You will know if its broken if the metal part inside is broken, what I mean by broken is not connected with the other metal as shown in the video\rbrWhat to do if your dome lights go out or your car fob is not working as shown in this video is to replace a 7.5A(amp) fuse which is for the dome fuse. Dont go to high or to low or your car might get worst. You could do this yourself to save money and it is easy to do that is why I am showing :).\rbr\rbrYou will need that little fuse puller that I got from under the hood or some sort of thing to grab it.