Installing Factory Trailer Brake Controller and DIY Software Update

[HSKR R/T]

I am trying to piece together an OEM trailer brake controller... but lots of non OEM stuff is popping up on Amazon and questionable stuff on ebay.

has anyone tried the aftermarket ones that appear to be knock offs of the OEM? While this has the Mopar labels, this can't be legit, right?

Pardon Our Interruption...

not branded
Amazon.com

is this too good to be true? it still needs to be programmed at the dealer or the methods described in this thread.

This tells you it's not legit

 

[azzx]

Dont buy the crap off ebay or amazon. I tried them and they are all wrong for 2025.

 

[msnyder1112]

I was looking for specific site as I've got burned buying online before,but thanks anyway

Any mopar parts dealer.
Mopar parts giants
My mopar parts.
Mopar factory parts.
Mopar online parts.

They are all dealerships that sell parts.
Google search brings up hundreds if results.

Fyi these places ship extremely slow as they have to order the parts then ship them to you.

 

[Arthur W]

Is this the same for a 2022 1500 laramie?

 

[Arthur W]

Great information, Thanks for sharing. I just ordered a factory brake controller kit with the software programmer from Infotainment. It's $450.00 now for my 2022 Ram 1500. But it's everything in one kit. Dealership wants $469.00 for just the parts. No software or anything.

 

[GMetal]

I installed this setup and programmed it with the AlfaOBD tool. Lately I've been getting the service trailer brake screen pop up when starting and sometimes when driving. I scanned for codes and didn't find anything. Anyone experience this?

 

[2025 Ram Limited]

Great and hilarious write up! You would think this module would come standard on a truck, especially for the price we pay nowadays. Mine didn't come with it and I'm kicking myself for it now.

 

[22Ram1500InAR]

Here is what I did from old post.

Post in thread 'Installing Factory Trailer Brake Controller and DIY Software Update'
Installing Factory Trailer Brake Controller and DIY Software Update

 

[Ryan-B]

Step 11: Software Update using AlfaOBD
Follow all steps to sync your phone/tablet/computer to the Bluetooth/wifi device that you are using (your OBD2 reader, and again I recommend that BAFX one because it worked for me)
View attachment 31430

Locate the FCA Security gateway plugs, disconnect them, and plug them into your bypass module. They are driver side to the left of the steering wheel under the dash.
View attachment 31431
View attachment 31433

Now, turn your truck on (remember that you disconnected the battery earlier, and one of the "put it back together implied steps" was to reconnect it)
Open your AlfaOBD app
Select the type of interface you are using and find your device.
Connect to your (OBD Reader) device
Select RAM from the OEM options
Select Ram 1500 from the 1st dropdown
Select Body Computer from the 2nd dropdown
Select Central Gateway Module from the 3rd dropdown
Select connect
Once connected click on the little car with the hood up and navigate all the way to the bottom of this menu
Select "Car Configuration Change"
In the next menu you will need to make the following changes one at a time. Be sure to validate that the change was made by selecting each option and seeing what it is set at according to AlfaOBD after you set the option. The options you need to change and the values for them are as follows:
ITBM/HWM Integrated Trailer Brake Module: Change to "ENABLED"
Trailer selected CSM: Change to "Yes"
Trailer name CSM: Change to "Yes"
Trailer type CSM: Change to "Yes"

/*The information about the settings and the idea that I could do the software update on my own are courtesy of member downsjh*/

My dash display updated immediately and I was able to see the trailer information. Some people have stated that theirs took a few minutes. Your mileage may vary. Turn your truck off, remove your OBD2 reader, and I recommend removing the gateway module bypass.

Now you should have a fully functioning trailer brake controller and 0 trips to the dealership!


View attachment 31435
View attachment 31437

Thank you for your time. I hope that this helps someone save a few pennies like it did for me. If you have anything you would like to add, or steps that I missed (it is possible, I am part gorilla) please feel free to let me know. I am not a mechanic by trade, just by hobby, so go easy on me please

My 22 ram wasnt listed, it was under some crazy name. I dont remeber what but after searching and trying different ones i found it and got it programmed. Just in time to pick up my fifth wheel xamper tomorrw.