Tail lights not working

I had two fuses blown. I think the BPM is going out.

Make tail lights are not working however my brake lights and license plate lights are working. Can you tell me what the problem is?

I am working on a 01 XJ8 (4.0L Engine) where the tail lights are not working. The bulbs were replaced previously, and after ensuring they were installed properly, checked and found no power to the tail lights. All the other bulbs on both the left and right side boards work fine. All the rest of the lights on the vehicle work fine, too. We checked all the fuses, and looked for information if there was any relay that was responsible for the tail lights, and found nothing. A buddy of mine suggested the Body Processing Module, and another friend has a car lot that we were able to swap one out, and still nothing on the tail lights. We are at a loss, and you are my last hope before the dealer (cringe). Any help would be greatly appreciated.

I have a 1998 XJ8L 95,000 mi. The taillights stopped working as well as the plate light. All other lights work. Bulbs, fuses, relays all work. But. This morning when coming into work in very rainy weather my taillight worked for a moment but my brake lights didn't. Help?

ON all jags, from time to time have light problems, Flickering, Not working. In most cases it can be fixed by cleaning the main ground wire, then Presto!