Hey guys, so i went to hop in my jk yesterday and when i started driving I noticed my blinker was hyper blinking. So i thought a bulb must be out. Went and bought new bulbs for both sides even though the driverside was working. Put the new bulbs in and nothing.. Passenger taillight is still out. The running lights work on both but the blinker and brake is out on passenger. Checked the fuses, cleaned the harnesses.. I also have a trailer hitch if that can cause anythig but i've had it on there for months.
What else can i check for?
Bad ground?
Help me:(

 

Who installed the trailer harness? If it is just tapped into the tail lights, I would start there.

 

Do you know for sure the other bulb was burned out?

I had one that I verified the stop/blinker filament was burned out. Replaced it, and the new one didn't work.
Because I knew the old one was working fine until it burned out, I knew the wiring was OK. So, I wiggled the new bulb in the socket, and it has been working ever since.

Somewhat unrelated to the issue at hand...
I noticed the bulb can be installed either way, and was wondering how that is possible since for decades bulbs were keyed to the socket.
So, I took the old one apart to find out. It's all in the way the contacts are positioned on the base.

 

Uhaul.....

 

No i have no idea if the bulb was burned out.. I just assumed

 

I did a little more research and it might be the pigtail. Im going to plug the passenger taillight into the driverside taillight and see if that works.

 

Fixed it! Some wiring uhaul messed up on... Idiots.. They left an open wire so i put heat shrink rap on an wala!

 

Great! Glad to hear it.

 

Yeah it was weird but im relieved!!

 

Glad to hear it's fixed. These new systems can be a pain to troubleshoot.