Fault Codes/Cummins/2263Cummins2263UnclassifiedCoolingWhat This Code MeansHigh battery temperature; Battery temperature is above 55 °CPossible Causes•Battery's ambient temperature is too high•Possible shorted cells within the batterySuggested Actions1Move the battery into a cooler location (charger will automatically resume charging after battery temperature lowers)2Replace the batteryRelated Cummins Fault Codes2416C10001667C11001435C12501433C13001335C14001317C1500Browse all Cummins fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for 2263 on your specific Cummins unit — cited to the OEM manual, not a forum guess.Your question about 2263GET THE ANSWERFree account required — we'll bring your question with you.