no power to trailer plug
Thread Starter
|
Mountain Pass
Joined: Mar 2009
Posts: 117
Likes: 2
no power to trailer plug
new 2019 f250, 3 K miles. So today i went to hook up a trailer to purchase a Side by side UTV. No trailer lights, so i replaced trailer plug. Still nothing, so next i went a got a test light, no power in the round plug on any pin. Dealer says come back friday , WTF brand new crap
Super Moderator
Joined: Aug 2008
Posts: 37,379
Likes: 1,863
From: Frederick, MD
did you check all the fuses under the hood and the kick panel.
In the past several have found no fuses in the power distribution box. The dealer should make it right.
If you have an in bed plug have them check that too.
Bears in mind that when I have purchases trucks, I would take delivery without them first, in my presence, take a tester and plug it into the connectors. Service techs have them and it only takes a second to do.
In the past several have found no fuses in the power distribution box. The dealer should make it right.
If you have an in bed plug have them check that too.
Bears in mind that when I have purchases trucks, I would take delivery without them first, in my presence, take a tester and plug it into the connectors. Service techs have them and it only takes a second to do.
Senior User
Joined: Oct 2019
Posts: 233
Likes: 2
You don't have to set up a trailer or plug in and tap the brakes to get power to the plug. Have you ever used your truck to tow before? You probably have a bad fuse or, more likely, a bad relay. I think there's one under the hood that controls the pwr to the trailer tow plug.
Trending Topics
Senior User
Joined: Oct 2019
Posts: 233
Likes: 2
new 2019 f250, 3 K miles. So today i went to hook up a trailer to purchase a Side by side UTV. No trailer lights, so i replaced trailer plug. Still nothing, so next i went a got a test light, no power in the round plug on any pin. Dealer says come back friday , WTF brand new crap
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Hotshot
Joined: Jul 2013
Posts: 14,266
Likes: 2,187
it senses current demand to turn the trailer plug on.....which is a problem if you have LED lights that have low current draw...I had to put dropping resistors on my trailer lights so that a current demand activated the trailer plug. not sure how warranty friendly doing that is.
More Turbo
Joined: Oct 2017
Posts: 741
Likes: 234
From: S. Indiana
FWIW.....
When I plug my trailer into the 7 way, key off, nothing works.......
Plug trailer in, key on or truck running, I get a warning chime and a pop up saying: trailer connected
My late model Jayco is full LED, stop, tail, turn, markers; and works without any mods to the truck or trailer
When I plug my trailer into the 7 way, key off, nothing works.......
Plug trailer in, key on or truck running, I get a warning chime and a pop up saying: trailer connected
My late model Jayco is full LED, stop, tail, turn, markers; and works without any mods to the truck or trailer
Logistics Pro
Joined: Apr 2000
Posts: 4,334
Likes: 306
From: Mills River
FWIW.....
When I plug my trailer into the 7 way, key off, nothing works.......
Plug trailer in, key on or truck running, I get a warning chime and a pop up saying: trailer connected
My late model Jayco is full LED, stop, tail, turn, markers; and works without any mods to the truck or trailer
When I plug my trailer into the 7 way, key off, nothing works.......
Plug trailer in, key on or truck running, I get a warning chime and a pop up saying: trailer connected
My late model Jayco is full LED, stop, tail, turn, markers; and works without any mods to the truck or trailer
Our first truck camper did not have tail- or brake lights. I had to go through a setup routine the first time I plugged in the camper in order to activate he +12 battery charging circuit. I also installed a dummy load adapter to provide a load for the trailer brake light circuit current sensors.
IOW, the unusual electrical configuration of that camper (no brakes, no brake lights) may have required an unusual setup procedure.
Our new truck camper also has all-LED exterior lighting including brake lights, and I don’t need the load adapter for this camper..
HTH,
Jim / crewzer
Cargo Master
Joined: Oct 2019
Posts: 2,834
Likes: 1,191
From: Southeast MO
I noticed this on my TT as well, I plugged it up to my truck to because the TT battery was dead and I needed to use the power jack. I found where you have to tap the brake after hooking up a trailer to get the 12v charge circuit to activate. Mine is a 2017. I also found in Forscan the other night where you can change it to be active all the time. I have not tried it yet though but the option is there.
More Turbo
Joined: Oct 2017
Posts: 741
Likes: 234
From: S. Indiana
As an aside - If I do an overnight without disconnecting the trailer, after shutting the truck off and RV set up, I pull the seven way then plug it back in again.......The next morning the truck gives me the trailer connected warning after starting.
Mountain Pass
Joined: Dec 2018
Posts: 193
Likes: 15
From: Fort Collins
Here you go! Ford Special Service Message:
SSM 46257
"All 2017 F-Super Duty vehicles equipped with a factory trailer brake controller (TBC) utilize a trailer module (TRM) which initiates the trailer charging system. For trailer charging to operate, the TRM must detect a trailer is connected and a brake pedal input before charging will be present at the trailer connector. Adding the trailer battery charge relay and fuse into the battery junction box are not required to operate trailer charging with a TRM."
You can also check out this thread
SSM 46257
"All 2017 F-Super Duty vehicles equipped with a factory trailer brake controller (TBC) utilize a trailer module (TRM) which initiates the trailer charging system. For trailer charging to operate, the TRM must detect a trailer is connected and a brake pedal input before charging will be present at the trailer connector. Adding the trailer battery charge relay and fuse into the battery junction box are not required to operate trailer charging with a TRM."
You can also check out this thread
Thread Starter
|
Mountain Pass
Joined: Mar 2009
Posts: 117
Likes: 2
trailer
i was just trying to hook up a 10 foot small utility trailer to pick up a UTV. Thanks for all the help , i will post once problem is tracked down. And yes the truck was running and set to auto on lights. However i have never set up anything in the menu.