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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 323 (Data Communication System - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC U0073 or U2100: Control Module Communication Bus A Off/CAN Bus Communication >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.

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

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