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Need Trailer light help!

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Old Mar 2, 2017 | 01:41 PM
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McColorado
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Need Trailer light help!

So I feel like I've gone over everything but still have no luck. I have no power at all to my 7 pin plug - no lights, nothing. I checked all the related fuses and relays for all the lights/tbc etc.. And all were good. I replaced the 7 pin connectors both on my truck and on the trailer, still no go.. My 4 pin is working properly, however. Is there anything I'm missing? Or am I going to have to go on a ground/short hunt? Any help would be greatly appreciated!
 
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Old Mar 2, 2017 | 01:47 PM
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Are we supposed to just guess what you're working on?
 
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Old Mar 2, 2017 | 02:10 PM
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Sorry. First time posting to this forum. Its an 08 F250 XLT.
 
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Old Mar 2, 2017 | 02:37 PM
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From: In a state of confusion
Is this a Factory/Dealer wiring set up, or something a previous owner installed?

The attached Diagram may help.
 
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08 F250 power.pdf (1.76 MB, 561 views)
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