This is a tutorial of how to use Autel MaxiTPMS TS508 to rewrite a 2014 Ford F-150 tire pressure value. It may help when you have just changed tires of your vehicle.
The standard tire pressure value of the front wheel is 350kpa/50psi, the maximum tire pressure value of the rear wheel is 450kpa/65psi. The front and rear tire pressures on placard are 300kpa/44psi. 
Procedure
Step1. Connect Autel TS508 to read the front and rear tire pressures
Identify vehicle model:
Advanced mode >> Ford >> F-150 >> 01/2011-12/2014 >> Tire type/pressure selection 
Connect the Autel TS508 to Ford OBD and turn ignition on.
Communicating with the vehicle, please wait...
OK >> Read tire pressure on placard
We found the front and rear tire pressures are different from the tire pressures on placard. They are all 303kpa/44psi. 
Step2. Write tire pressure on placard
So exit back to write tire pressure on placard.
Select and write the value closest to the front tire pressure on placard: 344kpa/50psi.
Select and write the value closest to the rear tire pressures on placard: 360kpa/52psi. [450kpa/65psi(the maximum tire pressure)*0.8(reference coefficient))
Confirm >> OK >> OK
Writing success!!! 
Step3. Read tire pressures on placard again to confirm the change
Here we go back to read tire pressure on placard again.
The TPMS tire pressures on placard have been changed now, the tire pressure value were written successfully.
Press “Save”, save success! 
Job has done!
Rewriting Ford tire pressures value with Autel TS508 TPMS Tool is quite easy and fast. It is one of useful features for TPMS maintenance.
Source:https://www.auteldiag.com/service/how-to-use-autel-ts508-tpms-relearn.html
