Trailer Warnings Buggin' Out

[Slingy]

Has anyone had this happen yet? I have an appointment Monday 2/12/24 to get it checked out. It started a few weeks ago after driving on wet and salty NH roads. It went away until the next time we had repeat road conditions and it came back in full force. The no touch car wash will also set this off. It's been ok during dry road conditions but goes nuts in the rain.This affects the directional signals as well and causes them to blink fast. As a side note, I have never used my receiver and the only thing I've put on it is a black rubber Bronco cover. In fact, I've never even looked inside the cable connector door until this happened and everything looks clean and well covered with dielectric grease.

Vehicle is BSBL 2021 with just under 19k on the odometer.

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[Dude]

Perhaps wiring and/or connector was damaged or corroded with the salt, ice and maybe rodents chewing wires. Just my 2c.

 

[Slingy]

Yeah maybe. I can't see much without taking off the bumper cover, muffler and heat shield over the muffler but from what I can see, which is pretty much the connector itself, it looks clean.

 

[Dude]

Yeah maybe. I can't see much without taking off the bumper cover, muffler and heat shield over the muffler but from what I can see, which is pretty much the connector itself, it looks clean.

Dealership won’t mind removing all that and more to find the problem. Installing it all back correctly you just hope they do a great job.

 

[Slingy]

Dealership won’t mind removing all that and more to find the problem. Installing it all back correctly you just hope they do a great job.

You got that right! I was actually thinking of taking some before pictures just to make sure all screws and nuts go back where they belong.

 

[Dude]

You got that right! I was actually thinking of taking some before pictures just to make sure all screws and nuts go back where they belong.

Smart idea!

 

[Ridn Dirty]

I occasionally have the same problem. It happens when it's cold and wet. The nonstop warnings are annoying.

 

[Slingy]

I occasionally have the same problem. It happens when it's cold and wet. The nonstop warnings are annoying.

Good! So I'm not alone on this. Have you done anything about it or are you just tolerating it? It wouldn't be as annoying if just one press of the "OK" button cleared it but it keeps coming back like a psychotic ex. when it acts up.

 

[DonImbimbo]

The trailer controller module is located in the right rear corner. Look for some water leaks behind the right rear wheel of maybe above that in the glass.

Has anyone had this happen yet? I have an appointment Monday 2/12/24 to get it checked out. It started a few weeks ago after driving on wet and salty NH roads. It went away until the next time we had repeat road conditions and it came back in full force. The no touch car wash will also set this off. It's been ok during dry road conditions but goes nuts in the rain.This affects the directional signals as well and causes them to blink fast. As a side note, I have never used my receiver and the only thing I've put on it is a black rubber Bronco cover. In fact, I've never even looked inside the cable connector door until this happened and everything looks clean and well covered with dielectric grease.

Vehicle is BSBL 2021 with just under 19k on the odometer.

 

[Slingy]

The trailer controller module is located in the right rear corner. Look for some water leaks behind the right rear wheel of maybe above that in the glass.

Thank you, I'll take a look and try to find it.

 

[RDS40]

I have problems sometimes on my Explorer with the spray at the car wash when entering. But after I'm out the other side and drive away, no other issues. I think the spray confuses the sensor system.

 

[Ford Motor Company]

Has anyone had this happen yet? I have an appointment Monday 2/12/24 to get it checked out. It started a few weeks ago after driving on wet and salty NH roads. It went away until the next time we had repeat road conditions and it came back in full force. The no touch car wash will also set this off. It's been ok during dry road conditions but goes nuts in the rain.This affects the directional signals as well and causes them to blink fast. As a side note, I have never used my receiver and the only thing I've put on it is a black rubber Bronco cover. In fact, I've never even looked inside the cable connector door until this happened and everything looks clean and well covered with dielectric grease.

Vehicle is BSBL 2021 with just under 19k on the odometer.

Good afternoon. Can you please send over a message with your VIN and the name/location of the Ford dealer you are currently working with? I would like to take a closer look at this warning light issue.

 

[Slingy]

The trailer controller module is located in the right rear corner. Look for some water leaks behind the right rear wheel of maybe above that in the glass.

Is this what you're referring to?

 

[Slingy]

Good afternoon. Can you please send over a message with your VIN and the name/location of the Ford dealer you are currently working with? I would like to take a closer look at this warning light issue.

I actually rescheduled my appointment with the dealer due to a snow storm coming through. I didn't want to take the chance of my car being in for any additional days and me being stuck without AWD.

 

[DonImbimbo]

It should have three connectors.
one harness heads to the front of the car.
one goes down through the hatch are floor
the last one goes up to the right hatch corner.

A total of about 7 or 8 wires

This module handles the trailer lighting from CAN BUS signals.

Is this what you're referring to?

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