Diagnostic Aids

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These DTCs cannot be retrieved with a current status. Diagnosis of current DTCs is accomplished via the symptom. Refer to Scan Tool Does Not Communicate with Class 2 Device .
An intermittent condition is likely to be caused by a short or an open on the class 2 serial data circuit. Use the Scan Tool Does Not Communicate with Class 2 Device procedure in order to isolate an intermittent condition.