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Home >> GMC >> 2013 >> Sierra 1500 Denali, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 2558 (Data Communication System) >> Diagnostic Information and Procedures >> DTC U0073 or U2100: Control Module Communication Bus A/CAN Bus >> DTC Descriptors

DTC Descriptors

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 GMC Sierra 3500 HD, 2015 GMC Sierra 2500 HD, 2015 GMC Sierra 1500, 2015 Chevrolet Silverado 3500 HD, and 2015 Chevrolet Silverado 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
DTC U0073

Control Module Communication Bus A Off

DTC U2100

CAN Bus Communication

For symptom byte information, refer to Symptom Byte List .

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