I saw this on a tbn post
F11 code is the sensors on the DPS not reading properly and sending the CPU false readings. Basically there is a patch for the software that must be installed. This will make the sensors communicate properly with the CPU.
im so glad my tractor is 10 yo dumb tractor. I hate error codes
I just had the same code, and it turned out to be the hand throttle lever. Either way you would need to have the dealer's computer to plug it into to diagnose it properly. Luckily, you're still under warranty.
I had the same error on my XR4145 last fall. Turned out to be a faulty hand throttle. Dealer replaced it under warranty, and I have not had problems since.