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In this video I have a look at a customers Jeep Wrangler with the big 3.6 that has a customer complaint that the turn signal works until you turn on the headlights. At that point the light goes out completely. Sounds like a typical Chrysler/Jeep bad ground to me 😏
-Enjoy!
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2012 Jeep or Wrangler that's the Sahara It's got an awesome sticker on the back too. Let me tell you right there, that's some funny stuff, right? Only because it's true. Uh, what do you guys bring it here for? Oh, the left front turn signal evidently goes out when you turn on the lights. so we're gonna kick on the fourways and we can see.

We got the blinkers in there I've got the blinker right there. that blinker right there. so that's all good and we come up here. We've got the blinker there, the blinker there, but you can see the one on the left of the vehicle.

It's a wee bit dimmer and it goes out when you turn on. he's at the headlights. But when you turn on the marker lights little glove and we all know why. Because Chrysler So I turn that into Market lights in the latest out.

So what's that? Tell us? I'll tell you what it tells us, tells us it it's background. I Assume I assume it has a background and I assume that because um, I can only imagine that somebody probably already tried to put a bulb in it I would think so. let's have a look-see and see if that's the case. So this is kind of Handy where that light is? huh? Let me, uh, give us a ground here with our test lights.

see if there's anything out here that's not rusted. Story of my life right there. All right. So I Hooked on the EBS module, we got our this is a low current test light 150 milliamps maybe Now we don't even need a diagram because we have three wires.

I'm assuming black is ground, this is going to be marker light, turn signal or vice versa one or the other. So let's just probe into it. Now we should have a blinking light on the turn signal which is that one. Well, we got it first try.

Huh? Can You guys see that? So that is our turn signal wire. Now my assumption is that when we probe the ground, we're also going to have a blanky light and we do so. and that's kind of how silly this video is. So I've probed into the blackware and we have you know current flowing through that that hasn't you know found itself to ground yet? and then we'll go into the marker light and we have nothing.

Everything's cool there, but we can see our ground circuit. Hope you guys can see that is is blinking. So I guess I can prove it to you. Another way we can hook a jumper wire to it or what we can do is we can look at a wiring diagram and see where this goes because we know a is a Chrysler B All their grounds suck and C they usually fail right at the terminating point of the eyelet.

So let's look on the diagram and see where the ground islet is for this left front light. Okay, when it does a diagram, gosh, I Need glasses? Let's see left front side marker. Okay, so that's this one here. Oh it's not depicted as a bulb, it's just a square box that makes sense.

left front part turn so it has a ground which is black. the white with green wire which is turn signal in the white with light green which is your indicator light. So it's this. this one right here and you guys can see the ground goes down there and that is ground One Zero Two G102 near right headlamp assembly and it looks like there's a bunch of grounds one two, three, four at least that are shown in here in this picture.


There's four four separate grounds that go to G102, which in typical Chrysler fashion I'm sure there's a lot more in that. Let's go see if we can find it. Oh, would that be? Wouldn't that be nice if it's this one right here? Do you? 102? Let me. um that is the right headlight assembly and that is a nice crusty one with a whole bunch of wires going to it.

But I See Okay, that's that's a connector. Let me see about getting this out of here so we can have a little luxie and uh, see what we see. Foreign? Foreign. Oh now we can see.

Oh girl Crusty! Krusty All right, we're not even gonna test it. We're going to take a big fat guess. Based on a lifetime of experience, we could find the individual wire, but there's more than four going into that. Mia See if it can't shift you folks around where you can see, we'll tear it off apart.

We'll put some eyelets on it I'm sure everybody will be happy in the end. All right, that's perfect. Full there. Let me go.

shut off the four ways there. Let us see what we've got here with some crusty, very crusty. the Krusty Crab Lady Let's open that up I need to maintain as much wire as we can so we'll we'll open this up a little bit here. Oh easy like that.

Give her just a couple of flicks and a screw and a twist and turn here. Yeah, let them turn to dust as they often do I Don't know why Chrysler does this, but a big fan of GM and all the ground wires into one little spot. so that's why I prefer coming to fix these instead of doing like an overlay or just adding a ground down there near the light just because when one of these items goes, the problem is other ones usually are not far behind it. Get out our pocket knife here.

can't tell if they're all fused together. A little tug, we got one. We got one separated from the group. Let me, uh, chop it off.

