Ground strap
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Junior User
Joined: Dec 2006
Posts: 56
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From: Dodge City, KS
Ground strap
Can anybody tell me where the main electrical ground on 2009 F250 V10 is at. I'm having some electrical problems and am kinda of stumped and just thought of this.
Thread Starter
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Junior User
Joined: Dec 2006
Posts: 56
Likes: 0
From: Dodge City, KS
I keep blowing a fuse when I pull a trailer. I have a 6 hole round on my bale bed and was checking it tonight with a friend, and we discovered that our test light lights up when you touch the bed anywhere.
Kind of has me stumped and we are going to look at it tomorrow afternoon when it is light out.
Kind of has me stumped and we are going to look at it tomorrow afternoon when it is light out.
Post Fiend
Joined: May 2006
Posts: 10,007
Likes: 4
From: Central Florida
Lighting the test lamp could be as simple as a voltage differential between the two points your connecting. This should show as kind of dim.
However if the fuse only blows when you hook the trailer, I'd bet you have a pinout crossed on the trailer or plug. Say something like Aux power in the plug is being sent to the trailer's ground wire and back into the truck body through the ball. It sounds weird, but I've seen it happen. There are actually two standard configured 6 round plugs, on one the center pin is ground and I believe the other is a turn signal. Be sure they are wired alike before getting too deep into the truck.
However if the fuse only blows when you hook the trailer, I'd bet you have a pinout crossed on the trailer or plug. Say something like Aux power in the plug is being sent to the trailer's ground wire and back into the truck body through the ball. It sounds weird, but I've seen it happen. There are actually two standard configured 6 round plugs, on one the center pin is ground and I believe the other is a turn signal. Be sure they are wired alike before getting too deep into the truck.
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Junior User
Joined: Dec 2006
Posts: 56
Likes: 0
From: Dodge City, KS
Thanks, the test light show bright when you touch the bed. On my 6 hole round the center it the auxiallary. I have several trailers and it doesn't seem to matter which one. Usually can figure these out, but this just seems wierd.
Post Fiend
Joined: May 2006
Posts: 10,007
Likes: 4
From: Central Florida
What were you grounded too on the light? Since it happens with all of the trailers, I'd suspect the vehicle as wrong. This is usually as simple as wiring the plug backwards which is incredibly easy to do with certain companies directions (pin outs)
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Junior User
Joined: Dec 2006
Posts: 56
Likes: 0
From: Dodge City, KS
Thanks, but got it figured out. On of the stop, turn, tailights on my truck was out and it was grounding out the bed. Replaced it and the bed doesn't light the test light and I checked with a trailer today and it worked fine.
