TPMS - can you help please? (VCDS)

[Dubbs]

Can someone give me a steer on this please?

TPMS keeps coming up with fault on the dashboard - not related to a particular tyre, just a TPMS yellow fault in the dash

I go to TPMS and can see all tyres including spare are green but not registering any Temp or Pressure values.

Reinitialising doesn't do the job.

How can I diagnose this with VCDS and anything specific I can do that kicks it back in to life?

Any help or pointers to thread, stickies etc., I've missed would be gratefully received

Thanks

D.