Issue with Turn Signal Lights out after installing OEM LED Lights

[Tupper]

Hi All,

I purchased my 2023 Rubicon JT in October 2023 and it had most of what I wanted on it at the dealer, with the exception of the LED lighting package, AUX switches and the power in the bed. Since then I have installed the AUX switches, power in the bed, OEM LED headlights, OEM DRLs, I installed the Rubicon steel bumper/w the LED fog lights, and finally the Oracle tail lights. Initially, I installed everything but the taillights and then took my JT to the dealer to have them add the sales codes for the lights, as well as the power outlet in the bed, and the AUX switch (I installed everything myself, but the dealer as part of the sale agreed to update the sales codes - provided below). Everything worked, but I am getting the the "turn signal lights out" error. I took it back to the dealer and they are not sure why I am getting the error, and since they didn't install the lights they are not sure why I am getting the error. All the lights are working, for the most part, though the tail lights don't seem to work all the time. I was not sure why this way happening, and from my research on this forum prior to installing everything and since, I thought that maybe because I had originally left the halogen tail lights on my JT and that might have been causing the error. So I installed a set of Oracle tail lights (removing the little resistor, since I have LED lights). I continue to receive the same error, but now I am getting am occasionally receiving an error with the tail lights.

I bought the OBD Link MX+ and the JSCAN program just in case I need to do something to adjust the settings, but before I do anything I wanted to see what folks think. I had thought by having the dealer put in the sales codes I would be good, but clearly not. So I am a bit confused on what to do next.

Thanks much for the help!

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[Hootbro]

I have to say, your first paragraph is a bit bunch together and hard to follow.

That being said and if I am tracking on it right, I would recommend you use your JScan setup and verify the BCM changes the dealership supposedly should have made when they added the sales code.

 

[PuddleJumper]

when u get the led headlights put in and change the vehicle status to have LED oem headlights it has to have LED turn signals and driving lights as well. I have a Tazer mini JL and it'll let me program to have LED headlights but when selected cus i thought hey i'm running led bulbs now, my blinkers nd DRLs stopped working. I switched it back to halogen profile and they work again. Maybe try getting Lasfit LED bulbs for the drls and turn signals. Im sure it has to do with expected impedance by the chassis ECM.

 

[DailyDrivenTJ]

when u get the led headlights put in and change the vehicle status to have LED oem headlights it has to have LED turn signals and driving lights as well. I ...

Wrong.

I am sorry for bringing this back from the dead, but as we accumulate knowledge base for the later owners, I feel it is imperative to accumulate "correct" information.

I have OEM LED headlights that are retrofitted with halo activated on my 2023 JTRD which currently has halogen turn signals functioning perfectly fine and it has been past 7 months without any error code.

I am actually looking for OBD/BCM setting for OEM led lights and ran into this post. I just wanted to provide correct information.

 

[PuddleJumper]

Wrong.

I am sorry for bringing this back from the dead, but as we accumulate knowledge base for the later owners, I feel it is imperative to accumulate "correct" information.

I have OEM LED headlights that are retrofitted with halo activated on my 2023 JTRD which currently has halogen turn signals functioning perfectly fine and it has been past 7 months without any error code.

I am actually looking for OBD/BCM setting for OEM led lights and ran into this post. I just wanted to provide correct information.

This may also be from new updates over air though. Your condition may be may be true for almost everyone now but a few months ago wasn't or at least not for older gladiators. Thanks for the update however. At least we can assume with a good amount of certainty that led turn signal assy are not required anymore.

 

[DailyDrivenTJ]

This may also be from new updates over air though. Your condition may be may be true for almost everyone now but a few months ago wasn't or at least not for older gladiators. Thanks for the update however. At least we can assume with a good amount of certainty that led turn signal assy are not required anymore.

LOL. Wrong again.

I got nothing against you BTW. I am just passionate for proper information being disseminated as wrong information is not helpful and second, it actually misleads people and wastes people's time.

My 2023 never had OTA update. On top of that, the FCA stopped doing OTA at least for the newer models. UConnect stopped doing updating their website and it even spits out wrong information when you put in the VIN.

The OP also has 2023 purchased on October 2023. I purchases mine Novermber 2023.

I researched on this topic as I need to install OEM Turn signals myself for the past weekend.

The actual problem is the Pin 1 fault detecting signal wire is not present on halogen equipped vehicles. So when you just plug in the OEM LED turn signals, there is wire mismatch on Pin 1, hence the BCM thinks that there is issue with the light.

OTA simply has nothing to do with this issue at all.

The work around is you are supposed to Depin Pin 1 on the OEM LED harness to prevent the wrong signal traveling back into BCM. This will prevent error code from appearing.

or

You route the Pin 1 wire back into BCM. Too much work IMO and I am not sure if anyone had tried this option or documented anywhere.

HTH someone.

 

[PuddleJumper]

LOL. Wrong again.

I got nothing against you BTW. I am just passionate for proper information being disseminated as wrong information is not helpful and second, it actually misleads people and wastes people's time.

