Diagnostic Aids

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

This DTC cannot be retrieved with a current status. Diagnosis of a current DTC is accomplished via the symptom, Scan Tool Does Not Communicate with High Speed GMLAN Device , or Scan Tool Does Not Communicate with Low Speed GMLAN Device depending on the module serial data communication.
An intermittent condition is likely to be caused by a short on the GMLAN serial data circuits. Use the Scan Tool Does Not Communicate with High Speed GMLAN Device , or Scan Tool Does Not Communicate with Low Speed GMLAN Device procedure in order to isolate an intermittent condition.