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Tail lights + Turn signals + Hazards not working. Brake lights, headlights, etc. fine

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Old 06-23-2015, 06:11 PM
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Question Tail lights + Turn signals + Hazards not working. Brake lights, headlights, etc. fine

Hey guys, I'm trying to diagnose this issue but I'm really not great with anything electrical :/ Title pretty much says it all really. I replaced the turn signal switch thing inside the steering column recently (problem was happening before this) which didn't help. But does anyone have any ideas what problem would cause these two linked problems? There may be a small chance that it's a coincidence and two separate problems, but IIRC they both stopped working at the same time.

Just looking for some ideas to look into because I'm kind of stumped.

Thanks guys.
Old 06-23-2015, 06:47 PM
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Originally Posted by esoteridactyl
Hey guys, I'm trying to diagnose this issue but I'm really not great with anything electrical :/ Title pretty much says it all really. I replaced the turn signal switch thing inside the steering column recently (problem was happening before this) which didn't help. But does anyone have any ideas what problem would cause these two linked problems? There may be a small chance that it's a coincidence and two separate problems, but IIRC they both stopped working at the same time.

Just looking for some ideas to look into because I'm kind of stumped.

Thanks guys.
Welcome to the forum! Always be sure and list your year, trim,engine etc. Helps because equipment changed over the years. Have you checked/replaced the turn signal relay?
Old 06-23-2015, 07:07 PM
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Originally Posted by Cheddarnut
Welcome to the forum! Always be sure and list your year, trim,engine etc. Helps because equipment changed over the years. Have you checked/replaced the turn signal relay?
Thanks for the welcome lol. I lurk here off and on but haven't posted much.

My year and engine I figured people would be able to figure out from the thing under my username. But for posterity : 91, 4.0L. Not sure if they even had different trims in 91 but mines whatever the most basic would be. Definitely no power anything lol.

I have checked fuses but not relays. Is there a way to do it visually or do I need to use a multimeter or something? I'm sure my Haynes will tell me, but do you know if it's in the fusebox in the driver's footwell or under the hood?

Thanks for the reply, I appreciate it.
Old 06-24-2015, 08:49 AM
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Originally Posted by esoteridactyl
Thanks for the welcome lol. I lurk here off and on but haven't posted much.

My year and engine I figured people would be able to figure out from the thing under my username. But for posterity : 91, 4.0L. Not sure if they even had different trims in 91 but mines whatever the most basic would be. Definitely no power anything lol.

I have checked fuses but not relays. Is there a way to do it visually or do I need to use a multimeter or something? I'm sure my Haynes will tell me, but do you know if it's in the fusebox in the driver's footwell or under the hood?

Thanks for the reply, I appreciate it.
Best thing is to do a signature with your details. The stuff under your username doesn't display automatically. I believe this is the correct diagram for the 91, the modules are cheap and easy to replace so I've never tested one.
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Old 07-01-2015, 07:41 PM
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Originally Posted by Cheddarnut
Best thing is to do a signature with your details. The stuff under your username doesn't display automatically. I believe this is the correct diagram for the 91, the modules are cheap and easy to replace so I've never tested one.
Hey I've been busy and forgot to return here to update with some stuff. I took out both flashers and the hazard one was indeed bad. Replaced it and now my hazards work! Even blinking on the gauges. Anyway, I also pulled the fuse for turn signals + back up lights which I found out was bad. Dunno how I missed it last time. I swapped another 15A fuse from the radio I think it was and plugged it in, but it didn't seem to do anything. I bought a new fuse anyway to stick in it yesterday. The parking/tail lights fuse is still good, but of course they still aren't working.
Old 07-02-2015, 04:19 AM
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Switch known working flasher in turn signal ones spot yet ?
Old 07-02-2015, 04:20 AM
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Indicator on dash light and not blink ?
Old 07-02-2015, 04:52 AM
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Originally Posted by freegdr
Switch known working flasher in turn signal ones spot yet ?
Well I checked the turn flasher and hazard flasher both by hooking them both up straight to the battery. The turn signal one clicked just fine. But I will switch them out just to check if for some reason it's clicking but not working.
Old 07-02-2015, 04:53 AM
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Originally Posted by freegdr
Indicator on dash light and not blink ?
You mean the gauge cluster or whatever? They don't blink at all while trying to use the turn signals, but do blink with the hazards now that I've got a new hazard flasher in there.
Old 07-02-2015, 05:10 AM
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Originally Posted by esoteridactyl
You mean the gauge cluster or whatever? They don't blink at all while trying to use the turn signals, but do blink with the hazards now that I've got a new hazard flasher in there.
yes cluster when you put on turn signal does indicator even light up ?
Old 07-02-2015, 06:32 AM
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Originally Posted by freegdr
yes cluster when you put on turn signal does indicator even light up ?
No not with the turn signal. But it DOES with the hazards now after I replaced the hazard flasher.
Old 07-02-2015, 07:34 AM
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Swap the turn signal flasher with the hazard flasher is what they're trying to get you to do. See if that changes anything.
Old 07-02-2015, 07:35 AM
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Originally Posted by cruiser54
Swap the turn signal flasher with the hazard flasher is what they're trying to get you to do. See if that changes anything.
Yeah I mentioned that I will try that just in case.
Old 07-03-2015, 03:49 AM
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Default Same thing

My 91 did the same thing, I looked everywhere as to why my rear turn signals and tail lights wont work,,,turns out, I removed the kick panel drivers side and there was a large connector that had unplugged itself, the tabs that lock it into the other half had dry rotten and broken over time and that allowed the connector to separate. I pushed the two halve back together and put a nylon tie strap around the connector so there's no way it can separate again. that made me crazy until I stumbled across it...hope this gives you an idea.
Old 07-03-2015, 03:51 AM
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Originally Posted by aa7kn
My 91 did the same thing, I looked everywhere as to why my rear turn signals and tail lights wont work,,,turns out, I removed the kick panel drivers side and there was a large connector that had unplugged itself, the tabs that lock it into the other half had dry rotten and broken over time and that allowed the connector to separate. I pushed the two halve back together and put a nylon tie strap around the connector so there's no way it can separate again. that made me crazy until I stumbled across it...hope this gives you an idea.
Was it pretty long? Wondering if it was the connection for the multi switch in the steering column that I just replaced. It at the very least partially works though or else the hazards wouldn't have started working again.


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