2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 175Get this manual
500 EFI FUEL SYSTEM 6If the update file date listed is newer than your current version and update (see "Digital WrenchTM Version and Update ID"), download the file
Digital WrenchTM Serial Number Location
Open the configuration screen by clicking on the wrench iconThe serial number is located on the right side of the screen
7Click on the link shown above, save the file to your hard disk and then double-click the icon to start the update processNOTE: Do not "run" or "open" the file from where they areSelect "save" and download them to your PC before running the install8When the update is complete, the version shown on the right side of the Digital WrenchTM start-up screen should match the update you just downloaded