Re: Rigth side light
i get the same, left sided and right sided light failure quite regularly. sometimes it's nothing and other times it actually is a blown light so you've still got to check. maybe it's related to the third brake light above the back window - there are 10 of those little bulbs i've discovered and they're very sensitive to the way they're pushed in and knocked about while reassembling the case back onto the car.
what makes no sense to me is that you can drive to the auto shop for a replacement bulb and you get no warning light at all that there is no bulb in place, faulty or otherwise. so these warning lights can warn you when there is no apparent problem but they won't when there obviously is. it's a joke.