Fault Codes/Cummins/2731Cummins2731UnclassifiedGeneralWhat This Code MeansGenset shutdownPossible Causes•Data link between the I/O module and the PCC control is lostRelated Cummins Fault Codes281628842729288826962891267828932677289626762897Browse all Cummins fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for 2731 on your specific Cummins unit — cited to the OEM manual, not a forum guess.Your question about 2731GET THE ANSWERFree account required — we'll bring your question with you.