thanks for that,but i have disconnected the TPS module under the radio,i am also fitting 4 new tyres and will remove the sensors as the battery,s in sensors are exhausted.this is the 3rd car i have had with TPM and not one of them has been any bloody good!! there is no way that i am going to pay £500 for new sensors and fitting.i have been driving over 50 years and feel i am capable of knowing when tyres need air,the steering lets you know quick enough.