My 2001 F350 SuperDuty Deisel has no power to the power windows and the interior lights, everything else seems to be working

I can not seem to find the problem as to why I have no power to my power window relay located under the dash and I also do not have interior lights when I open the doors. The interior lights will work when I use the manual switches but not opening the doors. I used a electrical contact cleaner on the terminals and it seemed to solve the problem ounce, since then I can not get power windows or interior lights to work at all. Isure could use some help.