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Old 06-16-2021, 07:31 AM   #1
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No 12 volt power on connector for tow vehicle

I have a 2019 New Aire, need to know where the fuse is located for the 12 volt connector that powers the lights on the tow vehicle.
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Old 06-16-2021, 11:27 AM   #2
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What chassis is your coach built on ? Ford ?
Are all the functions of the trailer connector dead ?
Lights, signals , brakes ?
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Old 06-16-2021, 11:54 AM   #3
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Freightliner. Nothing is working (lights, brakes, or signals). I checked my connector with a volt meter and have 12 volt to one pin, plugged my cord up to my coach and have 12 volt to other end of cord. So my problem may be on tow end not coach end.
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Old 06-16-2021, 12:04 PM   #4
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Thanks for the info , didn't think a 33' would be on Freightliner chassis .

Starting in 2002 ? Freightliner started installing a trailer connector fuse module , in the rear portion of their wiring harnesses , now it was probably loose on the bare frame , and Newmar was involved in it's final placement , so if you have any wiring in rear compartments , particularly a box with cover , you'll have to remove the cover and check for fuses/relays .
Below is a picture from an older Spartan chassis , just to give you an idea of what the shape might be . Yellow box .
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Old 06-16-2021, 01:50 PM   #5
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Originally Posted by STEELMAN1978 View Post
Freightliner. Nothing is working (lights, brakes, or signals). .

fwiw - Are the tail lights on the coach working?? the freightliner pdm issue does disrupt power to the trailer port. do you know if you have had that issue? if not call frieghtliner with your vin# to make sure the pdm is not the source of the problem
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Old 06-16-2021, 03:25 PM   #6
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Okay I will, thanks.
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Old 06-16-2021, 04:45 PM   #7
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The PDM, which houses the fuses for trailer the connection, should be located adjacent to your starting batteries. You need to remove the cover (black box) and you'll find all the fuses with a diagram on the lid. Carefully remove the latches, as they are fragile.

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Old 06-16-2021, 05:44 PM   #8
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I have a 2019 New Aire, need to know where the fuse is located for the 12 volt connector that powers the lights on the tow vehicle.
Steelman1978 Sounds like you are having a PDM issue. I am having the exact problem right now. I know this because I have a appointment at Transwest next Wednesday for my PDM. I have no tail lights, no left directional. As Dutch star don says careful with the latches, I broke one. Good luck and safe travels
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Old 06-16-2021, 06:53 PM   #9
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Okay thanks I’ll check in the morning.
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