wiring diagram
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Senior User
Joined: Oct 2003
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From: Colorado
wiring diagram
Two questions:
1. Is there an online wiring schematic anywhere for my truck?
2. is there an accessable junction/connection/plug point of some kind where the wiring harness feeding the rear end is connected to the main harness? Maybe along the frame under the cab? I'm looking for a point where I can insert a T-connector so I can build a slide-in camper pigtail and not have to plug one into the trailer connector on the rear bumper which I'm using to power a trailer. I also don't want to use wire splices on the OEM wires at the back end where they are so exposed.
Thanks
1. Is there an online wiring schematic anywhere for my truck?
2. is there an accessable junction/connection/plug point of some kind where the wiring harness feeding the rear end is connected to the main harness? Maybe along the frame under the cab? I'm looking for a point where I can insert a T-connector so I can build a slide-in camper pigtail and not have to plug one into the trailer connector on the rear bumper which I'm using to power a trailer. I also don't want to use wire splices on the OEM wires at the back end where they are so exposed.
Thanks
Postmaster
Joined: Jan 2004
Posts: 4,758
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From: colorado
on the tow package diagram for my 2001 it shows an extra open plug for a 7 wire trailer hook-up. go to your 7 pin/ 4pin trailer plug at the rear bumper and follow it back up to the frame, the picture i have shows the plug mounted on the rear cross member of the frame looped off of the trailer wireing harness.
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Senior User
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From: Colorado
thanks - I jusr dropped the tire on my 04 and took a good look at that juncture. It appears that the rear harness splits just at the rear cross member into three parts: left & right rear light bundles and the connector for the trailer light harness. There's no additional plug inn point. I pulled out the trailer harness and am planning to hard wire another connector in there to drive a 4-pin and 6-pin slide-in camper connection. Since I can't locate a T-connector that fits in that spot with all the 12 gage wireing I'll have to make one. 
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From: Colorado
yeah - you are correct about corrosion. That is my reason for not liking those mid-line wire connectors - they open up a slit in the insulatin for corrosion to get in. I came across a wire connector at NAPA today that has a built in shrink wrap tubing and will use those when I splice in my extension. I went to a trailer manufacturer here in Ft. Collins and bought enought 6-wire and a plug to install the pigtail extension I want.
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Senior User
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From: Colorado
I pulled the trailer electrics plug & harness out from under the rear (it's about 2' long) and am soldering in the wiring extension to drive my slide-in camper. I'm hard wiring a 6-1 bundle for a 7 pin plug like the trailer reciever plug on the back bumper of the truck. All the colors of the extension cable are an easy match except the black. There is no black wire in the OEM bundle.
I went to the etrailer.com site and in the 7 pin configuration picture the black wire that pins to #4 pole is just designated "12V". On other illustrations the black wire is power for backup lights or something. I'm sort of confused with this and wonder if I can just wire the black and orange 12V on the same line?
I went to the etrailer.com site and in the 7 pin configuration picture the black wire that pins to #4 pole is just designated "12V". On other illustrations the black wire is power for backup lights or something. I'm sort of confused with this and wonder if I can just wire the black and orange 12V on the same line?
Post Fiend
Joined: Jan 2002
Posts: 5,859
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From: USA
here is the wire setup
on 7 pin trailer plug
pin #1 -yellow- left turn
pin#2 - unused
pin#3- dark blue unused
pin #4 -dark green right turn
pin#5 - organge - battery charge 12 v
pin#6 -Brown /white tracer -parking lights
pin#7 - Black/light green - reverse lamps
Black is always ground on our trucks ,don't tie black to organge
Rich
on 7 pin trailer plug
pin #1 -yellow- left turn
pin#2 - unused
pin#3- dark blue unused
pin #4 -dark green right turn
pin#5 - organge - battery charge 12 v
pin#6 -Brown /white tracer -parking lights
pin#7 - Black/light green - reverse lamps
Black is always ground on our trucks ,don't tie black to organge
Rich
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From: Eastern PA
I have a 95 F-250 with a Factory Installed Ford 7 pin connector. I would like to replace or add a 4 pin (flat) (OOO@). What is the best way to do so ?? Adding would be ideal, but replacing would work fine also...
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Former Vendor
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From: Seattle
Originally Posted by jgray
I have a 95 F-250 with a Factory Installed Ford 7 pin connector. I would like to replace or add a 4 pin (flat) (OOO@). What is the best way to do so ?? Adding would be ideal, but replacing would work fine also...
Thanks
Jason
Thanks
Jason
F5TZ 13A576-AA that would take care of you.
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