Fault Codes/Cummins/249Cummins249UnclassifiedCoolingWhat This Code MeansINTAKE MANIFOLD TEMP OOR warning displayedPossible Causes•Engine intake manifold temperature sensor output is out of range (OOR), high or lowRelated Cummins Fault Codes343353248415243488242122224113122401317Browse all Cummins fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for 249 on your specific Cummins unit — cited to the OEM manual, not a forum guess.Your question about 249GET THE ANSWERFree account required — we'll bring your question with you.