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Home >> Buick >> 2011 >> Regal CXL >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Data Communications System >> Diagnostic Information and Procedures >> DTC U0020 >> Circuit/System Verification
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Circuit/System Verification

Diagnosis of this DTC is accomplished via the symptom or an additional DTC, Refer to Symptoms - Data Communications DTC U0100-U02FF .

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