Question: I encountered a problem with the Vitara EDC16C3. KT200 successfully read and wrote the ECU via OBD, and the checksum was also correct. However, the car does not start.
I have already tried writing on PW, which was taken care of just like the Mowiles key tool, and everything is functioning.

Answer: There is a manual available for that EDC16C3 ECU, which contains information about the immobilizer (immo) system. Although I can’t recall the exact details, I usually perform the procedure in BDM mode. It is possible that the EEPROM has been damaged, and EDC16C3 ECU has an immo-related issue.
The best solution in such cases is to do in BDM mode; unfortunately, there is no known solution for immobilizer off.
Another possibility to consider is a checksum issue.

By following these steps, you should be able to troubleshoot the problem with the KT200 ECU Programmer while performing read and write operations on the Vitara EDC16C3. Any questions on ECUHELP KT200, please feel free to contact at Whatsapp: