Ive got a buddy who also owns a 91 cherokee very similar to mine. His cherokee keeps blowing the tail light fuse located in the fuse panel under the dash. We spent hours trying to fix his situation today and after all the attempts, it blows the fuse as soon as we turn the headlights on. Any advice and help is greatly appreciated!!

 

dont turn the headlights on, or use the brakes. haha jk. i would say to check the bulbs, because i believe that when bulbs are about to blow, the draw more, but i might be wrong.