update:
This morning I was able to get INPA up and running on my Windows 10 laptop. This allowed me to scan the EHCII module, which showed the same error codes for the front right sensor, despite it being replaced.

There was also a plausibility error, however I cleared this before reading.

Looking at the voltage status of each sensor, it is clear that the module is not seeing the sensor

I inspected the loom and connector when I installed the new sensor, as well as stripping and replacing the protective sheathing. I could not identify any damage.
Therefore, the error source is either
a) damage to the sensor loom between the module and the sensor, or
b) the calibration by the first shop has somehow corrupted the module
c) the module is damaged.

The good news is that the physical system appears in good health, with good accumulator pressure, pump temperature and good control response!

I also noted the following strange numbers in the calibration screens.

The counts for the front right and rear right seem at odds with the rest of the system - does this perhaps point to an error in the calibration?

My next step is to gain access the EHCII module and do an actual measurement of the FR sensor output. This will confirm or rule out a break in the sensor loom.

If there is a voltage reading physically at the module, it indicates that my EHCII module is most likely faulty. I may responsible the shop who performed the FL air spring install and the original calibration and demand that they at least partly contribute to the cost of a new module. This error was certainly not present a week ago.

Attached Images