I have a similar problem with my '94XJ: I have DRL, I don't have low beams, I only have high beams when I pull and hold the turn signal stalk, my high beams won't stay on. The bulbs (both high and low beam) are good - I swapped them over to my YJ and they worked, the headlight fuse under the hood looks good, I suspect the relay? or the dash switch? I don't know where the relay is, and I couldn't get the switch fully out after pulling apart the knee kick panel and dash face trim, pulling the knob (via pushing the little button underneath) and unscrewing the retaining "nut".