Diagnostic Aids

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Diagnosis of this DTC is accomplished via the symptom, DTC U0100-U02FF (without HP2) , DTC U0100-U02FF (with HP2) .
An intermittent condition is likely to be caused by a short on the GMLAN serial data circuits. Use the DTC U0100-U02FF (without HP2) , DTC U0100-U02FF (with HP2) procedure in order to isolate an intermittent condition.