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Home >> Chevrolet >> 2014 >> Tahoe SSV >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC U0077: Control Module Communication Bus "E" >> Circuit/System Description
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Circuit/System Description

The serial data circuits are serial data buses used to communicate information between the control modules. The serial data circuits also connect directly to the data link connector (DLC).