Troubleshooting CF Error Code on Factory Brake Controller of 2012 Ram 1500

Updated 02/21/2024 | Published 02/09/2019

Question:

My truck has factory wiring harness and factory controller. This is the first time ive used the 7 pin plug. All lights and signals work. Brakes will work with manual override but not with pedal. Also have a CF ! error on the brake controller display. When trailer is not connected

asked by: Don

Expert Reply:

CF on the dash of a 2012 Ram 1500 with the factory electric brake controller indicates "computer fault" and typically means the wiring isn't making a solid connection somehow but it can also indicate a problem internal of the factory controller. I'd check all trailer wiring and third brake light fuses first but then if that does not fix it you'd want to take it to a dealer to see if they can address the internal problem.

expert reply by: Jameson C

Jack B.

7/19/2020

The integrated brake on my 2014 dodge diesel 2500 is not sending any current through the plug. Is there a fuse which controls this and if so which one is it and where is it located? The control seems to be working and it recognizes the trailer being hooked up.

Chris R.

7/23/2020

There would be a fuse for 12V power to the brake controller, but not one that's actually related to its operation. Basically if the brake controller turns on I don't think this is a fuse issue. There's likely some damage on the brake output wire somewhere between the controller and 7-Way. With a factory setup this is going to be hard to track down, so your best option may be to bring the truck up to a local Dodge dealer. Another option would be to bypass it completely with an aftermarket controller like the Curt Echo # C51180.

Jack B.

7/23/2020

@ChrisR