Did you change the wiring harness and plug that plugs into those rear taillight assembly mating, supposedly weatherproof plugs? If you did not, that's probably where your problem is. Unplug itand look for a slight burn in the middle wire/plug area. If so, you need to mark the location of each wire to the mating taillight prongs and then cut that bad plug/connector off, attach wire leads to each wire and plug them into the mating prong on the taillight plug. Once they all work, apply silicone weatherproof caulk to the whole assembly and let dry overnight. Works like a charm on 97' and saved me the expense of a new wire harness. Any ?s, email me at
[email protected].