Are you sure those rims have the sensors?
The wheels might have been off a pre lci car, many of which didn't have tpms fitted, just worked on rotational differences.
I know he said his car was 2017, but he might have bought them from an earlier car.
If not, just buy a set of sensors from amazon for £60 and have them fitted.
Fuck paying £150 for diagnostics, that is ridiculous.
Many tyre centres can run a scanner over each sensor and tell if it is working and what frequency.
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