P3 Brake Controller Will Not Turn On and It Shuts Off Dash Lights When Plugged into 2011 Ford F-150
Updated 03/27/2015 | Published 03/26/2015
Question:
I installed the P3, but the led wont light up , and all my intraments turn off in the dash? Any advice? Only happens when i plug in the P3
asked by: Brandon
Expert Reply:
We need to make sure you are using the correct brake controller wiring harness for your 2011 Ford F-150 and that the red wire is in the right location in the plug that plugs into the vehicle.
You should be using # 22292. I have included a picture that shows the truck end plug and where all the wires should be in it. Make sure yours matches.
If you happened to use a Ford factory brake controller harness and if you wired in the P3 wires color for color, that could also be the problem. On the brake controller, white is ground, black is 12 volt power in, red is input from brake switch, and blue is output to the trailer brakes.
If the connector where the controller plugs in or the brake controller connector has bent or broken pins, that could be causing a short so you will want to check that as well.
