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For those with the factory installed Trailer Tow package:
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Sadly, no Aux switches, which was another bummer, but willing to live without that. I'll check my VIN now and report back. Thanks for the reply!@khemist000
Need to know if your JLU did have the tow harness installed at the factory.. My guess is it did not.
You say your 2018 JLU "supposedly came with the factory tow harness " .... Does your JLU have the 4 Aux switches on the dashboard that come with the factory tow package? If it does then you JL, did leave the factory with the factory installed tow package.
Please post back if you have the Aux switches..
A n easy way to tell what exactly your JLU left the factory with is to click on this link and when you get to to the next page, just go and add your VIN# to the URL and then hit enter.
Your Equipment List will tell you what all you have in your build. It will list the tow package if your JL had the tow package installed at the factory.
https://www.jeep.com/webselfservice/BuildSheetServlet?vin=
@khemist000Seems like a no on the VIN check .
Should I install these fuses myself?
I'm now pretty nervous about killing the electronics with the trailer. Also really need to track down the issue. The magnetic temporary lights will be our stop-gap for the season if the dealer can get those working, but I would love to get the 7 pin socket working correctly. I can't imagine the issue is trailer side since it worked fine with our Juke (and fine with the previous owners car) AND we just had the trailer inspected in February (I'm guessing they checked wiring and proper grounding, etc but I'm just assuming here).
I've got an appointment next Tuesday to get the jeep looked at, but I'm just curious for my own education and understanding of our new vehicle. Loving it otherwise!
Gotcha. Yeah, I thought the harness was factory so since it's not, I have no idea when, how, or by whom it was installed.@khemist000
NO, you do not want to place those fuses!
Since your tow harness since it is not a factory installed tow harness/package does not use those fuses in the power distribution center(PDC).
IF you indeed have the Mopar harness installed by self or the dealer (not factory installed), then the fuses for them are not in the PDC.... the relays in regard to your tow harness are in a small box mounted on the firewall by the brake booster on the driver's side...... the fuses are in small inline fuse holders hanging from the harness wires coming from the small box mentioned. You should find the harness running along the top of the firewall going towards the passenger side.... the fuses should be more towards the passenger side.
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