Diagnostic Aids

WARNING: This page is about a different car, the 2009 Saturn Outlook, 2009 GMC Acadia, 2009 Chevrolet Traverse, and 2009 Buick Enclave. 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-U0299 .
An intermittent condition is likely to be caused by a short on the GMLAN serial data circuits. Use the DTC U0100-U0299 procedure in order to isolate an intermittent condition.