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Old 10-24-2018, 04:54 PM   #1
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Brand: Thor Motor Coach
Model: 2014 Hurricane 34E
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Power to rear 7 way plug

I lost 12v power to my road brake system which is fed to toad from RV. It appears it is dead on the RV plug near trailer hitch.
Does anyone know where the fuse should be? Iíve checked ford f53 book but description are not clear as to which fuse.
Anyone know which fuse? Thx Dennis.
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Old 10-24-2018, 06:45 PM   #2
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THOR #8069
I had an issue with my 7 way plug a few months ago found the fuse in the engine conpartment just in front of the dashboard.
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Old 10-24-2018, 08:21 PM   #3
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Yep, normally part of the Ford factory fuse block.
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Old 10-24-2018, 08:32 PM   #4
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I'll look there. Thx folks.
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Old 10-24-2018, 10:12 PM   #5
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Do gas class A's come with an owners manual for the chassis like a class C? If so the Ford manual will tell you exactly which fuse is blown. Had to find one for our C that way.
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Old 10-24-2018, 10:24 PM   #6
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Yes they do but I said earlier it wasn’t clear exactly which one it is. Just trying to narrow down to keep from going through a bunch. Thx.
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Old 10-24-2018, 10:26 PM   #7
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This should help. <https://fuse-box.info/ford/ford-f-53...and-relay#2016
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Old 10-24-2018, 10:45 PM   #8
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THOR #6181
Those are pretty much the drawings in book.

Just for fun, which location( under dash or engine compartment) and then which fuse box and then which fuse do u guess? One says brake controller but I assume that’s a brake controller in the cab to a trailer. I’m more interested a auxiliary power since powering toad brake buddy in car.
But I’m 68 years old, 600 miles from home, bad back and neck, and can’t see w bifocals in some positions.
Where should I start? That’s my reality and dilemma!!! Thx Dennis.
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Old 10-25-2018, 12:20 PM   #9
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Start with J12 in the F59 under hood power distribution box. It's a 30amp fuse. These new style fuses can be hard to visually see if they are blown. A test meter or test light would help if you have access to one. You also need to check your electrical cable from the coach to the toad it may have had a wire come loose inside a plug (usually the silver toad end plug) which popped the fuse. I slipped and pulled on the cable and not just the metal ears and caused this same problem.
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Old 10-25-2018, 01:03 PM   #10
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Quote:
Originally Posted by Mustang46555 View Post
Start with J12 in the F59 under hood power distribution box. It's a 30amp fuse. These new style fuses can be hard to visually see if they are blown. A test meter or test light would help if you have access to one. You also need to check your electrical cable from the coach to the toad it may have had a wire come loose inside a plug (usually the silver toad end plug) which popped the fuse. I slipped and pulled on the cable and not just the metal ears and caused this same problem.
Thx Mustang. This an actually an F53 chassis, 22000 lb and most likely a 2013 since coach is 2014.
Given that it appears the fuse u point out should equate to fuse 13 in the power distribution box under hood. Iíll start there for sure.
I do have a volt meter and will check continuity on fuse to make sure. Thx again Dennis.
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Old 10-26-2018, 10:07 PM   #11
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Latest news, I did check the fuses in the power distribution box once I figured out how to get the dawn thing opened!!! Not a lot of ways to get ur head in there to see but I think I finally tried the one that worked. The fuses were all good.

BUT, and that's a big BUT, I did by accident find a wire hanging down behind the left side headlite from a box (forgot name on box) but there was main battery cables coming and going to both house and chassis batteries. I assume it has something to do w the charging system since both are attached.

The wire (10ga) I found came out of a crimped solderless terminal and had a 30amp inline fuse in it. It was attached to the chassis battery terminal on the box. I followed it back across engine compartment to the positive post of battery. So, since I was almost tool less I bought a piece of 10 ga wire and just ran it across direct to the battery terminal which I had tools to fit. Once home and tool boxes full of tools I will remove cable from box, crimp new eyelet on, and reattach where it was.

I checked w a volt meter and it appears I have power again at back of coach. Once I hook up car I'll know for sure. Thx, Dennis.
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Old 11-30-2019, 02:25 AM   #12
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also lost power on the 12 volt battery pin...not the brake power.

Quote:
Originally Posted by Budman View Post
I lost 12v power to my road brake system which is fed to toad from RV. It appears it is dead on the RV plug near trailer hitch.
Does anyone know where the fuse should be? Iíve check ed ford f53 book but description are not clear as to which fuse.
Anyone know which fuse? Thx Dennis.
This pin is for 12 volt power...it's not the brake controller pinout. Anyone know where it is fused. I cannot find it listed in the diagrams.
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