no trailer tail lights

[iafarmboy]

just hooked up my new to me truck (06 f350 crew lb 4x4) to a trailer i am borowing and the trailers tail and marker lights dont work, everything else works good. checked fuse under dash and was ok swapped it out anyway. i know the lights work because we hooked to another truck and everything is good. no juice to the pin at the rear plug for the marker lights. any help would be appreciated, because i need to go to lawrence, ks from ft. dodge, ia (approx 330 miles one way) tomorrow night. thanks

[f250krew]

i just replaced mine with a 6 plug in (fits all my trailors) because mine didnt work i suggest wiggling it around when its plugged in and see if they blind on and what not when i took mine off the wires were so crodded and gummy it wasnt gettinga good connection behind the plug check it out

[Hardline]

Wait I'm now confused. You said you replaced the fuse for the trailer marker lights right? You said you have no power at the pin at the plug. Is that the plug at the back of the truck? Then you said that it works correctly on a different trailer???????? How is that? Or did I read it wrong?

[f250krew]

he hooked the trailor up to another pickup and the lights worked fine is what im assuming and like i said i think the wires in back of the plug are so gummed up and crodded that the connection is bad take a look youll probably have to take the plug of and cut the tip of the wires off and then re hook it back up dont forget to clean your plug in the back also hope this helps

[Dave]

Check the fuse panel under the hood. One of them is blown.

[Chiller]

Originally Posted by Dave

Check the fuse panel under the hood. One of them is blown.

I agree same thing happened to my truck it was the fuse under the hood... dont go cutting wires until you check the fuse

[Dave]

To clear up trailer light issues and confusion. On both the 7.3 and 6.0 superduty trucks there is a trailer light fuse in the dash panel. But there are also several trailer light fuses in the fuse panel under the hood. The trailer marker lights. Turn signals,brake lights and Brake controller circuits are all on different fuses.

Be sure to check all of the above before you go cutting and splicing.

Also for those of you with 6 pin connectors on trailers there are two variations of these as well. If your trailer brakes dont work swap the center pin wire and trailer brake wire around on your trailer then they will work

[Hardline]

OK I did read it wrong. I thought he said they hooked that truck to a different trailer and they worked. I need to slow down my reading. On edit I just went out and looked at my 04. ALL the fuses are under dash on mine. Trailer park lights is fuse #38. Not sure if it will be the same on his truck because mine is a can n chassis truck. JJ

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Last edited by Hardline : 10-30-2009 at 12:12 PM.

[iafarmboy]

as far as we could tell it was somewhere in the dash. ended up running a new wire ( thanks nick) thanks for the rest of the replies.

[Dietoremain]

Originally Posted by Dave

To clear up trailer light issues and confusion. On both the 7.3 and 6.0 superduty trucks there is a trailer light fuse in the dash panel. But there are also several trailer light fuses in the fuse panel under the hood. The trailer marker lights. Turn signals,brake lights and Brake controller circuits are all on different fuses.

Be sure to check all of the above before you go cutting and splicing.

Also for those of you with 6 pin connectors on trailers there are two variations of these as well. If your trailer brakes dont work swap the center pin wire and trailer brake wire around on your trailer then they will work

I dont have a diagram or anything would you know which fuse is the trailer light fuse? Cuz I have all but trailer lights and i really need to fix it by saturday....