Key product feature:
TPMS tire pressure sensor on models in & after 2012 can be read, only with some specified diagnostic tools.
EL-50449 tpms reset tool can help you reprogram all tires much easier just with 3 steps.
Ensure that the vehicle is in the TPMS Learn Mode, and follow the service procedure. Hold tool against the sidewall of the tire, near the valve stem. Depress Learn button while holding the tool against the tire sidewall.
Tire pressure monitor sensor activation tool is simple, fast and easy to use, activates the individual TPM sensor just like no more than making an instant coffee .

In which situation it uses
Most of Ford vehicles equipped with a 315 or 433 MHz (TPMS) Tire Pressure Monitoring system,.a "Sensor Re-Learn Procedure" must be performed after tire rotations, Remote Control Door Lock Receiver Module replacement or Tire Pressure Sensor replacement.This re-learn procedure can be performed by using EL-50449 special tire pressure tool

Operation reference :
Step 1 - Enter leaning mode
Set the gearshift lever to "P"
Put the ignition switch to “ON”
Enter the interface of tire pressure display by DIC
DIC shows "Press Set / Ctrl to re-learn"
Press “Set / Ctrl”
The turn signal is lighted for 3 seconds and the horn beep sound twice to enter the learning mode

Step 2 - Read tire pressure sensor information
Start from the front-left wheel,
Make the J-46079 or Diagnostic Tool EL-50449 antenna up against the valve core position & close to the rim of the tire sidewall
El-50449 tire pressure tool starts by the start switch
Successful to read the tire pressure sensor information when the horn bleeps once

Step 3 - Same method to read other tire pressure information
Follow the instuction above to read tire pussure of the front-right, rear-right, rear-left wheels.