Did you plea down? if not, and you still have the ticket or the court notice, if one was sent, look on it for the exact MCL they charged you with, it should be there if you can read it. If not, maybe go to the court and see if they would give you that info, if they do don't know if they would charge you for that info or not. That way you can check what you were actually found guilty under. Also you could pull up a copy of your driving record with SOS for a FEE and if you need to you could also pull up a copy of your Record with MSP, also for a FEE
I had to pull up a copy of my record with MSP before I applied to see what charge I had from 30 years ago so I did not look unintelligent when I went in front of the board in October 2010
for me it was worth the 20 bucks because a second charge I had in the 90's never made it to the record