for one, is this sticker on the top of the PCS some kind of market indicating hardware revision? or just a production serial number?
This is on my PCS, out of a 2020 model 3, my working theory is the last 3 digits are the hardware version, in this case [01-C], and the first section is the core part number, [1135558]
For comparison, here the same sticker from a bunch of different PCS' listed on ebay
From a 2018, going by the tag. [01-C]
This is also from a 2018 [01-C], but im almost certain its a duplicate listing of the above 2018 since it has the same orange streak, im wondering if the seller double-tagged it by accident or something?
This MIGHT be from a 2019, the listing doesn't say beyond a single mention of 19 for the year [00-D]
from a 2021 M3 [04-A]
and this is from a 2022 model year [04-A]
For another, is there a way to query the PCS for its internal tesla firmware version? or is that entirely opaque from the user perspective?
the web interface has this, but i believe that's just the open source controller's firmware version