Join Date: May 2015
Location: Stuttgart, Germany
Feedback: 0 reviews
Kind of tough to diagnose just based on your description. Sounds like you definitely have a short somewhere. Me personally, just based on what you've said so far, I would troubleshoot starting at the housing. Remove and partially disassemble the housing. Remove the bulbs and inspect for corrosion. Check the wiring plug both on the harness still attached to the Jeep, and the where it plugs in at the back of the housing. Maybe upload some pics if you think anything looks out of the ordinary. Check for broken/cut wires, corrosion, poorly seated bulbs, etc.
I had an older vehicle that was giving me all sorts of trouble and doing weird things. In the end, it was just a stupid bulb that hadn't been seated properly. Much older vehicle though. Not sure if it could be something as simple as that in your case.
Did you get into the housing recently for any reason, or mess with your lights at all back there recently? Trying to figure out if anything you did or modded recently could possibly be the cause. Did this start shortly after doing any mods or performing any kind of service on the vehicle, especially anything that has anything to do with electrical?