A Method and system for preventing false alarms in a tyre pressure monitoring system

A pressure monitoring system 12 for a tyre 14a of an automotive vehicle includes a first pressure sensor 94 coupled to the wheel, a pressure transmitter 90 coupled to the pressure sensor 94 whereby the transmitter generates a pressure signal. A controller 22 is coupled to the pressure transmitter. The controller 22 receives the pressure signal and in a first stage, compares the pressure signal to a pressure threshold to obtain a sensor status. In a second stage, the controller 22 qualifies the sensor status signal by generating a warning status in response to the sensor status.