Diagnostic Aids
- 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.