Starting from the USA in 2005 and followed by the European Union commencing in 2012, legal requirements concerning Tyre Pressure Monitoring Systems will be introduced in China as well. Changes of pressure dependent physical tyre properties such as tyre vibration behaviour which are included in the ESC-wheel speed signals, indicates pressure loss in an indirect manner (indirect Tyre Pressure Monitoring Systems). This paper presents the fundamentals to evaluate the pressure dependent tyre vibration behaviour at tyre test rigs. A rigid ring tyre model is used to analyse the system characteristics theoretically. Based on five tyres the test method is validated by comparing the results with driving test results.