There looks like there's some more there. There's four and that's dog bringing out the dog. That one maybe I'll Honky Tonk there. So there are four little wires and one big Jabroni one two, three four five.

We got five little wires. So five little wires and one big. Honker Let me go get some eyelets and we'll get them all resoldered, crimped. We'll crimple a cider.

We'll do everything. Try to tick everybody's box the best that we can have a see what we can do. I Think first thing first. the first thing.

I Always first, always first. the first thing you do. eat. Let's even these little guys out.

Let's make everybody equal. 2023 Okay, let's do some stripping. What? what? Stripping? Yes Ma'am no I'm just watching the stripper. You wanna come see? You can bring them over here.


It's not very exciting though. These people are watching it though. They're getting what they paid for though. Let's see: I'm half blind trying to do this.

Do I have an eye doctor's appointment Vanessa yeah if I could only see where I wrote it down slot There we go and then this one this one. we're gonna have to do it by hand. I don't have a pair of strippers for that. so we'll go like this.

We'll get out the doll blade and give it a little bit around there. Okay, they say cut toward your Chum not your thumb. that's what they say. I'll give her a little slot.

there. it is there. it is just like that and I got one of these. This is all I had I Think that could accommodate everybody? everybody in the club.

let's see so we're gonna stick that on there. You guys are gonna love this. You got it. Love Love love love.

Just make sure they're all this one. This little guy here needs a little more stripage because I want all the copper to be even where it begins. You'll see what I'm saying. Maybe there we go there.

we go. Now we're talking boys and girls. Some lady informed me on my channel the other day. I should say boys and girls because apparently there's a lady that watches us.

Now we're gonna bend the one little tabby over here. This is gonna get some people going which is great. Let me go get a different pair of players so I can give her the full squeeze. I think I need a different pair? Maybe not.

We want it to look nice. Don't get a lot of torque with these players. I'm gonna bring the other pair over. Yeah, let me get a different pair here folks.

I Think it'll be nice when it's done. Oh yeah, Oh yeah. look at that nice flatty, nice flatty crimp. Bring this one over.

Here Comes Flatty number two. You're lined up just perfectly. Oh crimpy cramp. So there that is I don't know if you can see it or not.

We got a nice flat crimp on it now to be assured that we have a great connection. We're gonna solder it to Sol D E r Here comes the triggers. I'm gonna be using some 60 40 flux core. Breathing in that smoke deep.

Don't breathe it. It's wet folks. You breathe this in, you'll act like me. Ain't nobody? Want that? Now we must let it cool and then we can crimp over the other end here that goes on the wire.

It's gonna be like it's gonna be like Factory Folks got the patience of a three-year-old Hang on to it with that and then we're going to give her a little crimp down around here. I Don't think you have to go full gorilla with this portion of it. just like baby gorilla. Fold that around there.

I'll get these. We'll set them on a medium gorilla type setting. Squeeze this direction. Hey guy, give him a squeeze there.

Boom There it is folks. Be sure. be sure to go in the comments and explain in detail how this is an improper fix obviously. but that's okay.


that's in 2012 or 13. So you know what that means. It's almost on hospice. Hey, there goes again.

Um, and I will give you my unlimited limited mileage warranty that this will Outlast this vehicle 100 guaranteed or your money back. A bunch of fine print there that solidifies it. Replacing bets Folks at least your bets. Mm-hmm Thank you.

So clicky. Oh, right now right and shiny. Turn on our markers. This one doesn't work.

This one doesn't work. great. Really like check these ones out. they're all corroded on these junkers is a bad bulb.

Let me go get some bulbs. Well boom boom pretty boom. They're all working now. Just gonna throw it back together.

All right folks, That's it. Got the Deep all done. the lights work. We put a couple bulbs in there.

it'll be happy about that. and I think that's about it. Anybody that watches our Channel knows that Chryslers and their grounds are the pets are terrible I like our government. uh and that's it.

It's it. It's fixed. He's happy I'm happy you're happy I think Mrs O's happy you happy he's so happy she says and uh I'd be happy to have Facebook You guys want to do just my viewers I can do it. Thanks for watching.

