2021 NV200 [USA] - A/C stopped working, P0532 refrigerant pressure sensor A circuit low

[ZombieDave]

Blows warm air.
Fuses under the dash are all good, A/C button lights up when pressed, fans work ok.
Fuses in the IPDM appear to be ok.
The magnetic clutch on the compressor turns by hand but never engages when the A/C is on.
OBDII shows 07E8/P0532 refrigerant pressure sensor A circuit low.
IPDM self test - not sure how to do this...the ON key followed by 10 presses on the door sensor does not run
the test.

Any suggestions for further diagnostics/fix before I take it to the dealer?