Fault Codes/Power Solutions International, Inc./DTC 15 74Power Solutions International, Inc.DTC 15 74UnclassifiedGeneralWhat This Code MeansMalfunction Indicator Lamp (MIL) ON during active fault; Engine shutdownPossible Causes•Voltage feedback from the sensor is above the limit defined in calibrationRelated Power Solutions International, Inc. Fault CodesDTC 89 20DTC 108DTC 2 34DTC 121DTC - 520DTC 123DTC - 359DTC 127DTC - 16DTC 129520240:3DTC 148Browse all Power Solutions International, Inc. fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for DTC 15 74 on your specific Power Solutions International, Inc. unit — cited to the OEM manual, not a forum guess.TRY IT FREE