After wash getting Trailer Connected/Disconnected Alerts

[doba_s]

Got truck yesterday and got it to get washed today.

After wash getting these non stop alerts Trailer Connected & Trailer Disconnected .

Any ideas what’s causing it?

 

[doba_s]

On Acceleration I get “Trailer Connected” and when braking “Trailer Disconnected”

Seems like water moves and shorts something in some module.

 

[SmokieRiver]

Not on my Raptor, but my prior F150 Plat I got the same issue when towing in a massive downpour. Went away when everything dried out and did not come back.

I read somewhere thatit's a known issue with F150s - who knows if true - and once it dries out it goes away. I would either let it air dry or take a hair dryer to the connection at the bumper.

 

[doba_s]

After driving for 40min it went away, but damn it’s annoying...

 

[The Car Stereo Company]

probably water in the trailer plug

 

[doba_s]

probably water in the trailer plug

I checked both plugs right away and didn’t find any water that could cause a short.

 

[GutweinMCP]

I would check the back of the connector to the plug sometimes they'll get jarred by a car wash and won't be fully seated or a good amount dielectric grease in the plugs always helps too.

 

[The Car Stereo Company]

check the pcm. mine would get wet and my truck would go crazy. no pwer, a bunch of faults, etc. therr may be something getting wet, like mine, and causing some issues

 

[SVT-ME]

I believe this is a know issue covered in
TSB - 2106 and should be covered under warranty


https://www.ford-trucks.com/forums/attachment.php?attachmentid=261019&d=1528464018

 

[Fisch2027]

What happens with a different trailer? I tow one trailer and I have the problem rain or shine, no issues ever with the other trailer. Have not dug into figuring out cause yet.