communications related U-code DTCs in alphanumeric order with descriptors for all modules. Not all DTCs listed will be applicable to all vehicles.