Sounds like your Fiat 500e has thrown you some serious curveballs! Those pesky issues with the BPCM and PIM likely stem from the HV battery being below its minimum voltage. Dealerships often push for fixing the PIM first, but let’s be real, that doesn’t always do the trick for the HV battery.
Just make sure that whoever’s tackling that job, gives the whole system a good flush! Failing to do so could lead to pieces getting dislodged, and trust me, that can mess up the compressor big time.