Its a long story regarding the grand incompetence of multiple parties, but suffice it to say, I had to replace the main chassis harness in my truck leading from the bulkhead connector in the driver's fender well to the rear of the truck.
That being said I found the replacement harness to be defective in that the 12v Aux pin and the parking lamp pin in the 7 pin trailer plug connection had been placed incorrectly (I had to swap the two wires). Now that I have corrected that, my concern is that the 12v Aux pin has a constant 12v feed, even with the truck off. So with that, might I ask if someone would be willing to go test the number 4 pin in the attached diagram and see if it has a 12v feed with the truck off? I am finding conflicting info as to whether it should be switched or if it should be constant.
Thanks in advance!
12v Constant on Trailer Plug?
- ScubaSteve
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- Model Year: 2016
- Location: Kansas City, MO
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Re: 12v Constant on Trailer Plug?
Confirmed, 12v power at pin 4 when vehicle is off.
Live: Las Vegas NV, Drive: 2018 PW & 2014 LR4
Re: 12v Constant on Trailer Plug?
yeah, that one's always-on.
Fords put that pin on a relay so it's only on with ignition.
I ended up putting a switch in my trailer to connect/disconnect that pin to the trailer. Lets me isolate the truck so I don't kill its battery with the furnace/lights, but I can still charge the batt on the way there or back.
Fords put that pin on a relay so it's only on with ignition.
I ended up putting a switch in my trailer to connect/disconnect that pin to the trailer. Lets me isolate the truck so I don't kill its battery with the furnace/lights, but I can still charge the batt on the way there or back.
- ScubaSteve
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- Joined: Fri Jun 28, 2019 10:40 am
- Model Year: 2016
- Location: Kansas City, MO
Re: 12v Constant on Trailer Plug?
Sweet. Thanks a lot!
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Re: 12v Constant on Trailer Plug?
On my motorhome. It's only powered with the key on.
PWOC #53
2008 POWER WAGON RC
My build thread. http://forum.powerwagonregistry.org/vie ... =13&t=2826
Moab '09, '10, '12, '14.
Rausch Creek - Summer '10, Spring-Fall '11, Spring '12, Summer '13, Summer '14, Summer '15, Summer '16, Summer '17, Summer '18, Summer '20, Summer '22,
AOAA Summer '19.
Russ
NRA - Benefactor, Golden Eagle.
2008 POWER WAGON RC
My build thread. http://forum.powerwagonregistry.org/vie ... =13&t=2826
Moab '09, '10, '12, '14.
Rausch Creek - Summer '10, Spring-Fall '11, Spring '12, Summer '13, Summer '14, Summer '15, Summer '16, Summer '17, Summer '18, Summer '20, Summer '22,
AOAA Summer '19.
Russ
NRA - Benefactor, Golden Eagle.