trailer tow relay
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Junior User
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From: CA
trailer tow relay
anyone know what the trailer tow relay is used for on my truck? its mounted on the drivers side under the hood.it looks like it has a brown wire on it that goes to the back of the truck. thanks steve
1990 f350 4x4 crew
1990 f350 4x4 crew
Thread Starter
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Junior User
Joined: Aug 2003
Posts: 58
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From: CA
bukwild my book(haynes) doesnt show it by by number. it just says trailer/marker light relay on wiring schematic.(brown and white wire goes to rear of truck)its located under the hood, driverside. it just says "trailer tow" its next to two others,"fuel pump" and "EEC power" they got a black plastic cover on them. my truck is a 1990 f350.it sounds like you need a book too. steve
Last edited by ssap108; Oct 14, 2003 at 11:26 PM.
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Joined: Oct 2003
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I finally tracked down my problem. There was a seperate fuse panel up against the firewall that holds six mini blade fuses. It is just for the trailer lights. As soon as I opened it up, I noticed a 20amp fuse blown. I replaced it and now have all lights again. I appreciate all the input. Hope I can help someone else out sometime.
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