Bosch EDC (Electronic Diesel Control)
Bosch EDC 15
Transplanting the EEPROM from the original ECU to a spare ECU to resolve problems with the immobilizer
ECU swapped for repair. Immobilizer prevents car from being started.
If no flashing tool to read and write the EEPROM is available: You can try to transplant the EEPROM (SO-8 package) from your dead ECU to a spare ECU.