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Old 08-04-2021, 10:28 AM   #1
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Trailer plug 12v output

I have a 2008 Fleetwood Discovery on a Freightliner chassis, on the trail pug I can not get any 12 volts on the post wired for constant 12v. I’ve checked the chassis fuse box and no blown fuses but also doesn’t have a spot for a fuse for trailer power. Anyone have any ideas or been through this?
Sorry fir the title, it won’t let me correct it.

TIA Barney
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Old 08-04-2021, 10:44 AM   #2
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It more than likely isnt connected either at the plug end or battery end. For some reason Freightliner has been all over the place throughout the years on this. Remember the motorhome has to have the key on at a minimum and with some the motorhome has to be running. If you are hooking up a brake controller that is another journey
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Old 08-04-2021, 12:01 PM   #3
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Found it!!! Thanks to Freightliner customer service, found a fuse box I didn’t even know it existed hahaha
Blown fuse, works great!!!!
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Old 08-04-2021, 04:21 PM   #4
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Pics & description for the next guy or gal to know where to find the fuses?
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Old 08-05-2021, 08:11 AM   #5
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Quote:
Originally Posted by Barneyb View Post
Found it!!! Thanks to Freightliner customer service, found a fuse box I didnít even know it existed hahaha
Blown fuse, works great!!!!
I still haven't found my blown fuse....would you please tell us where you found it?

Thank you very much.
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Old 08-05-2021, 04:46 PM   #6
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Hope this helps, my 2008 Discovery Freightliner chassis; in compartment noted there’s a box that has (Arens) on it are fuses and relays. Remove four screws and they are the real small fuse. I checked all and had two blown, have power at plug now! Hope these photos help.
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Old 09-01-2021, 02:32 PM   #7
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Smile

Yessir...I knew about that fuse box...but I was going by just the legends and didn't have anything that mentioned power.
Stupid Richard.... I took my test light out there today with the key on and tested all the fuses installed. Sure enough, the 2nd from the top fuse (20A) that was simply labeled IGN 1 was blown. Replaced the fuse and voila, now have tow plug power...which I will need on my upcoming 1700mile trip for the toad.
Happy camper right here.
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Old 09-01-2021, 05:50 PM   #8
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Originally Posted by RichKimball View Post
Yessir...I knew about that fuse box...but I was going by just the legends and didn't have anything that mentioned power.
Stupid Richard.... I took my test light out there today with the key on and tested all the fuses installed. Sure enough, the 2nd from the top fuse (20A) that was simply labeled IGN 1 was blown. Replaced the fuse and voila, now have tow plug power...which I will need on my upcoming 1700mile trip for the toad.
Happy camper right here.
Glad to hear!! Mine actually had two of them blown and one of them was the IGN 1 like yours
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