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Discussion Starter #1
I don't seem to have any power on any of the pins on my 7 way RV plug on the truck. It is a 2015 p4x auto.

There is an interior fuse box, and two under the hood. On the fuse box under the hood, and furthest back, there is a 30A fuse marked TOW, but it looks to be fine. Are there any other fuses I should be checking?
 

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I don't seem to have any power on any of the pins on my 7 way RV plug on the truck. It is a 2015 p4x auto.

There is an interior fuse box, and two under the hood. On the fuse box under the hood, and furthest back, there is a 30A fuse marked TOW, but it looks to be fine. Are there any other fuses I should be checking?
I had this same issue and started to test all of the fuses. I honestly forgot which fuse (or maybe relay, I forgot) it was, but there was another one that seemed completely unrelated that was blown and it fixed the issue. Buy a cheap tester and test them all under the hood - only takes a few minutes.
 

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Discussion Starter #3
It was under the hood though?

A fuse I can test with my multi-meter, not sure about a relay... Thank you.

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It was under the hood though?

A fuse I can test with my multi-meter, not sure about a relay... Thank you.
Definitely under the hood - trying to think what it was labeled - maybe it was REV or something - sorry. Somewhere here I posted it, but that was many moons ago. Anyways, should only take a few minutes with your multi-meter.

My search skills are at level ninja this morning. Found the post from a few years ago: http://www.clubfrontier.org/forums/f23/05-08-frontier-tow-relay-install-hitch-pics-27530/index3.html#post2458322
 

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Discussion Starter #5
Woah nice. Going to pop away from desk and try this quickly. Thanks.

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Discussion Starter #7
So when I started digging, I realised there was a whole other board of fuses on in that large box at the back/under hood. That board actually had a few more smaller trailer fuses. I think I had only found the large 30A one. Turns out the F4 (tow trailer) fuse was blown. I stole the F2 RR Def fuse and put it in F4. I tried my trailer test plug and got nothing still. But I didn't have time to try anything else.

Won't have time tonight, but tomorrow I'll try unplugging the trailer plug from harness and see if I have power back there. It is possible trailer plug was not wired correctly.

~S
 

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Discussion Starter #8
Finally got around to testing. Shop had wired trailer up wrong. After I sorted that out, I tested and everything is fine. So I can confirm for me it was the f4 fuse. Thanks for all the help.

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