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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Data Link Communications System >> Diagnostic Information and Procedures >> DTC U1000 and U1255: Critical Operating Parameter Has Not Been Associated >> Conditions for Setting the DTC

Conditions for Setting the DTC

At least one critical operating parameter has not been associated with an identification number within about 5 seconds after beginning serial data communication.

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