Elima27: With all due respect to you and to the helpful forum members who have provided some excellent suggestions, I personally think you are way in over your head and trying to troubleshoot systems you don't have any understanding of. Unfortunately the systems you are having problems with don't lend themselves well to mistakes - they can hurt you or worse.
Please find someone with the basic knowledge to use the suggestions you have from the forum and get your trailer fixed properly. Your life may depend upon it!