No Power To Brake Output Pin On 2014 Ford F-150

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Question:

I have f150 with 7 prong rv hook up I have no power from truck to the trailer brakes, problem seems to be in the truck?? was working the last time I hooked up Thank you

asked by: Julie M

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Expert Reply:

The first thing that I recommend you do to test the brake output circuit on your 2014 Ford F-150 is turn the power settings up to max on the brake controller, have a friend apply the manual override, and test the 1 o'clock pin on the 7-way. If you don't get 12 volts then you will need to sever the brake output behind the brake controller and test again for power with the manual override applied at full power. If you don't get 12 volts then replace the brake controller. If you do get 12 volts then there is a wire short between the brake controller and trailer plug.

If you get 12 volts on the brake output circuit of the trailer connector then you have an issue with the trailer and you will need to first trace the wire back to the assemblies to see if shorts are found but also don't forget to check the pins inside the plug.

expert reply by: Conner L

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Answer 1

I can help you convert your 4way to a 7way on your 2014 Ford F-150. Since your vehicle is equipped with a factory 4way plug you will first need the Curt harness #C56110. To get a 7way for your trailer needs I recommend an adapter like the #ETBC7.…

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Answer 2

Factory wiring could be any color since there is no one standard that all manufacturers follow. You will need to test the wires by function using a circuit tester such as #PTW2992 if you do not already have one. I have included a picture that shows a…

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Answer 3

There are many things that can affect the voltage on the brake output wire from your brake controller to your trailer brakes such as the power setting on your brake controller, how you are testing the wire and if you are testing it with the brakes or…

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Answer 4

The only difference between 7-Way Utility and 7-Way RV is the color of the wires. The pin outs are the exact same so either would work just fine with the other. If you check out the picture I attached you'll see that the functions are all the…

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Answer 5

It's a wire color difference but not a function difference on the pins of the 7-way. The difference comes from the fact that the two different styles are representative of two different areas that uses trailers. Traditional is usually seen on…

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Answer 6

You are correct, you should only be getting output when the brake is applied, or the override switch is activated. It sounds like the controller might be bad, but to make sure, you should probably bench test it before tossing it. Use a circuit…

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Answer 7

We have the Light Buster Backup and Utility Light for 7-Way RV Style Connectors #C8020 which plugs into the 7-way trailer wiring connector you have at the rear of your vehicle and will give you a brighter lighting when backing up at night.

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Answer 8

As we do not carry the Lippert brakes, I cannot say for sure what is going on as I have not had the chance to mess with them before. However, if you had say an etrailer.com Left Hand Self-Adjusting Electric Trailer Brake Assembly #AKEBRK-7L-SA, I…

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Answer 9

To determine the correct wiring for your trailer you will need to use a circuit tester, item #PTW2993, and attach the wires from the connector by function only. The light wires should be as follows, red is the stop turn wire and the black is the…

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Answer 10

The fact that the brake light is not working makes me think there is a ground problem which could also be the reason the trailer brakes are not working. The first thing I would check is the ground on the vehicle side 7-Way, the ground on the trailer,…

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Answer 11

The most probable cause for not getting a display when you apply the truck brake, but getting a display when manually activate the override is a bad connection in the stop light circuit. The stop light circuit is the red wire coming off the brake…

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Answer 12

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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No Power To Brake Output Pin On 2014 Ford F-150

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