been using the upfitter switched high idle mod for the last two months been working great and today it did not work. what are some things to check. did i understand that if there is a fault in the brake lights that it would not work, such as a burnt out light? what else should i check? ive never fully kicked the ebrake on, just enough to set the light which has always worked in the past. on our f550 rollback sometimes it takes awhile for it to kick in, i think because the computer has to make sure everything is where it wants it within specs?

 

well i didnt but my Girlfriend did..... kept flipping the number 1 switch with no results and she says, i thought you used number 4........ guess what happend when i flipped number 4.... yup im an idiot. the f550 at work uses number 1 for pto ......

 

Priceless!