Same thing happened in my VN sedan. I ended up taking it out (easy to do) and taking the plastic surround out (as i was replacing the fascia anyway), and i played with the ODO, just tapping it a little and got rid of some dirt out of there, and put it back together, put it back in and she works.
might just be a little dirty or clogged up. take it out and play with it first, take it for a test drive and see if it works, otherwise it might be something mroe serious.
Good luck with it.
Follow Your Dreams......RIP Brocky 1945 - 2006......May God Rest Your Soul