I assume you have the modules connected in series to get enough voltage for the drive unit? Do you intend to rearrange the battery packs to a parallell configuration each time you need to use your 12v supply? You cant have the batteries connected in series and parallell at the same time unless your ...

The foundation of the earth is shaking and I feel a disturbance in the force

Is it only the 12v on pin 3 that is needed or is it some other V2L features that is required for the adapter to work?
@JOHU: The ccs -> chademo test setup you had in the trunk seemed to just be some wiring and a can bridge fixing the communication.. Is that correct?

I assume that if you scrap all ...

There is no reason not having the service switch between cell 48/49 even if the packs are split differently. With a fixed cable between your packs the split can be wherever you want as long as the service breaker is at the correct place.

Thanks Thyristor!
The wake up (0x100) and then the sequence as posted by you with a 30mS interval made my day.

Yes, like I said info is there. But also what I didnt realise, not for the gen 1 EM61 which was what Fogoo actually asked for.

There are several builds that are running the Leaf gearbox in a reverse installation which seems to do fine. Info on how to modify the wiring to be able to do this with original inverter can be found here:
https://www.resolve-ev.com/about-us