I can't figure this one out
........My 05 will not run the interior lights on my horse trailer, works all the other lights fine ,my 02 also quit running the interior lights but worked all the others ok......Now, my father in law has a Ford that works everything ok and my bro in law has a Dodge that also works all the lights correctly.....I'm absolutely stumped as to what the problem is or what I could be doing wrong......Can't be the trailer as everything works ok for other people?????
Anyone have any ideas??????