Trailer brake/turn signal lights not working...HELP!!!

[twilson]

My trailer running lights work fine, but the turn signals and brake lights do not. I tested the female plug on the truck side to see if I was getting power to it, and it is not. Is there a relay or fusable link some where that could be bad? The turn signals and brake lights work fine on the truck. It is a 20000 Excursion deisel, and I am supposed to tow my race car to Road Atlanta (6hrs) tomorrow morning!!!! Any help would be greatly appreciated.

[vitalidle]

If they work on the truck it has to be in the wiring from the plug to the tee in the harness. Check the wiring from the plug back to the tee.

[vitalidle]

Are you running a brake controller or is this your 4 wire plug not working?

[twilson]

I was running a controller, and the light lit up on it when I hit the brakes. When I was trying to figure out what was happenning with the lights, I just unplugged it to see if that may have had something to do with it. Apparently it doesn't, but it is still unplugged right now. I can just use the 4 wire plug, and that is what is in there now.

[pipelayerjdh]

if wired correctly, the trailer feeds have seperate fuses. I think they are in the power distribution box under the hood. Do you have an owners manual?

[twilson]

I don't have an owners manual. I do have one of those crappie Haynes manuals, but that hasn't been too helpful.

[vitalidle]

Here is an owners manual online should be close to the same. Go to page 175 http://www.motorcraftservice.com/pub.../01f23og4e.pdf

[twilson]

Guys...................you are awesome! Just replaced the (2) 7.5 amp fuses, and it works like a champ. I truly appreciate your help. Gotta get an owners manual off ebay in case I'm on the side of the road sometime. Again, I truly appreciate your help. Gonna get a good nights sleep now.

[vitalidle]

Hey I learned somthing today as well. I didn't realize the trailer feeds were seperate from the truck lights

[OkieFordFan]

This place is so awesome!!!! After chasing wires and fuses for hours I came inside and logged on, did a subject search, and 15 minutes later I was ready to roll. I pull my trailer for a living and really needed to get this problem fixed fast. Thanks so much for all of you that contribute your vast knowledge and experience to those of us that need help.

Thanks Again!

Mike