Integrated Trailer Brake Controller 2025 RAM 1500

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Dirtybike

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Joined
Mar 17, 2025
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Location
Tomkins Cove, NY
Ram Year
2025
Engine
3.6L V6
I would like to add a trailer brake controller to my 2025 RAM 1500 Bighorn Quad Cab.
Inquired at the dealer, and the price for the ITB kit was high but acceptable. The installation was twice the cost of the kit, bringing the installation over $1k. A bit much for me.
What are my alternatives?
- Bite the bullet and pay the $1k
- Find an aftermarket unit? I expect that they install similar to an older type. Just need to find 12v to trigger and 12v to power, I think. Any issues with aftermarket, like annoying, constant alerts? Will it void my warranty?
- Install the kit myself. Programming would be the issue. Will the brakes function correctly without the programming, only losing the information on the screen.
Aftermarket OBD programming?

I assume that these questions have been asked and answered, but my searches bring up pre-2025 model years.

Thanks
 

davesue4b

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Sep 6, 2025
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Location
Illinois
Ram Year
2022
Engine
6.4
2022 Ram 2500 my factory brake system failed, I purchased a Autowbrake controller from E-Trailer. I really like this system. Hooks directly to the trailer, bypass,s the truck.
 

stevenP

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Nov 9, 2014
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Location
northern Indiana
Ram Year
2022 2500 Longhorn
Engine
6.7L Cummins
No body want to speak of such things, but when I had several of the RVs my IBC with some of the new units didnt work very at all. So I by passed the internal IBC in the truck and added a Tekonsha P3 under dash unit. Worked outstanding with every thing I used it on. With the correct pigtail, for your truck it... installed in 15 minutes and was idiot proof.
 

Spud66

Junior Member
Joined
Oct 16, 2021
Posts
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Location
Bear, DE
Ram Year
2018
Engine
Cummins
Been researching this There is supposed to be the old style plug there and not sure if a program bump is required. Curt pn #51446 for 2025. 2025 is different per dealer and when I bought truck it was with dealer installing the kit for in dash TrlrBrkController The IBTC module is in the rear behind back seats and a module gets installed and a cable added and pins pushed into existing pin locations. Looks easy . Kit is on back order and pn is well I just decided to cut/paste the info I found. One more point before you jump below. There is an interesting etrailer video on youtube that shows the #51446 being plugged on left side under dash by Ebrake. It looks that simple and makes no mention of software upgrade.... Im calling Etrailer support tomorrow just to know but am awaiting dealer to appropriate and install. If I head down to FL I will need a temp solution.

============= per ChatGPT below============
Asked about 2025 Limited with 12" tft and no brake controller module (per dealer it aint there) 2025 is the intro of new canbus .

What Applies to a 2025 Ram 1500​


  • The part Mopar Integrated Trailer Brake Module 82219240AB is specifically listed for 2025-2026 Ram 1500 DT. moparpartscorp.com+2Mopar Parts+2
  • According to Mopar / parts listings, this AB version replaces the older 82219240AA. moparoriginalparts.com+1
  • It is designed for trucks with the 8.4″ or 12″ UConnect 5 touchscreen. moparoriginalparts.com
  • It is not compatible with the 14.4″ (“RHZ”) screen; for those trucks, a different part (82219232AA) is indicated. Mopar Online Performance
  • Before ordering, you must check under the left side of the steering column to confirm your truck has both 4-pin trailer-brake module connectors. moparoriginalparts.com+1
  • Dealer programming is required for this kit: you need to add the sales code “XHC” so the vehicle’s computer recognizes the module. Mopar Genuine Parts+1



Why AB Instead of AA for 2025​


  • The AB part is the current / correct OEM version for newer architecture, hence used on 2025 trucks. dodgeparts.com+1
  • The older AA version is “replaced by” AB. moparpartscorp.com
  • Using AA on a 2025 may not work / be supported, depending on the truck’s wiring and electronic architecture.
 
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