What Color Wires Go Together On A Trailer



In the world of trailer wiring, color coordination is key. Knowing which colors and wires go together can be crucial for ensuring your trailer is wired correctly and safely. As trailer wiring is a complex task, it’s important to understand the basics of what color wires go together on a trailer.

One of the most common types of trailer wiring used today is the four-way flat system. This system is used for trailers that don’t require auxiliary power or braking and features four color coded wires: white, yellow, green and brown. The white wire is the ground wire, while the green and yellow wires are right turn and left turn signals, respectively. Lastly, the brown wire provides the brake lights, which includes the stoplights and taillights.

It’s also important to note that the colors used may slightly differ depending on the type of trailer. For example, four-way round wiring often uses green and red for the right and left turn signals respectively. When in doubt, consulting an installation manual or a professional electrician can help you figure out which colors should be used for your specific trailer.

Overall, knowing which color wires go together on a trailer can be the difference between a safe and secure connection and a faulty one. Understanding the different types of trailer wiring, and the colors that are associated with each type can help ensure you have a safe and secure wiring job.


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