Will My Trailer Wiring Switch Over From My 2018 Chrysler Pacifica to My 2022 Pacifica?

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Question:

I just moved my hitch from my 2018 pacifica to a 2022 pacifica. Thank you for providing the hitch hardware set. I am having a problem with the wiring harness which I also moved from 18 to 22. I dont have power to running lights. Turn lights are fine. I see the harnesses for the 2 are different. Do I need a new one? Thanks,

asked by: Ben F

0

Expert Reply:

Hello Ben,

Glad you got the new hardware for swapping over your hitch, as you should never re-use the hardware since it stretches over time.

As you’ve noticed, the frame didn’t change between the 2018 and 2022 Chrysler Pacifica, but the wiring did. You’ll need new wiring for it to function properly. The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # TK96FR will work across all trim levels, including Hybrid, Limited, LX, Pinnacle, Touring, Touring L, and Touring L Plus.

What do you mainly use the hitch and wiring for? Hitch mounted accessory, or light towing?

expert reply by: Kate F

0

Ben F.

9/15/2025

Thanks for quick response. I used it yo tow an enclosed trailer

Kate F.

9/15/2025

@BenF My pleasure Ben! If have any other questions, you know where to find us!

Ben F.

9/27/2025

@KateF Unfortunately after I spent the time to remove old wiring harness and installing the new one,I have no power on any of the pins on connector. I have my 12 volts at module and good ground. Looks like module is defective. I am going to pull out tailight tomorrow to see if I have voltage to inputs of module when lights are on. Very frustrating as I need my trailer for work on Monday Ben

Kate F.

9/29/2025

@BenF I am very sorry to hear this Ben, that would be extremely frustrating. You added the fuse to the power line to the battery right? Sometimes we tend to put that fuse down and forget to install it. Did you get things working over the weekend?

Answer 1

If the running lights on the U-Haul trailer were not working when hooked up to your vehicle, then I first recommend testing the 4-Way or 7-Way (whichever you have) and testing the pins with a circuit tester like #PTW2993. Have somebody run through…

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Answer 2

First thing to check is for corrosion on the pins of your trailer wiring connector. Make sure the trailer's 4-way is clean and free of corrosion. Sandpaper fixes this pretty easy. Next try unplugging and plugging in the trailer wiring harness…

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Answer 3

It could be a tow package fuse on the vehicle. Use the owners manual to find the locations of fuses/relays related to the tow package wiring to check them and replace as needed. If the issue is not a fuse or relay then you can test the vehicle side…

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Answer 4

There is a possibility that your trailer light converter has gone bad. Testing it is pretty easy. What you will want to do is test the wires going into the box of the converter box for voltage with a circuit tester like the #PTW2993 to see if there…

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Answer 5

Hey Charles, thanks for reaching out. I will have to STRONGLY discourage you from using an alternate power source for the converter module on your daughters 2021 Pacifica. I know getting the wire to the battery can be a pain, and we actually get this…

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Answer 6

Start off by making sure you connected the tail/running lights to the appropriate pin on your trailer's 4-Way or 7-Way depending on what kind of connector you have. For a 4-Way the pin should be the brown colored wire. This will also be the pin…

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Answer 7

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 8

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 9

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 10

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 11

The main difference between the Curt Trailer Hitch Receiver part #C13416 and the EcoHitch Hidden Trailer Hitch Receiver part #EH97FR is that the EcoHitch has a completely hidden cross tube whereas the Curt cross tube will be visible from the rear of…

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Answer 12

Hi David! There are quite a few hitches offered for your 2026 Honda Odyssey, so I definitely understand wanting to know the differences. There are basically three styles available for you and I have them broken out below: Exposed Crosstube: etrailer…

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Will My Trailer Wiring Switch Over From My 2018 Chrysler Pacifica to My 2022 Pacifica?

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