TCU Status

First we need to establish good terminology.

There are oldest transmission with external TCU, those are mostly controlled by on/off solenoids. We have some untested unfinished code to handle those, this work is totally halted as of Dec 2022.

Then we have some complex transmissions with external TCU like Honda, or clutch-to-clutch like Aisin 09G/09M, and modern transmissions with TCU located inside the transmission assembly. For those we are focusing on CAN integration only, not looking to re-invent the TCU itself.