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F-150 Door Ajar, Speaker and Window Electrical Problems Solved With a New Wiring Harness

F-150 Door Ajar, Speaker and Window Electrical Problems Solved With a New Wiring Harness

The 2011-2014 Ford F-150 was one of Fords most well built trucks, however there is a really annoying weakness in the Front and  rear door wiring harnesses.


The Original Problem 


After a few years of flexing upon opening and closing, the wires began to break off at the terminal plug. 



When these wires break it can cause issues such as:

  • Door Ajar light
  • Window Up / Down issues
  • Speakers Crackling or not working at all 
  • Heated seat failures in the rear seats.

This is not a complete list of issues. If you know of more let us know!


The Solution

Luckily the Engineers at Ford wasted not time in making a new improved version of the harness. The new version of the harness is made much better, and is much more resistant to the wires becoming brittle and breaking at the terminals. 

See the plug ends in the Video below 


Please Do Not Attempt To Install This In A 2010 Model. The Harness Looks The Same But The Pins And The Associated Wiring Are Different. Installing In 2010 Will Cause Major Electrical Problems And Damage.

Important Note. There are a few F-150s that have a different wiring harness where there is no plug, It is one solid wire harness from the door panel into the truck body. This is extremely rare and only a few thousand trucks were built like this,  but we suggest you look at the wire to be sure you have the big plug as shown in the pictures. If you don't have the big plug this will not work for you. Ford built random trucks using the plug-free harness at completely random times during 2011-2014, there is no way to know which type you have without looking to make sure yours has a plug. 

Wiring Diagram 

For you Techies out there, here is a wiring diagram that shows exactly how this harness interfaces with the BCM.




Luckily Replacement is easy, Most of our customers have the job don in about 10 minutes.

The new harness Contains all of the correct wires, pins, terminals and plugs, making replacement a plug and play snap!

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