Question ABS light

[saddlebum13]

I have a 2005 F-350. When towing my 28 ft 5th wheel camper the ABS light will come on after a couple of hours. It might go off after a while or stay on until I shut the truck off and restart it. It does not come on if I am not towing.
Any ideas?

 

[melmount]

i unplugged abs on my excursion, brakes worked better IMO.