u/SoggyGrab7725

I am attempting to add trailer brake controller to my 21 f150. I am running into an issue, where it tells me to add 1 to current value there is an F. Am I missing something? I have already installed my trailer brake controller and the new module under the dash.

EDIT: I ended up just putting 1 in this field, the trailer brake seems to be enabled on my truck now, but if you know if this will cause an issue please let me know.