Diagnostic Aids

WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. 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 Class 2 Device .
An intermittent condition is likely to be caused by a short on the class 2 serial data circuit.