So when I hit my turn signal, the dash indicates as if the hazards were on, except they flash slowly, and the turn signal lights work, but very flash very slowly, however the headlights also flash. This happens when I hit either left or right turn signal on the lever.
I did some research, which led me to think it was the multi-function switch/turn signal switch, so I replaced that, which changed nothing. I haven't been able to find anybody else online with this exact issue, currently my next move will be checking/changing the flasher relay(s).
If anybody has any advice or experience with this issue I'd appreciate your input.

 

I have a similar issue on one of my '96

I believe the root cause of the fault may lay in the all-to-common "door wiring harness" faults...as it is most often triggered by using the LH, and less often the RH door

On a recent occassion, when I experienced hazard lights on at all times, even with no key, I removed, cleaned terminals and reinstalled flasher relay (bright yellow)
the immediate problem stopped. It is an uncommon relay

It was subsequently suggested to me to clean the earth wire that is nearby (both under lower plastic panel)..that sounds like a good idea

 

So I checked out the flasher relays, neither of mine were bright yellow, one was light blue one was bare metal, I swapped the two, and the same problem happened with the turn signals but the flasher blinked flasher when I activated the hazards. So I took that as meaning the relays were fine. I'll check out that ground.
Interestingly enough, I had a bad 15A fuse, I replaced it and nothing changed, I think it was fuse 4 "flash to pass".
Thanks for the input, sorry I took so long to update this thread.

 

See my sig, #1. You have classic bad ground symptoms. It might not be that, but that's the place to start.

 

Ditto. Looks to see if there is a ground wire in or near the headlight assembly that is broken or corroded. What happens when the ground connection is broken, is the signal gets grounded back through the headlights.

 

sorry, my bad, I misread yours as '96.

I see now you have a '93

good source of info is free download the relevant FSM

 

Thanks for the input guys, I checked out that ground, cleaned it down to shiny metal then reinstalled, unfortunately no difference. I'll check out the FSM

 

CRUISER'S MOSTLY RENIX TIPS

CONNECTOR AND RELAY/RECEPTACLE REFRESHING

OCTOBER 30, 2015 SALAD 24 COMMENTS



I suggest unplugging EVERY electrical connection in the engine bay you can find, whether engine related or not, and spraying it out with a , 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.

 

I checked out that 10 pin connector, cleaned it; no difference, along with a few others.
The weirdest thing, at least for me, is that it seems to flash faster when I have the jeep running, and more slowly when the key is just in start.
This is driving me crazy.

 

the fast and slow is the voltage. Alternator is spinning providing more voltage when its on. When its off, its just battery power.

 

The most likely cause I can think of is wiring or connector somewhere is partly fused,

I dont know about the '93, but for the 95' and later, in the FSMs I downloaded there is quite a lot of info on testing those functions with a multimeter, and circuit diagrams

That will be your bedtime reading, you need to find out where the two circuits have adjacent wires, and/or circuit paths, and start there

 

Iv'e been looking at the wiring diagrams that I could find, not making a whole lot of since. The FSM I downloaded is very general and doesn't have a much for specific testing procedures unfortunately.
I took readings on all the pins on that ten pin connector and checked the corresponding wiring harness with a battery, it seems like all the lights work individually as they should as far as I can tell but when it's all together they don't. For example if I activate the left turn signal, then one pin gets 12 V and that same pin on the other half of the harness if I give it 12V then it lights the left turn signals. It doesn't pulse the signal, but I assume thats because the flasher relay isn't seeing enough resistance to build up enough heat to flash (P=R*i^2).
One wierd thing is sometimes some pins have a very slight voltage while another pin gets the full 12v (say 0.06V or so), idk if this indicates a short
And the wire that goes to nothing in the male harness, that has 12V always in the female ten pin was very corroded and broke off, I assume this shouldn't matter since it lead to nothing
And my horn doesn't work, if I run the Jeep after not hitting the horn for a while and then hit the horn. it blows very very slightly, after that, nothing. I cleaned the connections and tested the horn itself, thats not the issue. I also swapped the relay, same issue. I can't help feeling like this is related.

Sorry about the long and rambling post. If anyone has a good FSM manual that they can share without violating any forum rules / copyright laws I'd appreciate that, the one I found kinda sucks

 

good news everybody, got the turn signals and headlights working again.
I added a ground directly from the driver side turn signal bulb to the chassis and that seems to have fixed it.
Horn and brights still don't work but I think that might be a separate issue