Having had fault codes appearing regularly my 2007 SC I decided to look a little further into its operation. A little while ago I fitted 19" RR Vogue genuine alloy wheels with new TPMS sensors and 255 55 R19 Mud Tires as I do spend time off road on muddy farm tracks. Everytime I used the RR after about 30 mins of driving on road the "TPMS fault system inoperative" would flash up. Having a fault diagnostic system I would immediately check the codes and it was always the same fault "sensor/ antennae". But the sensors were all within range and no battery low warnings or aerial issues. So after about 600 miles I removed the wheel/tire combination and fitted back the original 20" fitted with 255 50 R20 Pirelli Scorpion Zeros. All the issues went away. So after digging in the LR workshop manual I found out the following. The TPMS system does not only monitor the Pressure but also the Temperature and Centripetal force. Conclusion; the mud tires on the road were generating extreme heat and tripping the fault codes. I also read that if you change wheel size the CCF for the vehicle needs to be changed. Hope this helps someone as it did me.

The popular solution is to disable TPMS  Got - 2017 SDV8 Autobiography in Loire Blue
Had- 2008 TDV8 Vogue SE in Java black
Had - 2007 S/C in Stornoway Grey

The popular solution is to disable TPMS

+1 Easy enough to do with the good old IID Tool.

Thanks for the replies. Having read the numerous post about TPMS I was were of the ability to turn off the system. My two diagnostic systems howver do not offer this faculty and I really can not justify purchasing a third. Happy Days.