?About VXSCAN El50448 Tire Pressure Monitor Sensor TPMS Activation Tool OEC-T5 The tire pressure sensor on models in & after 2012 can be read, only with some specified diagnostic tools. Before tire pressure monitoring system works normally properly, the body control module will record ID information of each position in the tire pressure sensor; and use the following methods to read the tire pressure sensor after replacing a tire or wheel speed sensor. ?How to use EL50448 TPMS Activation Tool? Please refer to the specific methods as follows: ?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