Parking light fuse

[Dyolfknip74]

Does anyone know which fuse controls parking lights? It isn't F26 or F29. I've tested them.

I tapped into passenger side months ago to run a plate light. Today putting plate relocate on I crossed light wires and it popped the fuse. But I don't see any other lighting fuses except the two mentioned above.

Edit. I swapped the tails and it isn't the light itself. Passenger parking light works fine on driver side.

Thanks.

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[JimLee]

Does anyone know which fuse controls parking lights? It isn't F26 or F29. I've tested them.

I tapped into passenger side months ago to run a plate light. Today putting plate relocate on I crossed light wires and it popped the fuse. But I don't see any other lighting fuses except the two mentioned above.

Thanks.

https://www.jlwranglerforums.com/JL-Wiring-Diagrams/PARK-LAMPS-SYSTEM.pdf

Check 20 & 28

 

[Dyolfknip74]

https://www.jlwranglerforums.com/JL-Wiring-Diagrams/PARK-LAMPS-SYSTEM.pdf

Check 20 & 28

I did. Metered and tried using spares. No joy.
Any other ideas? That diagram looks like it is attached to 20, 26, 28 ,29. I checked them all with a meter and using spares.

 

[JimLee]

I did. Metered and tried using spares. No joy.
Any other ideas? That diagram looks like it is attached to 20, 26, 28 ,29. I checked them all with a meter and using spares.

Sorry to say it, but you may have fried the circuit board in the taillight, or the BCM, I'm thinking the taillight because usually if you fried the BCM you would see a bunch of other issues. You got anyone that would let you swap in a taillight? Make sure all your connections are good and no shorts before hooking up a new taillight though.

 

[Dyolfknip74]

Sorry to say it, but you may have fried the circuit board in the taillight, or the BCM, I'm thinking the taillight because usually if you fried the BCM you would see a bunch of other issues. You got anyone that would let you swap in a taillight? Make sure all your connections are good and no shorts before hooking up a new taillight though.

Ya, I was thinking that. I saying that, that is crazy sensitive if that's the case. What's the point of having a fuse? Lol.

Can I use my driver's side one and connect it up to test?

 

[JimLee]

Ya, I was thinking that. I saying that, that is crazy sensitive if that's the case. What's the point of having a fuse? Lol.

Can I use my driver's side one and connect it up to test?

I'm not sure if it's the same connector, but it's certainly worth a try.

 

[Dyolfknip74]

I'm not sure if it's the same connector, but it's certainly worth a try.

I'll look tomorrow. If that small amount of current popped the LED, thats incredible. The brake light still works, just the park light is out, which is the wire I'm tapped into. Doesn't make a lot of sense.

 

[Dyolfknip74]

I'm not sure if it's the same connector, but it's certainly worth a try.

Ok, I did it. It isn't the tail light. It works on driver side and driver doesn't work on passenger side. I'm still thinking it's a fuse. Just no clue which one.

 

[JimLee]

Ok, I did it. It isn't the tail light. It works on driver side and driver doesn't work on passenger side. I'm still thinking it's a fuse. Just no clue which one.

https://www.jlwranglerforums.com/forum/threads/jeep-jl-wrangler-wiring-diagrams.19185/

Here's the other diagrams, but I can't find any other fuses that would go to the parking lights. Also, if you hadn't noticed, all the fuses already checked go to the BCM, not directly to the lighting system. There's a driver for each of the lights in the BCM so any short would have to travel through that. I think the fuses are just protection for the BCM, not for the lighting after the BCM.

 

[Dyolfknip74]

https://www.jlwranglerforums.com/forum/threads/jeep-jl-wrangler-wiring-diagrams.19185/

Here's the other diagrams, but I can't find any other fuses that would go to the parking lights. Also, if you hadn't noticed, all the fuses already checked go to the BCM, not directly to the lighting system. There's a driver for each of the lights in the BCM so any short would have to travel through that. I think the fuses are just protection for the BCM, not for the lighting after the BCM.

Yes, I found that as well but nothing really in there. Kind of irritating. I can't even bring it to dealer because they won't have a clue either.
I sent Oracle a DM to see if they had seen it before.

 

[JimLee]

Yes, I found that as well but nothing really in there. Kind of irritating. I can't even bring it to dealer because they won't have a clue either.
I sent Oracle a DM to see if they had seen it before.

Digital electronics and busses on vehicles have a lot of advantages, and unfortunately disadvantages as well. I personally try to avoid tapping into any of the factory wiring on newer vehicles if I can avoid it. It takes very little juice to fry these computers if it is sent down the wrong line, or at lest fry something that the user cannot change at home. I hope Oracle has some magic for you that we've overlooked.

 

[Dyolfknip74]

Digital electronics and busses on vehicles have a lot of advantages, and unfortunately disadvantages as well. I personally try to avoid tapping into any of the factory wiring on newer vehicles if I can avoid it. It takes very little juice to fry these computers if it is sent down the wrong line, or at lest fry something that the user cannot change at home. I hope Oracle has some magic for you that we've overlooked.

Ya, hindsight 20/20 and all. It isn't seems odd. The amount of current that plate light was drawing was miniscule. I have a hard time believing anything would be that sensitive in these vehicles. In saying that, electronics can be a bear to troubleshoot.

 

[JimLee]

Ya, hindsight 20/20 and all. It isn't seems odd. The amount of current that plate light was drawing was miniscule. I have a hard time believing anything would be that sensitive in these vehicles. In saying that, electronics can be a bear to troubleshoot.

If we had some decent schematics that show whats going on inside of the module it would be much easier, but Ive looked before and haven't been able to find any. I actually work in electronics, but without all the data it becomes a best guessing game.

 

[Dyolfknip74]

Ok all, I'm glad to say I figured it out. It occurred to me that the shitty little plate light might still be shorted. So I went out, tore it off. The problem was still there. So I started the jeep up and it reset the fault and good to go.

I'd like to thank @JimLee for his help. I'm an electronics tech but it's always nice to have extra eyes when dealing with shitty schematics and odd electrical problems.

 

[jeffm1999]

I found this PDF of the Park lamp system that may help as I too need to find the fuse that controls the "Dropout" park lights.

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