If you have any mechanical aptitude at all, go to the hardware store and buy some wire it back the way it is supposed to be. You really don't fk with that stuff when your ride has a engine computer.
And wtf kind of ATV needs a check engine light / engine computer / safe (putt-putt) mode? That is just lame and takes all the fun out of ATVing. Just bypass all that crap and run it old school!