Aux back up light wiring question - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 07-28-2013, 12:03 AM Thread Starter
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Aux back up light wiring question

I'm going to install some led lights to point out the back of my truck. A question for the electronic gurus out there, when wiring to an outfitter switch on my dash can I just run a wire straight to the switch or do I have to have a fuse between the lights and the switch? Also which one should I use, currently none of the switches are being used? I heard that they have different watts. Thanks




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post #2 of 11 Old 07-28-2013, 12:10 AM
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I cannons tell you about watts difference in the switches. I dont believe I've ever heard about that. But I would assume each switch has a fuse but if your wiring lights from the back of your truck to the switch you need to put a fuse somewhere back there cuz your always suppose to put a fuse outside of the truck.

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post #3 of 11 Old 07-28-2013, 12:10 AM
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Not sure what the 08's run for watts on the upfitters, but as long as the load from the lights do not exceed the watts for the upfitter you choose, you shouldn't have to run an in-line fuse. I didn't and mine work great, I have four mounted underneath my bumper and have never had an issue and barely draws power even with the truck not running.

Edit: I do have a fuse running on mine! Sorry I lied!

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Last edited by kells17; 07-28-2013 at 06:39 AM. Reason: I lied!
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post #4 of 11 Old 07-28-2013, 06:21 AM
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Why not just tie them into your reverse lights with a relay?


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post #5 of 11 Old 07-28-2013, 10:19 AM
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here is the setup guide for the 08's
I believe the 09+ were slightly different.

upfitter switch setup.pdf


I have my backup lights wired into my stock reverse lights so they go on automatically when I put it in reverse, but if you want to hook them to the upfitter, just run a wire. The upfitters are run through relays so I dont see any need for a fuse, but it wouldn't hurt anything to throw one in while your running the wire. You will want to know what amperage of the lights your installing so you can wire it to an appropriate switch.

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post #6 of 11 Old 07-28-2013, 12:49 PM Thread Starter
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Ok that's guys. I don't want to wire them into the reverse lights because I don't want them to come on all the time every time I back up. Plus if I want to have them on while I'm outside the truck I want to be able to control them. I just thought a while ago I read something that two of the switches had a different wattage than the other two. I will probably put a fuse in just in case for cheap insurance I guess.




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post #7 of 11 Old 07-28-2013, 03:16 PM
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Quote:
Originally Posted by blk450er View Post
I just thought a while ago I read something that two of the switches had a different wattage than the other two.
I think your right, I think number 1 & 2 upfitters are 30 amps, 3 is 15, and 4 is 10. I'm not 100% sure so don't quote me. Can someone clarify this??

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post #8 of 11 Old 07-28-2013, 06:18 PM
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Quote:
Originally Posted by RHKA View Post
I think your right, I think number 1 & 2 upfitters are 30 amps, 3 is 15, and 4 is 10. I'm not 100% sure so don't quote me. Can someone clarify this??
According to previously attached file (see my first post), number 1 & 2 are 30 amp, 3rd is 10 amp and 4th is 15 amp.

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post #9 of 11 Old 07-28-2013, 09:06 PM Thread Starter
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Ok, quick conversion question. If I use two 15w led lights 30w total, what would that convert into amps for which up fitter?




08 F350 crew 4x4
H&S mini, Sinister egr delete, cold side pipe, 5" straight pipe, S&B intake, 3.5" level, Newton bars, coolant filter, 325's duratracs, ARP studs, 6.0 manifolds, flow pro DP, Detroit truetrac, triple disk converter, led bed lights

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post #10 of 11 Old 07-28-2013, 09:13 PM
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Quote:
Originally Posted by blk450er View Post
Ok, quick conversion question. If I use two 15w led lights 30w total, what would that convert into amps for which up fitter?
I belive its 2.5 amps. 12volt system 30 watts 3012=2.5 amps

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