Fault Codes/Cummins/3539Cummins3539UnclassifiedAir IntakeWhat This Code MeansWarning lamp active; Displayed message: AIR THROT POSN SENSOR OORHPossible Causes•Engine Intake Throttle Actuator Position Sensor Circuit - Voltage Above Normal or Shorted to High Source•The engine controller has sensed a fault condition and is broadcasting the fault messageSuggested Actions1Consult Engine Service ManualRelated Cummins Fault Codes3541354217717617531315134297751862964Browse all Cummins fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for 3539 on your specific Cummins unit — cited to the OEM manual, not a forum guess.Your question about 3539GET THE ANSWERFree account required — we'll bring your question with you.