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Home >> Cadillac >> 2014 >> XTS Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 53 (Data Communication System) >> Diagnostic Information and Procedures >> DTC U0020 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2013 Cadillac XTS. However, it is still accessible from the selected car via links, so may be relevant.

Diagnosis of this DTC is accomplished via the symptom or an additional DTC. Refer to Scan Tool Does Not Communicate with Low Speed GMLAN Device , or Diagnostic Trouble Code (DTC) List - Vehicle .

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