[rs@chip]

Ok I did write the given flash, but car has same behavior ignition turns off after 1 minute and CAS is not recognizes in test.
I found out that CAS can be detected for a few second after plugging it in bench, in that time dtc and part number can be read, after those seconds CAS can't be scanned but still ignition can be turned on

Try encode the cas in time while it comunicate.. if this not work need to chek eeprom coruption or soldering