Cargo light on enclosed trailer
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Joined: Mar 2007
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Cargo light on enclosed trailer
I have a 6x12 enclosed trailer with a interior cargo light. My friend pulls it sometimes with his 3/4 ton gmc and the interior cargo light works. When I pull it with my 07 1/2 ton ford with tow package it dosen't work. What wiring do I need to get this light to work. Thanks for your time.
Cargo Master
Joined: Dec 2004
Posts: 2,852
Likes: 1
From: Living under the bosses d
do you have electric brakes on the trailer? if so do you have a controller in the cab?
What I am getting to is that thare should be a Fuse under the hood that needs to be put in. If you pop the hood and find the fuse box you will find a place that needs a fuse. Mine is #29 i think. It should be labeled on the cover. If you add this fuse it will send power to your trailer through a charge wire. This wire will be good for running lights and charging your electric brake battery or house batteries on a travel trailer..
Let me know if this helped.
Marty
What I am getting to is that thare should be a Fuse under the hood that needs to be put in. If you pop the hood and find the fuse box you will find a place that needs a fuse. Mine is #29 i think. It should be labeled on the cover. If you add this fuse it will send power to your trailer through a charge wire. This wire will be good for running lights and charging your electric brake battery or house batteries on a travel trailer..
Let me know if this helped.
Marty
Cargo Master
Joined: Dec 2004
Posts: 2,852
Likes: 1
From: Living under the bosses d
OK, I was wrong,
it is fuse #16 30 amp(trailer tow battery charge). I would also check that you have Relay #39 (battery charge relay).
Mine is for a 99 F250 SD and yours may be different.
The relay box may be mounted to the side of the power distribution box under the hood. And in the power dist box is where you will find the fuse location
By the way, you will need the key on to get juice
it is fuse #16 30 amp(trailer tow battery charge). I would also check that you have Relay #39 (battery charge relay).
Mine is for a 99 F250 SD and yours may be different.
The relay box may be mounted to the side of the power distribution box under the hood. And in the power dist box is where you will find the fuse location
By the way, you will need the key on to get juice
FTE Legend
Joined: Jul 2005
Posts: 65,938
Likes: 1,432
From: Millersville, MD
Was that inside light added after purchase? Sounds like the light doesn't have a good ground. Make sure your electrical plug on trailer has a ground going to the truck end. Ford doesn't like using the trailer hitch as a ground.
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Fleet Owner
Joined: Aug 2001
Posts: 29,941
Likes: 46
From: Drummonds, TN USA
7-ways have a +12V connection. 4-ways don't.
If you have a 4-way, and use an adapter to a 7-way it won't have it either.
What is your electrical hookup?
It sounds to me like you don't have THIS:
https://www.ford-trucks.com/forums/5...ing-7-way.html
If you have a 4-way, and use an adapter to a 7-way it won't have it either.
What is your electrical hookup?
It sounds to me like you don't have THIS:
https://www.ford-trucks.com/forums/5...ing-7-way.html
Last edited by Greywolf; Apr 29, 2007 at 03:07 PM.
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