So my low beam lights don't work on my 95 mustang. I already replaced the headlight switch with new connectors and I tried a new switch also and the low beams still don't work. My parking lights work and high beams work. I've searched and I have read that it could be the multifunction harness? Is that the only other thing that I should check? Also I have looked at the fuses and made sure the light bulbs aren't burnt.