Hyundai ME17.9.1 ECU IMMO OFF by Xhorse Multi Prog

 Immobilizer deactivation (Immo Off) is a common procedure for Hyundai and Kia vehicles with the ME 17.9.1 ECU, often required after ECU repairs, key loss, or engine swaps. This guide outlines key steps and considerations.

Here we will show how to do Hyundai ME17.9.1 ECU immo off with xhorse multi prog programmer.

Select Kia Bosch ME17.9.1 ECU.

Check wiring diagram.

Connect ECU with multi prog.

Read and save int eeprom.

Read and save flash data.

Go to Tool tab- Turn off immo.
Select Hyundai-Elantra-ME17.9.11. Load original flash data.

Hit Turn off the immo.

Generate immo off file and save.

Load immo off file and write data to ECU with multiprog.

Verify checksum correction.

Write immo off data successfully.

IMMO OFF is done.