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Home >> Buick >> 2014 >> Regal GS, FWD, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC U0074 (Mid Speed GMLAN) >> DTC Descriptor

DTC Descriptor

DTC U0074: Control Module Communication Bus B Off

For symptom byte information, refer to Symptom Byte List .

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