Quick Check Of TPMS
Some car/model years require that you are more accurate when aiming the diagnostic tool at the sensor for an activation to succeed. If an activation fails, realign the diagnostic tool and perform the activation again. First after three failed activation attempts can a sensor be regarded as defective.
The system can be checked, using the diagnostic tool, by activating a read off at the same time as activating the sensors using a special tool.
The special tool is placed against the tire in the place where the sensor is installed, at the same time as you push in a button on the special tool. Then the special tool sends out a signal that activates the sensor so that it starts to transmit signals to Upper Electronic Module. The activated sensor's ID-number and tire pressure are then shown on the display in the diagnostic tool. Note the sensor's id-number and its position.