Trailer Breakaway System Wiring Diagram

As a truck driver, ensuring the safety of your cargo and trailers is paramount. A trailer breakaway system is an essential component for ensuring the safety of your trailers when they are disconnected from your towing vehicle. In this article, we will discuss what a trailer breakaway system is, why it is important, how it works, the components required, how to install it, legal requirements, how often it needs to be tested, common issues, and troubleshooting.

What is a Trailer Breakaway System?

A trailer breakaway system is a device used to activate the trailer brakes in the event that the trailer becomes disconnected from the towing vehicle. It is typically installed on trailers that are over 10,000 lbs and are being towed by vehicles with Gross Combination Weight Ratings (GCWR) greater than 26,000 lbs. This system prevents the trailer from becoming a runaway vehicle in the event of an accidental disconnection from the towing vehicle.

Why is a Trailer Breakaway System Important?

Trailer breakaway systems are important for ensuring the safety of both the driver and other motorists on the road. The system ensures that if a trailer becomes accidentally detached from the towing vehicle, the trailer brakes will be activated and the trailer will come to a safe stop. This prevents potential damage, injury, and death due to runaway trailers. It also helps to prevent fines and liability on the part of the driver.

How Does a Trailer Breakaway System Work?

When the trailer becomes disconnected from the towing vehicle, it will activate the trailer brakes and bring the trailer to a safe stop. This is accomplished through the use of two main components: a breakaway switch and an emergency breakaway cable. The breakaway switch is mounted on the trailer and is connected to the emergency breakaway cable. When the trailer disconnects from the towing vehicle, the breakaway switch is triggered and activates the trailer brakes.

What Are The Components of a Trailer Breakaway System?

A trailer breakaway system consists of three main components: a breakaway switch, an emergency breakaway cable, and a battery. The breakaway switch is mounted on the trailer and is connected to the emergency breakaway cable which is routed through the trailer frame and attached to the towing vehicle. The system must also be connected to a battery that provides power to the brake system in the event the breakaway switch is triggered.

How Do You Install a Trailer Breakaway System?

Installing a trailer breakaway system is no small task and should only be undertaken by a qualified technician. The first step is to mount the breakaway switch on the trailer frame. The second step is to route the emergency breakaway cable through the trailer frame and attach it to the towing vehicle. The third step is to select and install the appropriate battery. Finally, the system needs to be tested to ensure that it is functioning properly before being put into use.

What Are The Legal Requirements for a Trailer Breakaway System?

In the United States, most states require that any trailer that is over 10,000 lbs and is being towed by a vehicle with a Gross Combination Weight Rating (GCWR) greater than 26,000 lbs must have a trailer breakaway system installed. Additionally, some states may have additional requirements regarding the installation and testing of the system. It is important to consult local laws in order to ensure compliance.

How Often Should a Trailer Breakaway System Be Tested?

The trailer breakaway system should be tested at least once every 12 months or after any major repairs or modifications to the trailer or towing vehicle. During the test, all components of the system should be checked for proper operation and condition. Additionally, the battery should be checked and replaced when necessary.

What Are The Common Issues With Trailer Breakaway Systems?

Some of the most common issues with trailer breakaway systems include improper installation, worn out or broken components, and faulty wiring. It is important to regularly inspect and maintain the system in order to ensure that it is functioning properly. In the event of an issue, it is important to contact a qualified technician to repair or replace any parts that are not working properly.

How Can Trailer Breakaway System Wiring Be Troubleshooted?

Troubleshooting trailer breakaway system wiring can be done by testing each individual component with an ohmmeter. The ohmmeter should be used to check for continuity between the breakaway switch and the trailer brakes as well as between the breakaway switch and the battery. If any issues are found, it is important to contact a qualified technician in order to repair or replace any faulty wiring or components.

A trailer breakaway system is an essential safety device for any truck driver who is towing a trailer over 10,000 lbs. By understanding what a trailer breakaway system is, why it is important, how it works, and the components required, truck drivers can ensure that they are in compliance with all legal requirements and that their trailer is safe and secure. Additionally, it is important to have the system tested regularly and to troubleshoot any issues in order to maintain its functionality.