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Home >> Hyundai >> 2021 >> Tucson Ultimate, FWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - 2.4L >> Engine Control Module (ECM) >> Repair Procedures >> Adjustment >> [If Installing A Used ECM]

[If Installing A Used ECM]

  1. