Question about 1999 Dodge Ram

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Trailer fuse blows when hooked up

I recently towed my enclosed trailer a few hundred miles, the brakes and lights worked fine. I unhooked while there because my brake controller light stays on while connected to the trailer. When I hooked to return home the 40 amp trailer fuse under the hood blew. I did not have brakes or running lights but the brake lights did work. I can not see any bare wires, but the wire for the brakes does run inside the axle cover(?). This is the only round 6pin trailer i have so i can not check with another. Any ideas would be great as I have another long haul next week. The truck is a 99 ram cummins 2500

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Is your truck wired for a 7 pin flat plug? if so are you using an adapter? The adapters are made differently. One has the center pin as brakes and the other uses the center as Aux. power. Any chance of an animal getting to the wires? They are kown to chew on the wiring. Also try http://www.etrailer.com/faq-wiring.aspx. They have a great website with lots of info.

Posted on Oct 07, 2009

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Not sure what you took a resistance reading from on the trailer tow adapter.

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3b8aa6c.jpg

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