If the harness doesn't fix it I would check the ignition switch under your column that wide flat plug jeep used is a big POS! I was having electrical issues with mine and when I started trouble shooting I started there because it was the first switched source so I opened the column halves and seen the main power feed wire going in the plug was burned around the insulation and had melted the plug where it was so I cut it loose and chopped the bad part of the plug off as well I then found a female flat crimp conn. that fit the male on the switch and crimped it on the wire after I had cut away the burn't part and all my friggin elec. gremlins were now gone so its just an idea I had and it worked!!!!!!!!