2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 374Get this manual
ELECTRICAL EFI Diagnostic Mode
NOTE: The EFI diagnostic mode is intended to quickly view fault codes stored in the EFI unitPolaris dealers are equipped with the proper diagnostic tools to further diagnose the blink codesTo recall blink codes (fail codes) from the ECU: 1Verify the ATV key switch is off and the transmission is in park2Turn the key switch ON and OFF times within seconds and leave the key switch in the ON position on the third turn4The word "End" will display after all of the codes have been displayed