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Home › Chevrolet › 2017 › Express 2500 LS, 2.8L Eng VIN 1 › Repair and Diagnosis › Engine Performance › System › Data Communication System › Diagnostic Information and Procedures › DTC U0074: Control Module Powertrain Expansion Communication Bus Off › DTC Descriptor

DTC Descriptor

DTC U0074 00: Control Module Powertrain Expansion Communication Bus Off