You are currently viewing Ford F150 Trailer Plug Not Working: Solid Truth

Ford F150 Trailer Plug Not Working: Solid Truth

If you’re planning to tow a trailer with your Ford F150, you’ll need to ensure that the trailer plug is working properly. The trailer plug is responsible for connecting your vehicle’s electrical system to the trailer’s lights, brakes, and turn signals.

However, if you’ve plugged in your trailer and noticed that the lights aren’t working, it’s likely that there’s an issue with the trailer plug.

Ford F150 Trailer Plug Not Working

When the trailer plug of a Ford F150 is not working, there are several common causes to consider. These include a blown fuse, loose connection, and corrosion.

Blown Fuse

A blown fuse is one of the most common reasons why a trailer plug may not work. The fuse is responsible for protecting the electrical system from overload, and if it blows, the trailer plug will not receive power. To check if the fuse is blown, the user can use a test light to check the fuse for continuity. If the fuse is blown, it can be replaced with a new one of the same amperage.

Loose Connection

Another common cause of a trailer plug not working is a loose connection. The connection between the trailer plug and the vehicle’s wiring harness can become loose over time, causing a loss of power to the trailer plug.

To fix this issue, the user can check the connection and tighten any loose connections. Additionally, the user can clean the connection with electrical contact cleaner to remove any dirt or debris that may be causing the connection to fail.

Corrosion

Corrosion is another common cause of a trailer plug not working. Over time, moisture and dirt can cause corrosion to build up on the connection, leading to a loss of power.

Read: How to Replace Parking Brake Cable on Ford F150? 

To fix this issue, the user can clean the connection with a wire brush or sandpaper to remove any corrosion. Additionally, the user can apply dielectric grease to the connection to prevent future corrosion.

By considering these common causes, users can troubleshoot and fix issues with their Ford F150 trailer plug not working.

Things To Do If Your Ford F150 Trailer Plug Not Working

When the trailer plug on a Ford F150 is not working, there are a few things that can be done to troubleshoot the problem. This section will outline some of the most common troubleshooting steps that can be taken.

Checking the Fuse

Ford F150 Trailer Plug Not Working:

The first thing to check when experiencing problems with the trailer plug is the fuse. The fuse for the trailer plug is typically located in the fuse box under the hood of the truck. It is important to consult the owner’s manual to determine the exact location of the fuse.

Once the fuse has been located, it should be checked to see if it is blown. If the fuse is blown, it will need to be replaced. It is important to use the correct amperage fuse when replacing it.

Inspecting the Connection

If the fuse is not the problem, the next step is to inspect the connection between the truck and the trailer. This involves checking the wiring and making sure that it is properly connected.

It is important to check all of the wires, including the green wire for the right side/turn brake lights, the orange wire for 12 volts electric power, the grey wire for electric power to the tail lights, and the pink wire for reverse brake lights. If any of these wires are broken or disconnected, the plug will not work.

Cleaning the Plug

Another common problem with trailer plugs is that they can become dirty or corroded. This can cause the connection to become weak or intermittent, which can lead to problems with the plug.

Check: What Causes a Ford F150 to Go into Limp Mode?

To clean the plug, it is important to use a contact cleaner or electrical cleaner. This will help to remove any dirt or corrosion that may be present on the plug. Once the plug has been cleaned, it should be dried thoroughly before reconnecting it to the trailer.

By following these troubleshooting steps, it is possible to identify and fix problems with the trailer plug on a Ford F150. If none of these steps work, it may be necessary to take the truck to a mechanic for further diagnosis and repair.

How To Replace The Plug

When the trailer plug on a Ford F150 is not working, replacing it may be necessary. The following steps can be taken to replace the plug:

  1. Identify the type of plug needed: There are different types of trailer plugs available, so it’s important to identify the correct one for the F150. The most common types are 4-pin and 7-pin plugs.
  2. Purchase the replacement plug: Once the correct type of plug has been identified, it can be purchased from an auto parts store or online.
  3. Disconnect the old plug: The old plug should be disconnected from the wiring harness by removing the screws or clips that hold it in place.
  4. Attach the new plug: The new plug should be attached to the wiring harness by following the manufacturer’s instructions. This may involve stripping the wires and connecting them to the corresponding terminals on the new plug.
  5. Test the new plug: Once the new plug is attached, it should be tested to ensure that it is working properly. This can be done by connecting it to a trailer and checking that all the lights and signals are functioning correctly.

It’s important to ensure that the replacement plug is installed correctly to avoid any further issues with the trailer lights and signals. If in doubt, it may be best to consult a professional mechanic or electrician for assistance with the installation.

Conclusion

With that said, the Ford F150 trailer plug not working can be caused by various factors, including poor electric cable connections, insufficient electricity supply, and dirty or corroded plugs. It is essential to inspect the trailer plug and the truck’s wiring system regularly to ensure that they are in good condition and functioning correctly.

If you experience any issues with your Ford F150 trailer plug, it is recommended that you take it to a certified mechanic or dealership for repair or replacement. Attempting to fix the issue yourself can lead to further damage or even injury.

Regular maintenance of your Ford F150’s trailer plug and wiring system can prevent future issues and ensure that your trailer is always connected correctly and securely.

By understanding the causes of trailer plug issues and taking preventative measures, you can avoid costly repairs and keep your Ford F150’s trailer plug working correctly for years to come.

Leave a Reply