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Home >> Chevrolet >> 2011 >> Volt >> Repair and Diagnosis >> Engine Performance >> System >> Data Communications System >> Diagnostic Information and Procedures >> DTC U0078 >> Circuit/System Description

Circuit/System Description

The low speed GMLAN serial data bus is used to communicate information between the control modules. The serial data is transmitted over a single wire to the appropriate control modules. The low speed GMLAN serial data circuits also connect directly to the data link connector (DLC).

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