Troubleshooting A 2011 RAM 2500 Giving a Service Trailer Brake System Error

Updated 06/20/2023 | Published 06/18/2023

Question:

Installed the p3 with harness on 2011 ram 2500. Works great! I do still get a service trailer brake system warning on the dash. Is there something else to do to remove the warning?

asked by: Bruce L

Expert Reply:

I did some research and it turns out that this error is fairly common amongst RAM owners. What this error is saying is that there is a problem with the ITBC (Integrated Trailer Brake Controller) system.

My guess is since you're using an aftermarket brake controller and not the OEM brake controller the system might be a bit "confused" for lack of a better term, especially since the brake controller is working just fine.

I'd recommend taking it to a local RAM dealer and see if they can get the error to disappear. I assume they'll just flash the system and you'll be good.

expert reply by: Bryce D