Hello jwhad,
Sorry to bug you, but do you know if your truck had a trailer tow package on it? Mine is a 2024 STX with 2.7L engine and does not have tow package but has the factory receiver hitch and connectors. Dealer today tried to install the same TRM and switch as you did, using their Ford factory software (not FORSCAN) and ran into error messages and were not successful completing the installation. I'm trying to figure out what is different about my truck.
Thanks Much!
MandJ

 

Hello ejb69: Sorry to be slow getting back to you! It sounds like the guy you work with may have about the same truck as I do. If you could please let me know the name of the dealership so I can call them and see if they can give me any tips.

You might be lucky on your truck with the 5.0L: I think it might be slightly better equipped for towing. Sounds like your dealer knows how to get it done. I think the parts cost would eat up most of that $400, so probably a good deal to have them install. Also, have to be careful with not voiding your warranty. Thanks for responding!

Mark (MandJ)

 

It’s Dorsch ford of Green Bay. I haven’t looked into doing my truck yet. But , I dropped Scott of at the collision center, which is separate building . Apparently mods and upgrades are done by the collision center and not the repair department. It’s a pretty large dealership for our area. Scott have tried the dealership that he bought his truck from and was told they were over a month out. It took Dorsey over a week to get the parts, but were able to get him in in a couple of days. He left the his truck for a day . Did the early drop off thing . I gave him a ride as Dorsch is is only a couple of miles from my place.


My truck should be easier to do as it’s a xl 5.0 and the brake controller was one of the few factory options available for my truck. There was no tow package in my configuration. Even the 3.73 locking rear end was standard. I am getting a few things done to my F350. It has a few recalls. Windshield gets replaced tomorrow. It has a few recalls. Waiting on parts. I guess Ford is going to replace all the cameras? and there’s something with the seatbelt reminder . Once that’s done zI want to get the brake controller and door key pad on the 150.

 

I followed these steps and it reprogrammed my brand new TRM that came with the slide button as a kit, to be a non trailer brake control module and made the new TRM function like the old one. Since the module was new, I never saved its configuration. Now I am trying to find the new modules as built data to plug back into it. Other wise i am going to have to see if ford can program it accordingly, or spend another $250 on a new module.

 

Thank you ejb69 for the info! I will give them a call and ask if they have any advice on this. Hopefully you will have an easy go with installing on your XL.

 

Thanks azkkn for the further info! Is the original post by scottevision regarding a 2024 F150, or older truck? It seems the programming issues vary per year.

I'll say to all who are dealing with similar issues with trailer brake controllers: It seems ludicrous to me that Ford allows such issues to languish out there, and that relatively simple technology like trailer brake controllers would become such an issue for very new trucks that come from the factory with other tow equipment, in this day and age! It's frustrating that we can't talk to Ford tech officials who can explain the issues and resolutions (or at least it is not apparent how to get ahold of any of them!) Had to get that off my chest!

 

I had to bring my 2023 f150 in to the dealer 4 or 5 times to get the brake controller system to stop acting up. It ended up being the plug at the bumper - corroded wires behind the bump. I kept telling them to replace it, eventually they did and wouldn't you know it, all my issues disappeared! The dealer has a step-by-step process they are apparently required to go through before replacing certain parts.

 

Hello newfrank and thanks for the info! I will look at this and mention it to the dealer when I take it in.

 

MandJ, did you ever get yours installed? I go to my dealer tomorrow to get it installed. I helped them out and found the actual TRM part that is supposed to go in trucks that did not come with a tow package from the factory, or so Fords website says....

 

Hello homerjay84,
I have not yet got it working. The dealership installed a TRM and the dashboard switch but ran into an error over and over again when the software was trying to complete the configuration. The error had to do with making the trailer brake work. The rest of the trailer wired functions check out. They left the equipment in pending more research on how to solve the problem. I have an appointment with their service department in a week and a half, for them to troubleshoot assisted by Ford (national) customer service. The TRM they installed was part number RL3Z-19H332-AA 1X. The original TRM it replaced is part number RL3T-19J295-FB (this is what the truck came with). Does my new TRM match the (part number of the) one you have identified?

I'm holding out hope that they will be able to work this out. An interesting point that came up was it seems some FTE postings above indicate success using FORSCAN. The dealership doesn't use FORSCAN, as they use the Ford factory software that customers don't have access to. I wonder if the Ford software is failing but FORSCAN would make this work? I'm not yet wanting to try and use FORSCAN because I'm afraid of messing something up, and of voiding the warranty. However, it is a thought that FORSCAN might work.

I've said it before but it makes no sense to me that they can't get an OEM trailer brake controller to work on this truck that has a factory tow hitch receiver and all of the wiring for the trailer along with built in software for setting up to tow a trailer. And I'm adamant they put in an OEM one and don't hang an aftermarket one off the dash, independent from the truck's towing software. Hopefully they will get this working soon. Thanks for your response, and please let me know what you find out!
Mark

 

Hello MandJ,

No, that's is the TRM kit (the TRM itself is part RL3Z-19H332-A) my dealer tried last week and that kit is for only truck ordered from factory with any additional Tow Package equipment but less a trailer brake module. I have the same TRM in my truck currently as what yours came with.

The one they are trying tomorrow, is a TRM only, no kit, so it wont include the slider/gain adjuster. RL3Z-19H332-B is the part number for the TRM. This TRM is listed as 2024 F-150 for all trucks equipped with standard tow prep pack, not the 53T prep pack. So basically its for all trucks that come with the class 4 hitch and already have the 7 pin on the back.

I will update you tomorrow if it works but I am very hopeful. You are correct in the dealers not using FORSCAN, they use the proprietary software. I like the idea of FORSCAN myself but in this situation I like haveing my dealer do it as once they load the software up Detroit logs that my vehicle now has a trailer bake controller installed and incase any recalls get issued they know to send me one, where if I bought the parts and did it myself A) they wouldn't know and B) void my warranty as I'm north of the border.

Justin

 

Thanks for quick response homerjay84! I'm not quite following you on the part where the dash slider/gain adjuster is not included. Do you mean you can't use a slider/gain adjuster on this truck, or do you mean it just needs to be also purchased and added? (Maybe you already have this slider/gain adjuster installed and they're just switching out the RL3Z-19H332-A TRM unit you currently have installed with the RL3Z-19H332-B they will install tomorrow?)

Of course, part of my purpose is to have this dashboard control just as the trucks that have it from the factory. It's encouraging to hear that the RL3Z-19H332-B TRM is for trucks without the 53T tow package, as my truck does not have this package. It only has the receiver, wiring, and computer programming to tow. Note my truck is a 2024 STX 4X4 model with the 2.7L V6.

I wish you good luck in getting this done! Please let me know how it works out...
Mark

 

Hey MandJ

The part ending in AA is what they say is a kit, comes with a TRM and the slider. The part my dealer ordered is only a TRM in the package.

They have to install the slider as well so I'm paying for 2 parts instead of 1 kit with 2 parts included in it. If that makes any sense.

My truck is a 2024 XLT 303a package with the 5.0.

 

I meant to ask homerjay84: Do you have the Ford website URL link please where you saw the correct TRM for a truck without the tow package? I can point it to the dealership.

Thanks again!
Mark

 

https://parts.ford.com/shop/en/us/ac...z19h332b?pdp=y

Sadly it's BO'd with not date avail. I was fortunate enough another local dealer had one as they tried to do the opposite install on a truck with a 53T and it didn't work. Hope your dealer can source one. Likely if your dealer punches you VIN in it will say not compatible and this is where I beleive the parts system is wrong.