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I'm New! Electrical Gremlin HELP

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Okay everyone, ill start this simple. Older guy had a 2wd 91 MJ sitting for about a year with eleteical gremlins. Convinced him to sell it for 1200$ canadian. "AB, Canada"


The issue.. 


Brake lights work.

Left turn signal works (Front/Rear).

Running lights don't work in rear. 

Cluster lights don't work, sometimes works when right turn signal is blinking. 


When you apply right turn signal "Front right head light & turn signal blink as the same time. Also both rear turn signals blink almost similar to the Hazard lights.


Also just noticed, the clock illuminates with right turnsignal in an annoying flashing motion. Grrrhhhh ...



Where do i start, I'm confused. 


Anyone dealt with this?




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Check this connector:


10-pin connector

I suggest unplugging EVERY electrical connection in the engine bay you can find, whether engine related or not, and spraying it out with a good electronics cleaner, visually inspecting the terminals making sure they haven’t retracted into the plastic holder, and then plugging it back together.

There’s a critical 10-pin connector for the front lighting system located in front of the air cleaner and behind the left headlight assembly. Don’t miss that one. Also be sure that the connectors to the ballast resistor mounted near the air cleaner housing are clean and tight.

ALL of the relays should be removed, the terminals wire-brushed until shiny, and the receptacles sprayed out with contact cleaner. Then plug them back in. I do this on every Renix Jeep I purchase or work on for someone else.Ballast Resistor

Revised 1-31-2016

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I had similar issues when I first got my truck. Both front turn signal sockets were bad. The ground tab was rusted off of both. One of the PO's had also attached a wire to the side marker that was scotch locked in and shorted to ground. After replacing the front sockets and removing all the added wiring it was better. I redid the taillight ground and it all worked correctly. So IMO redo the ground and check the wiring for additions or shorts.

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2 hours ago, SlimShaney said:

Hello everyone! i found the issue!


it was a bad harness behind my passenger headlight! I'm so happy all my lights work, after using 12 butt connectors & cutting everything that was bad out. Everything works! :) 


I'm as happy as a Jeep Mj


Yeah, that would do it :laugh:

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