7 Prong RV Wiring Diagram: Everything You Need to Know

Anyone who owns an RV knows how important it is to have proper electrical wiring. A properly wired RV not only ensures safety but also brings convenience and comfort on the road. In this article, we will go over everything you need to know about the 7 prong RV wiring diagram, from the basics to troubleshooting and maintenance.

What is a 7 prong RV wiring diagram?

A 7 prong RV wiring diagram, also known as a trailer plug wiring diagram, is a diagram showing the electrical connections between the RV and the tow vehicle. The diagram outlines the color codes and functions of each wire in the 7-pin trailer connector, which is typically used for towing RVs, campers, and other trailers.

The 7-prong RV wiring diagram pinout

The 7-prong RV wiring diagram follows a standardized pinout, which shows the assigned function of each wire in the plug. Here is a breakdown of the 7-pin connector:

Pin Color Function
1 Black Ground
2 Blue Electric Brakes
3 White Ground Return
4 Green Running Lights
5 Yellow Left Turn/Brake
6 Brown Right Turn/Brake
7 Red Auxiliary Power/Reverse Lights

It is important to follow this wiring diagram precisely, as any deviation can result in wiring issues or even dangerous conditions while towing your RV.

How to wire a 7 prong RV plug

The process of wiring a 7 prong RV plug involves several steps, which we will outline below:

Step 1: Gather the necessary materials

Before you start wiring your RV plug, you will need to gather the following materials:

  • A 7-prong RV plug
  • A wire stripper/cutter
  • Electrical tape
  • Crimping tool
  • A multimeter (optional)

Step 2: Strip the wires

Strip the outer insulation from the wire ends, exposing about 1/4 inch of bare copper wire. Be careful not to nick or cut the wires while stripping them.

Step 3: Arrange the wires

Arrange the wires according to the 7-prong RV wiring diagram pinout, making sure to match the wire colors and functions. You may need to use a multimeter to confirm the function of each wire.

Step 4: Crimp the wires

Crimp the wires into the correct pins using the crimping tool. Make sure to apply enough pressure to the crimp to ensure a solid connection.

Step 5: Wrap the wiring with electrical tape

Once you have the wires in the correct pins and crimped, wrap the wiring with electrical tape to prevent any exposed wires from grounding out and causing a short circuit.

FAQs

What if my RV wiring is not working?

If your RV wiring is not working, there are several possible causes. Check the wiring for any loose or damaged connections first. You can also use a multimeter to check the voltage of each wire in the plug to see if there is any electricity flowing. If you are still unable to find the issue, consult a professional electrician.

What is the difference between a 6 prong and 7 prong RV wiring diagram?

A 6 prong RV wiring diagram is typically used for smaller trailers and only has a ground, running lights, left turn/brake, right turn/brake, and a brake line. The 7 prong RV wiring diagram adds an extra pin for auxiliary power and reverse lights.

Why do I need an RV wiring diagram?

An RV wiring diagram is important because it ensures that your wiring is up to code and is properly wired for safety and convenience. It also allows you to troubleshoot any issues more quickly and accurately.

What are some tips for maintaining my RV wiring?

Some tips for maintaining your RV wiring include inspecting it regularly for any loose or damaged connections, using electrical tape to protect exposed wires, and checking the voltage with a multimeter periodically to ensure proper electrical flow.

Can I wire my RV plug myself?

Yes, you can wire your RV plug yourself, but it is important to follow the wiring diagram precisely to ensure proper wiring and avoid any issues. It is also important to use the correct tools and materials for the job.

Do I need a professional electrician to wire my RV plug?

While it is possible to wire your RV plug yourself, it is recommended that you consult a professional electrician for any complex wiring jobs. They can ensure that your wiring is up to code and properly wired for safety and convenience.

Overall, the 7 prong RV wiring diagram is an essential tool for any RV owner. Properly wiring your RV ensures safety and convenience on the road, and with the help of this guide, you can do it yourself with ease. Happy travels!