How to Perform Hyundai ME17.19.21.1 IMMO OFF with FormulaFlash
FormulaFlash programmer supports IMMO OFF functions for Korean Kia Hyundai ME17.9.21.1 ECU in the device without 3rd party software/devices. Quick search for ME17.9.21.1 ECU. Available on bench and boot mode. Choose bench mode connection. There are 4 versions of bench pinouts for this ECU. Select one that matches your ECU. Set up bench connection according to the diagram. Connect ECU. Read and save eeprom & flash data. Click IMMO Off function . It will save flash again. Then do IMMO OFF. Click Yes to correct checksum. Then process data. Write data successfully. It’s done. Install ECU back to car.