Fault Codes/Power Solutions International/122Power Solutions International122UnclassifiedGeneralWhat This Code MeansMIL ON during active fault; Engine Shutdown; Engine shutdownPossible Causes•TPS1 voltage is greater than 4.8V or less than 0.2V AND TPS2 voltage is greater than 4.8V or less than 0.2V•Simultaneous voltage out-of-range faults for both TPS1 and TPS2•Throttle Position Sensor (TPS) failure•TPS 1 voltage is less than 0.200 voltsSuggested Actions1Replace the electronic throttle assembly2Troubleshoot according to TPS1 voltage out-of-range following DTC 122 and 123 procedures3Troubleshoot according to TPS2 voltage out-of-range following DTC 222 and 223 proceduresRelated Power Solutions International Fault Codes123161 4121222117 4223111:0302 4108302 9102 C326Browse all Power Solutions International fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for 122 on your specific Power Solutions International unit — cited to the OEM manual, not a forum guess.TRY IT FREE