Easy lifehacks

Why do trailer lights keep blowing fuse?

Why do trailer lights keep blowing fuse?

You have a short circuit somewhere that is causing the fuse to blow. Likely causes of a short on a vehicle include a dirty or corroded trailer connector or damaged wiring. Make sure the trailer connector is clean (go ahead and do the same for the trailer side connector while you’re at it).

Why does my trailer light keep blowing fuses?

That is most likely why your fuse is popping. The main ground strap from your trailer frame to your trailer connector needs to be connected to a clean metal surface. The light assemblies ground to the trailer frame which then goes from there to the ground strap of the trailer connector.

Why is my tow package running light not working?

If it is the tow package running light fuse that is blowing then there is most likely a short in the trailer wiring or in the trailer or vehicle side connector. What you will want to do first is make sure both the vehicle side and trailer side connectors are clean and free of corrosion inside and out.

Why are the lights on my trailer not working?

Then you will need to trace the wiring from the connector back to each light looking for breaks, copper strands touching bare metal, or loose connections and fix as needed. You will need to figure out what is causing the short and repair it before installing another fuse.

That is most likely why your fuse is popping. The main ground strap from your trailer frame to your trailer connector needs to be connected to a clean metal surface. The light assemblies ground to the trailer frame which then goes from there to the ground strap of the trailer connector.

What to do if your running light fuse keeps blowing?

Replace the fuse and then use a circuit tester such as # PTW2992 to test the vehicle side trailer connector while someone sits in the vehicle and turns on the running lights. If it shows power and the fuse does not blow then the issue is on the trailer. If it does blow the fuse then the issue is on the vehicle.

If it is the tow package running light fuse that is blowing then there is most likely a short in the trailer wiring or in the trailer or vehicle side connector. What you will want to do first is make sure both the vehicle side and trailer side connectors are clean and free of corrosion inside and out.

Then you will need to trace the wiring from the connector back to each light looking for breaks, copper strands touching bare metal, or loose connections and fix as needed. You will need to figure out what is causing the short and repair it before installing another fuse.

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Ruth Doyle