Josh Honigford

Okay I've owned this 98 Cherokee for 3 years now and have had this problem on and off the whole time.

Currently my left tail light is out as is the license plate light, fuse 7 is good pulled it and checked with testlight. Also front left markers work. I've swapped both rear bulbs to ensure the bulb does work.
I've looked for broken wires in common places i.e. talegate hinge.

I haven't found much on this issue thus far and hoping to get some help. Thank you.

JandDGreens

I don't know if this will help you but have you checked the wiring harness plugs for corrosion? or maybe it in the wiring somewhere. The left tail light is also the place where the towing harness would plug into (at least in my rig) and I had to purchase a new tow harness as the one that was in the Xj when I purchased it was faulty. I still must have a short somewhere as when I hook up my trailer I don't dare use the E-Flashers it will temporally disable my right brake light on the trailer???? go figure when I tow anything I just don't use them. Ever.

Josh Honigford

The plugs look good no build up of any kind, have power running to them. Still not seeing any broken wires.

Waynerd

cpttuna

Run a new wire to your right tail light and connect the license plate light and left taillight to it.

Josh Honigford

I ended up just running from the right tail light to the left for a temporary fix, license plate light is connected somewhere in there is working now too. Going to check every wire with a volt meter today and see what I come up with. I'm thinking it's just dropping voltage somewhere.

craiso

Find a bulb that draws a good amount of current, like an old-school headlight bulb, and use it to check for voltage. It the bulb illuminates when you ground it out, wiring and connections to that point are good. If it does not, you have corrosion to deal with, or a connection that is hanging on my a few threads. Give it a shot.