My 2023 never had OTA update. On top of that, the FCA stopped doing OTA at least for the newer models. UConnect stopped doing updating their website and it even spits out wrong information when you put in the VIN.

The OP also has 2023 purchased on October 2023. I purchases mine Novermber 2023.

I researched on this topic as I need to install OEM Turn signals myself for the past weekend.

The actual problem is the Pin 1 fault detecting signal wire is not present on halogen equipped vehicles. So when you just plug in the OEM LED turn signals, there is wire mismatch on Pin 1, hence the BCM thinks that there is issue with the light.

OTA simply has nothing to do with this issue at all.

The work around is you are supposed to Depin Pin 1 on the OEM LED harness to prevent the wrong signal traveling back into BCM. This will prevent error code from appearing.

or

You route the Pin 1 wire back into BCM. Too much work IMO and I am not sure if anyone had tried this option or documented anywhere.

HTH someone.

Ok, that makes sense on the light aspect. Idk why jeep wouldn't keep the wiring exactly the same and just program for different configs (as I originally thought they did) (also makes Tazer and J scan no longer a one stop deal for updating light configs).

As far as over the air update. I know for a fact I still get some. I from time to time can watch in the bottom left of my radio display watch it pull script and declare a download and the rate at which it is downloading. This may be SiriusXM related service and not Uconnect as well tho. I also have service turned on in my vehicle so that may be another aspect to why i may see some type of update vs you or someone else.

Also I'm not a pansy, I have no issue being told I'm wrong. I'm aware that there is more of what i don't know vs what i do know. And a lot of what people do know is just speculation on experiences ( not exactly reliable but we are all human, its how we run.) I do however prefer full reasons as to why I'm wrong. If I'm gonna be wrong I wanna know why otherwise nothing is learned. So I pursue dialog that will produce said reasons. What's the saying? "The quickest way to get the right answer on the internet is post the wrong answer, not the question".

Anyway. Thanks for the clarification and knowledge. Sucks that the solution is a bit more involved than everyone wanted.

 

[JLM007]

A lot of good information here. Thanks. I'm considering upgrading my 2020 Sport S headlamps to OEM LED. I understand that will require the addition of the wiring harness and reprogramming in JSCAN. My question is related to the turn signals - can I get away with just swapping in LED bulbs there (and for the fogs) rather than trying to track down the OEM turn signal/DRL full housings? Just want to make sure I don't run into any issues with this setup.

 

[Jtfire35]

LOL. Wrong again.

I got nothing against you BTW. I am just passionate for proper information being disseminated as wrong information is not helpful and second, it actually misleads people and wastes people's time.

My 2023 never had OTA update. On top of that, the FCA stopped doing OTA at least for the newer models. UConnect stopped doing updating their website and it even spits out wrong information when you put in the VIN.

The OP also has 2023 purchased on October 2023. I purchases mine Novermber 2023.

I researched on this topic as I need to install OEM Turn signals myself for the past weekend.

The actual problem is the Pin 1 fault detecting signal wire is not present on halogen equipped vehicles. So when you just plug in the OEM LED turn signals, there is wire mismatch on Pin 1, hence the BCM thinks that there is issue with the light.

OTA simply has nothing to do with this issue at all.

The work around is you are supposed to Depin Pin 1 on the OEM LED harness to prevent the wrong signal traveling back into BCM. This will prevent error code from appearing.

or

You route the Pin 1 wire back into BCM. Too much work IMO and I am not sure if anyone had tried this option or documented anywhere.

HTH someone.

Thanks for the info I am about to install OEM led Turn signals on my JTRD. So I just need to pull pin 1 got it. Headlights and halos worked great of course had to add new harness to Passenger side for Halo to work.

 

[DailyDrivenTJ]

A lot of good information here. Thanks. I'm considering upgrading my 2020 Sport S headlamps to OEM LED. I understand that will require the addition of the wiring harness and reprogramming in JSCAN. My question is related to the turn signals - can I get away with just swapping in LED bulbs there (and for the fogs) rather than trying to track down the OEM turn signal/DRL full housings? Just want to make sure I don't run into any issues with this setup.

I am sure you can just get halogen replacement LED bulbs. Let us know how it goes!

 

[DailyDrivenTJ]

Thanks for the info I am about to install OEM led Turn signals on my JTRD. So I just need to pull pin 1 got it. Headlights and halos worked great of course had to add new harness to Passenger side for Halo to work.

Diesel is slightly easier as it has part of the halo wiring already done. You just need that 1 wire on the passenger side and luckily there is part number for that short segment of wire bundle.

 

[Jtfire35]

Diesel is slightly easier as it has part of the halo wiring already done. You just need that 1 wire on the passenger side and luckily there is part number for that short segment of wire bundle.

Yeah Daily it was pretty easy. Is that the same wire bundle that I had to install for my headlights only on the passenger side of course. It was like a 5 min fix. Part number 68414409AB. Or is it a another one I need of the side markers.

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