Diagnostic Aids

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

These DTCs cannot be retrieved with a current status. Diagnosis of current DTCs is accomplished via the symptom Scan Tool Does Not Communicate with High Speed GMLAN Device .
An intermittent condition is likely to be caused by a short on the class 2 serial data circuit.