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Home >> GMC >> 2021 >> Canyon AT4, 2.8L Eng VIN 1 >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System - Data Link Communication And Procedures (1 Of 2) >> Diagnostic Information and Procedures >> DTC U0077 >> DTC Descriptor

DTC Descriptor

DTC U0077: Control Module Communication Chassis Expansion CAN Bus Off

For symptom byte information, refer to Symptom Byte List .

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