Our van has the "Air Bag" light coming on recently and I'm not sure why. I know the air bag is an important safety feature, so I'll probably have to bite the bullet and take in to get it looked at. I'm just wanting to get myself prepared for what this is going to cost....best case scenario to worst. I'm hoping they will just hook it up and see that it needs reset at a very minimal cost. Or is there anything I can do myself?