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Home >> GMC >> 2009 >> Envoy 4.2 S, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC U1000 and U1255 >> DTC Descriptors

DTC Descriptors

DTC U1000: Class 2 Data Link
DTC U1255: Loss of Class 2 Communication

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