Trying to add a trailer brake controller 2025 f150 lightning

[pancho]

I have a 2025 f150 lightning lariat need to add a brake controller I added kit number RL3Z-19H332-AA and activated it on forscan (following a youtube video lol) and the trailer brakes and all adjustments work great but... shows an alert on my dash for service trailer brake system (something like that) I cant remember the exact alert but it pops up everytime I start the truck. I put the oem module back under the dash and no longer get the alert but the brake controller doesnt work... did I program it wrong? Or is that module not compatible with the 2025? Please help if I need to order a new module im ok with that if someone can point me to the correct part number? Thank you!

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[pancho]

I also get codes for communication failure between the transmission control module and 3 other Modules. thank you

 

[JMD359]

I also get codes for communication failure between the transmission control module and 3 other Modules. thank you

Did you rename the new module with the numbers from the old one ? I know of the computer sees a different number you get the alert . I would Try renaming the new module w the old one’s numbers

 

[RLXXI]

FDRS programmable module installation function.

 

[pancho]

Did you rename the new module with the numbers from the old one ? I know of the computer sees a different number you get the alert . I would Try renaming the new module w the old one’s numbers

Im new to forscan so im not sure how to do that im on forscan now

 

[Sam_oceans]

I have a 2025 f150 lightning lariat need to add a brake controller I added kit number RL3Z-19H332-AA and activated it on forscan (following a youtube video lol) and the trailer brakes and all adjustments work great but... shows an alert on my dash for service trailer brake system (something like that) I cant remember the exact alert but it pops up everytime I start the truck. I put the oem module back under the dash and no longer get the alert but the brake controller doesnt work... did I program it wrong? Or is that module not compatible with the 2025? Please help if I need to order a new module im ok with that if someone can point me to the correct part number? Thank you!

I tried the same thing and Ford dealer eventually told me that my Lightning Lariat standard battery pack without pro-trailer package was not compatible. I ended-up buying a Curt Bluetooth trailer break for $350 CDN. and it works perfectly.

 

[pancho]

FDRS programmable module installation function.

Cannot it not be done with forscan?

 

[RLXXI]

Cannot it not be done with forscan?

Maybe, I don't know.

 

[pancho]

Im new to forscan so im not sure how to do that im on forscan now

 

[JackFlash]

I tried the same thing and Ford dealer eventually told me that my Lightning Lariat standard battery pack without pro-trailer package was not compatible. I ended-up buying a Curt Bluetooth trailer break for $350 CDN. and it works perfectly.

I've done the same and it works really great. I had actually bought it for a previous tow vehicle and now use it with the Lightning.

 

[Ish]

I had a dealer attempt to install and had the same issue so I had to go aftermarket. Ford changed something with the ‘24 and ‘25 MYs so it doesn’t work.

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