Thank you for answering.
At the beginning I did not have ETACS at all and I got the car charging from the wall!
All the can communication worked. I could diagnose EV-ECU and BMS trouble codes and live data. Instrument cluster worked and all the error lights were on.
I hope you are wrong about Etacs programmability. In the etacs module data there is two lines for vin. One is etacs modules original vin and other is current vin. And in the manuals somewhere there was written about how to program EV-ECU and etacs communication going right.
I have an other idea:
If it's not possible to recode the vin and immobilizer key, then I have original etacs broken PCB where IC-s are physically ok but connetors are ripped off and pcb is bent. What if I desolder the EEPROM chip from old etacs and solder to the working C-zero etacs? Is the immo and vin data all in the eeprom or should I replace the microcontroller also?
I am afraid if I do that and it will not work I have to buy another etacs, used ones are not available. New one is almost 280€ and I do not want to now how many months it ships from Japan to Estonia.
I have to get used ABS module also, will there be also similiar compability issues?
LIN bus is only for steering column switches. That is not connected at all. Immobilizer key ring "antenna" is directly connected to etacs module. I have double checked that and even measured with multimeter. Also in the ecu errors I have one witch says that another car key is learnt, that shows its working.
I really do not want to go to the dealer because there is very little "car" left.