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Home >> GMC >> 2012 >> Cutaway 6.6L Eng VIN L >> Repair and Diagnosis >> External Pages >> Different car >> Section 320 (Data Communication System) >> Diagnostic Information And Procedures >> DTC U0020 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 GMC Savana, 2013 GMC RV Cutaway, 2013 GMC Cutaway, 2013 Chevrolet RV Cutaway, and 2013 Chevrolet Express. However, it is still accessible from the selected car via links, so may be relevant.

Diagnosis of this DTC is accomplished via the symptom, DTC U0100-U02FF (except U029D and U029E) , DTC U0100-U02FF (U029D and U029E only) .

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