The Citroen Bosch MED17.4.4 ECU can be cloned on bench using Launch X431 X-Prog3 with PC Adapter.
Quick Step-by-Step Guide:
1.Original ECU Backup:
- Connect X431 X-PROG3 + PC Adapter to your PC and launch the software.
- Search med17.4.4 and select Citroen C4 Grand Picasso MED17.4.4_TC1793
- Select BENCH mode and review the wiring diagram


- Wire the original Bosch MED17.4.4 ECU according to the diagram

- Read Chip ID, then read and save the original EEPROM and Flash files
- Disconnect the ECU

2.Donor ECU Backup:
- Wire the replacement MED17.4.4 ECU using the same diagram. Read and back up its EEPROM and Flash data

3.Data Writing:
- Load the original EEPROM and Flash files into the software, write them separately to the replacement ECU, and disconnect

Process completed successfully!
Video guide:
Launch X431 ECU Programmer also supports Citroen Bosch MED17.4.4 ECU clone on bench, no need any X431 tablet.







