Trailer connected error but no trailer attached

[Deleted member 8023]

I had my camper attached earlier today then after parking it and detaching it the truck still thinks a camper/trailer is attached. I’ve tried telling No Trailer and even reattached and detached my camper again. It notices when unattached and attached the camper, but I get these errors about turn signals, cross traffic disabled since trailer attached, reverse brake assist not avail when I back up or turn on the truck. I blew out the plugs too just in case. Everything works when the camper is attached and no errors, I only get this after I detach the camper. No clue??.

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[Meterman]

I’ve had he Reverse Brake Assist error happen twice, you need the dealer to fix it. It took 3 hours, they have to run updates on a lot of modules. I don’t know about the others but I would hope they will go away when the dealer fixes the Reverse Brake Assist.

 

[Deleted member 8023]

I’ve had the Reverse Brake Assist error happen twice, you need the dealer to fix it. It took 3 hours, they have to run updates on a lot of modules. I don’t know about the others but I would hope they will go away when the dealer fixes the Reverse Brake Assist.

I have to get my VIN checked for updates. I've done my own Module updates as the dealerships here suck and are usually backlogged for weeks, it's how I finally resolved the harsh 1-3 shifting issue. The last time I did updates was about a month ago so wonder if any new updates? I only purchased the 2-day FDRS licese

 

[Meterman]

I have to get my VIN checked for updates. I've done my own Module updates as the dealerships here suck and are usually backlogged for weeks, it's how I finally resolved the harsh 1-3 shifting issue. The last time I did updates was about a month ago so wonder if any new updates? I only purchased the 2-day FDRS licese

the reverse brake assist is a well known issue. hopefully you can fix it but the first time around it took 6 hrs becasue there were so many modules they had to update, not sure why it only took 3 hrs this last time though.

 

[powerboatr]

did you get the tsb done on the brake controller and trailer stuff?
my 21 acted funny as did the 22 they did the tsb and its worked great
on my trailer i had a dead breakaway battery and it kept setting trailer faults

 

[Deleted member 8023]

I believe so as got the OTA to update a while back about the trailer then this past month I followed the ECU module programming guide using FDRS with a 2-day FDRS license. I applied all the updates waiting out there for it. I'm wondering if I missed something. I'll hook up and look for any diag codes in the system.

The odd thing now is yesterday the errors wouldn't go away and they were there this morning. I drove to the store and after being in the store for 45 min came out with no errors on startup plus cross traffic works again. Don't like random issues and then gone without doing anything Going to test hooking up with the truck off and turn the truck off to disconnect and see if the issue returns.

 

[Deleted member 8023]

Tested 4 times and turned the truck off when connecting and disconnecting with no errors. Hopefully, that is how it will remain.

 

[Deleted member 8023]

Tested 4 times and turned the truck off when connecting and disconnecting with no errors. Hopefully, that is how it will remain.

Issue back after moving camper Just a bit ago random truck alarm went off. Thinking might be done with the truck and move to something else.

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