Fault Codes/Winco/SPN 652 FMI 6WincoSPN 652 FMI 6WarningGeneralWhat This Code MeansFailure is detected; System triggers appropriate substitute reactionPossible Causes•Hardware errors in the injectors•Hardware errors in respective ECM power stages•Overcurrent•Command collision•RAM error•Short circuitSuggested Actions1Diagnostic procedure uses pattern detection to identify specific errors and trigger appropriate substitute reactionRelated Winco Fault CodesSPN 653 FMI 5SPN 652 FMI 5LOW OIL PRESSURELOW OIL LEVELFAIL TO STOPFAIL TO STARTENGINE HIGH OIL TEMPERATUREE87-10E87-0DB7-2DB6-23719 16Browse all Winco fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for SPN 652 FMI 6 on your specific Winco unit — cited to the OEM manual, not a forum guess.TRY IT FREE