Is There A Custom Harness To Plug A Tekonsha P3 Into A 2012 Ram 3500?
Updated 08/06/2025 | Published 08/04/2025
Question:
I have a Tekonsha P3 brake controller that I want to put in my 2012 Ram 3500 because my Integrated brake module stopped working. I am wondering if you all sell a plug and play harness that would let me plug into the Tekonsha? Would I need to do anything else to get this working?
asked by: Clifton S
Expert Reply:
We most certainly do, Clifton!
The Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - Dodge # 3021-P will plug directly into the back of your Tekonsha P3 # 90195 and then into a port up under your dash, kind of between the brake pedal and the emergency/parking brake pedal (see picture). Then just mount the controller and you are on your way!
Out of curiosity, did your P3 come out of another vehicle you have?
(click to enlarge)
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Clifton S.
8/6/2025
Yes. I bought it about 5 or 6 years ago and stopped using the vehicle. I figured I still had the P3 in there so instead of spending a bunch of money on a new Integrated Brake Control Module (I believe The ECM would need to be reflashed to recognize it. Not 100% sure though) I would actually put the P3 to work. Thanks for the help!!!