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Why does my trailer running light fuse keep blowing?

Why does my trailer running light fuse keep blowing?

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 do trailer lights keep blowing trucks fuse?

There is a 20 amp fuse in the passenger kick panel that controls the trailer’s running lights (brake lights and turns are another circuit) that keeps blowing. Interestingly we also have an 2001 Expedition with factory tow package that doesn’t have this problem. Truck is like new (24k miles) and just developed this issue. Any ideas?

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.

How do you put running lights on a trailer?

Juan used a 15 amp for his trailer’s 7-pin connector plug. Stick the fuse into two adjacent slots at a time until the running lights come on. That is it!

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.

There is a 20 amp fuse in the passenger kick panel that controls the trailer’s running lights (brake lights and turns are another circuit) that keeps blowing. Interestingly we also have an 2001 Expedition with factory tow package that doesn’t have this problem. Truck is like new (24k miles) and just developed this issue. Any ideas?

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.

Juan used a 15 amp for his trailer’s 7-pin connector plug. Stick the fuse into two adjacent slots at a time until the running lights come on. That is it!

Are there any running lights on my truck?

They work fine on the truck, but my tester on the trailer plug says they are out. I have brakes and signal lights, no running lights. The book says trailer running lights are fuse 29 but that picture, man, I can’t read it. Does anyone have a fuse panel chart that I can zoom into so I can read were #29 is? Click to expand…

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Ruth Doyle