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Hi all
X150 my tpms warning shows a pressure loss on all four wheels. The indicator cycles from wheel to wheel in turn. Wheel sensors are ok. I’m thinking something is not communicating with the control unit. As all parts are expensive I’m reluctant to change parts until it works. Any ideas please.

Other than checking for damaged wiring, there's not a lot you can do without either a Jaguar or Autologic diagnostics session. As you say, changing components, one by one in hope, would be an expensive way of solving the problem. An hour's diagnostic time at a Jaguar specialist would likely be the most cost-effective way forward. Mike.