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.
- An intermittent condition is likely to be caused by a short on the high speed GMLAN serial data circuits.
- This DTC cannot be retrieved with a current status. Diagnosis is accomplished using the symptom Scan Tool Does Not Communicate with High Speed GMLAN Device .
- Refer to Data Link References for the specific modules using high speed GMLAN serial data.