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Home >> Chevrolet >> 2012 >> Volt >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (Data Communications System) >> Diagnostic Information and Procedures >> DTC U0077 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2011 Chevrolet Volt. However, it is still accessible from the selected car via links, so may be relevant.

Diagnosis is accomplished using the symptom. Refer to Scan Tool Does Not Communicate with Chassis High Speed GMLAN Device .

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