Thank you.

99 thoughts on “Jeep wrangler: turn signal stops working when the headlights are on”
  1. Avataaar/Circle Created with python_avatars jace damon says:

    I just checked my wheel hubs yesterday and with removing the hub I didn't have to get the air hammer out because it just feel out from the last tech whole installed them the right way never have I had this happen on a new york truck with 245k miles on it thanks last tech

  2. Avataaar/Circle Created with python_avatars Bucks WoodShop says:

    Owner can go Jeeping again! 👍👍

  3. Avataaar/Circle Created with python_avatars ronthepainter says:

    I'm only here for the strippers.

  4. Avataaar/Circle Created with python_avatars tatertots-N-soup says:

    Jeep Wrangler
    Dim parking/marker light. Blinks when vehical strikes bump

  5. Avataaar/Circle Created with python_avatars Ronald Proulx says:

    "It will be as good as factory "😂 talking about a Chrysler 😢😅

  6. Avataaar/Circle Created with python_avatars CrowTTubebot says:

    The biggest question here is, who knew there is a Wrangler driver out there who actually uses turn signals?

  7. Avataaar/Circle Created with python_avatars Galen Tangleborn says:

    I laugh at the fact we are in 2023 and yet most auto manufacturers insist on continuing use of incandescent lamps. Nothing more annoying on a modern car than the dashboard nag continue to say there's a lamp out despite replacing all with LED. OH, but for an additional "value added" upsell you can get a magic "trick" to convince the computer into thinking you still use incandescent.

  8. Avataaar/Circle Created with python_avatars Jordendog says:

    Please find my 364 point explanation of why this fix is incorrect. It`s best if read at bedtime. 😁

  9. Avataaar/Circle Created with python_avatars Don Bishow says:

    I would also use liquid electric tape.

  10. Avataaar/Circle Created with python_avatars Bonzo Craft says:

    Well your day went a heck of a lot better than Ray’s did.

  11. Avataaar/Circle Created with python_avatars Deborah Dodge says:

    Hey Eric, thanks for adding us girls to the conversation. I'm a retired school bus mechanic, 30+ years. Love your videos and humorous banter. Keep it going

  12. Avataaar/Circle Created with python_avatars GlassVial says:

    Soon as Eric O showed what was going on I said out loud bad ground, I guess I've been watching too many SMA videos over the years.

    Half the reason I watch is for the repairs. Half the reason I watch is for the witty banter. And half the reason I watch is for the outright trolling 🤣

  13. Avataaar/Circle Created with python_avatars SS Man2003 says:

    I think your method was 10 times better than factory so I think the haters can lay off the Scotty watching.

  14. Avataaar/Circle Created with python_avatars Walter Dodds says:

    Eric they come from the factory on hospice.

  15. Avataaar/Circle Created with python_avatars Jeremie Evangelista says:

    Video on the Vette? Please?

  16. Avataaar/Circle Created with python_avatars Fred Salter says:

    I wanna move to Avoca!

  17. Avataaar/Circle Created with python_avatars boogerhead0 says:

    The solder flux is usually pine rosin, Rosin Pine Resin Colophony. The fumes will not harm you, in fact, generally a pretty nice fragrance… if rosin flux..

  18. Avataaar/Circle Created with python_avatars Vmx G says:

    You should tell us how you feel about Chrysler! LOL!

  19. Avataaar/Circle Created with python_avatars Russ Grebenc says:

    Everything electrical in mopars sucks. Always has.

  20. Avataaar/Circle Created with python_avatars adrenna123 says:

    Nice fix. That eyelet will definitely outlast that jeep by 50 years. As for adding heat shrink? it will only collect the water and keep the eyelet wet, aiding its future demise.

  21. Avataaar/Circle Created with python_avatars Warren Tinsley says:

    Needs to be a vid on that Vette next stall over

  22. Avataaar/Circle Created with python_avatars CanonFodder says:

    As a 30+ year electrician….I concur…..Chrysler/Dodge vehicles have garbage wiring and grounds…they're frigging nightmares to chase wiring problems on.💣

  23. Avataaar/Circle Created with python_avatars vwwrenchie says:

    Eric continues to bring us all together in 2023..people..wires..it's all about unity and being well grounded.Way to go Mr. O 😎✌🇨🇦

  24. Avataaar/Circle Created with python_avatars Lisa shiela says:

    Calm down fella it's a Jeep thing@!

