If you are going to try and clean it, be sure to check the springs that are under the two contacts. They get real weak. When I cleaned mine I just stretched these out and thought that would be good. Needless to say I had to take it back off a week later because the backup lights quit again. So this time I replaced them with some new ones that I got from a surplus store. They where too long but where the right diameter. So I just cut them to fit.