Battery Drain, F250, 6.4L, 2008, TD, XL - Ford Powerstroke Diesel Forum
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Old 06-16-2013, 06:52 AM
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Battery Drain, F250, 6.4L, 2008, TD, XL

Battery Drain of about 1.5 Amp. Internal fuse #5 pulled solves Drain (30ma).
Anyone have a schematic for this truck?
What device/s are connected to this fuse?
Any history on this fault?
Thanks.
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Old 06-18-2013, 05:32 PM
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I have the book for the truck. Give me a day or two and I'll see if I can get you an answer.
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Old 06-18-2013, 05:52 PM
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The internal fuse box on the pass side kick panel #5 is a 10amp keyed illumination, Brake shift interlock

If this is the fuse you are talking about it goes to the keyless entry. It's also goes to the brake shift interlock which is a 3 pin connector on top of the steering column. Pin 1 goes to ground. Pin 2 transmission park detect. Pin 3 powertrain brake shift interlock.
The keypad connector is in the door and funs through the main door harness

If you're referring to the engine bay fuse #5 it goes the the trailer brake control module

Hope this helps. If not shoot me a PM with your number and I'll help ya out.

Last edited by futbal2332; 06-18-2013 at 07:06 PM.
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Old 06-18-2013, 07:07 PM
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Battery Drain, F250, 6.4L, 2008, TD, XL

Thanks, I'm going to take a look at the Brake-Interlock in a few days.
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Old 06-22-2013, 11:19 AM
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what made you decide to pull internal fuse #5 ?? i am also having a recent issue with battery drain... how do i trouble shoot this?

i thought it was just draining because of work i was doing on it (doors/hood open/closed etc. over a period of time) but then i drove for hours and thought it would be charged up. less than a week later, drained..!!
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Old 06-22-2013, 03:55 PM
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Battery Drain, F250, 6.4L, 2008, TD, XL

I just went thru the process of elimination. I put the amp meter in line with the Negative terminal and post. then started pulling the fuses one at a time, when I pulled Internal #5, the draw went from 1.5 amps to .040 amps, and when everything went to sleep, it dropped to .020 amps, or 20ma. Next step is to pull the plug on the interlock device and test the draw again. I don't have the keyless entry feature. Interlock device is $100, non returnable.
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Old 06-22-2013, 03:58 PM
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Battery Drain, F250, 6.4L, 2008, TD, XL

Alternater can cause a draw when the regulator is failing, no fuse for that.
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Old 06-22-2013, 04:34 PM
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Batteries draining
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Old 06-22-2013, 04:41 PM
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Battery Drain, F250, 6.4L, 2008, TD, XL

2005 Ford Expedition Parasitic Drain - Ford Truck Enthusiasts Forums
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  #10  
Old 06-22-2013, 04:47 PM
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How to Find a Parasitic Battery Drain: 9 Steps - wikiHow
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