When towing a trailer, it is essential to have a breakaway system in case the trailer becomes detached from the towing vehicle. The breakaway system is designed to activate the trailer brakes if the trailer becomes disconnected from the tow vehicle, preventing a runaway trailer. The most common type of breakaway system is a 2 wire trailer breakaway switch. In this article, we will discuss the wiring diagram for this type of switch, along with frequently asked questions (FAQs).
The Wiring Diagram
The wiring diagram for a 2 wire trailer breakaway switch is relatively simple. The switch has two wires – one wire connects to the trailer battery, and the other wire connects to the trailer brakes. When the switch is activated, it completes the connection between the trailer battery and the trailer brakes, activating the brakes and bringing the trailer to a stop.
To wire the switch, follow these steps:
- Locate the trailer battery and the trailer brakes
- Connect one wire from the switch to the positive terminal on the trailer battery
- Connect the other wire from the switch to the wire that runs from the brake controller to the trailer brakes
- Securely mount the switch to the trailer frame or hitch
Once the switch is wired and mounted, test the system to ensure it is working correctly. To test the system, pull the pin on the switch, and the trailer brakes should activate.
FAQs
1. Does a 2 wire trailer breakaway switch require a battery?
Yes, a 2 wire trailer breakaway switch requires a battery to power the trailer brakes. The switch is designed to activate the trailer brakes if the trailer becomes detached from the tow vehicle, preventing a runaway trailer.
2. Where should I mount the breakaway switch?
The breakaway switch should be mounted on the trailer frame or hitch within reach of the tow vehicle. It should be easily accessible in case of an emergency, but out of the way so that it is not accidentally activated during normal use.
3. How often should I test the breakaway system?
The breakaway system should be tested every time you hook up your trailer to ensure it is working correctly. To test the system, pull the pin on the switch, and the trailer brakes should activate. If the brakes do not activate, you should troubleshoot the system and make any necessary repairs.
4. How do I troubleshoot a breakaway system?
If the breakaway system does not activate when the pin is pulled, there are several things you can check:
- Ensure the battery is fully charged
- Check the wiring connections to ensure they are secure
- Test the switch with a multimeter to ensure it is functioning correctly
- Check the brake controller to ensure it is functioning correctly
If you are still unable to troubleshoot the system, consult a professional for assistance.
5. Are there any maintenance requirements for a breakaway system?
Yes, the breakaway system should be checked periodically to ensure it is functioning correctly. Check the battery for proper charge and any signs of corrosion, and ensure the switch is securely mounted and functioning correctly. If any issues are identified, make any necessary repairs before using the trailer.
Conclusion
A 2 wire trailer breakaway switch is an essential component for any trailer that is towed on public roads. It is important to ensure the switch is wired correctly and mounted securely to the trailer frame or hitch. Testing the system regularly and making any necessary repairs will help ensure the system is functioning correctly in case of an emergency.