  25. Avataaar/Circle Created with python_avatars Cyrys Von Nachtseite says:

    always check to see the correct bulbs are in place … 1st…. Seen wrong lamps installed by someone. That screws up the running or directional. Then wiring …. 6 out of 10 times.

  26. Avataaar/Circle Created with python_avatars Andy Eckel says:

    HONK, HONK
    Heyyyyyy! It's that guy!

    a minute later

    HONK, HONK
    Heyyyyyyyy! There goes that guy again.

    Cracks me up.

  27. Avataaar/Circle Created with python_avatars Craig Arndt says:

    Another great fix. Good times.

  28. Avataaar/Circle Created with python_avatars chevy guy says:

    Love it

  29. Avataaar/Circle Created with python_avatars Greg Wildenthaler says:

    watching the strippers! My kinda video

  30. Avataaar/Circle Created with python_avatars James Cole says:

    I own this one. 2013JK2D and have taken apart the whole Jeep about 3 times so far but I have not fixed that one yet. Thanks for showing me yet another fix and yes I solder all mine back as well. I will say that after I have replaced the suspension, The D30, the shocks, the brakes with a Big brake kit, the control arms with core4x4 HD, The drive shafts, The draglink, the tie rod and trackbar with Steersmarts 1.5 ton HD, The steering with PSC Big bore steering box, the plastic bumpers, ALL the cheap ass lights with JW Speakers, The Radiator, hoses, plugs etc.. the tires and rims and too many other little things to list. The Jeep is perfect now. Runs like a well balanced top. Only cost me about another 15K+ on top of the price of the Jeep. At least mine didn't have the rocker arm issue.

  31. Avataaar/Circle Created with python_avatars Mike Brown says:

    That terminal almost looked like you could've used a spark plug wire crimper on it.

  32. Avataaar/Circle Created with python_avatars Marlene Perry says:

    Manuel transmission….HAHAHA!!

  33. Avataaar/Circle Created with python_avatars matty b says:

    YAY a 'murrican that can say solder properly, instead of soddur

    Its an improper fix because the vehicle hasnt been scrapped. Jeep has a great factory feature, built in obsolescence that occurs about 3 hours after warranty expires, sometimes sooner

  34. Avataaar/Circle Created with python_avatars Jeffrey Green says:

    Yep yep. My local high-volume car wash just put up a sign that they no longer accept manual transmission cars. I guess it's a lost art like writing in cursif. I have an MT Lexus IS250 and found a site that sells similar stickers. "The Manual Gearbox Preservation Society". Oh… and finally you have a "real" jeep in the shop sir it is a welcome change.. "noice" =)

  35. Avataaar/Circle Created with python_avatars Matthew Durga says:

    What's going on with that hotrod in the background Mr.O 😀

  36. Avataaar/Circle Created with python_avatars PlayscBricks says:

    It's only improper if it doesn't work.

  37. Avataaar/Circle Created with python_avatars smitty1952 says:

    Those who can, do, those who can't just critique the crap out of everything Eric O does. Time for some more welding Eric so you can really get their tongues wagging!

  38. Avataaar/Circle Created with python_avatars Øyvind Helgedal Nilsen says:

    Great job as always!

  39. Avataaar/Circle Created with python_avatars Iain Kinsella says:

    Jeeps are the Jennings of the automotive world…

  40. Avataaar/Circle Created with python_avatars MrAddicted2net says:

    Chrysler Grounds are like our government :D….isn't that the truth since 2020

  41. Avataaar/Circle Created with python_avatars Patriot / Kenneth Burlingham says:

    Awesome job once again Eric.

  42. Avataaar/Circle Created with python_avatars Joe CNC says:

    Nice work! Cut her back to good copper wire, nice new crimp connector, crimp, solder, Fluid Film coat – PRIMO! GM Grounds suck too. I always wire brush them to bare metal, too. But certainly not the technician you are.