Fault Codes/Power Solutions International/DTC 1025Power Solutions InternationalDTC 1025UnclassifiedGeneralWhat This Code MeansMalfunction Indicator Light (MIL) ON during active fault; Engine shutdownPossible Causes•MFG fluid temperature sensor output voltage is lower than the internally-defined low voltage limitSuggested Actions1Replace MFG with known good unit and retestRelated Power Solutions International Fault CodesDTC 1026DTC 1028DTC 1022DTC 1173DTC 685DTC 1552DTC 606DTC 1612DTC 563DTC 1613DTC 522DTC 1614Browse all Power Solutions International fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for DTC 1025 on your specific Power Solutions International unit — cited to the OEM manual, not a forum guess.TRY IT FREE