I took out the fuse box and cleaned it up in apple cider vinegar and rinsed off very well and let dry. Then used some dielectric grease to coat the fuse ends and reinstalled them . I was having some contact or resistance issues because a fuse or so was getting hot. And when I turned on my lights at night my heat gauge would go up hotter. But it all cleared up after I did what I did. Also clean any contact surface where your bulbs go in . May not be your issue but it helped me .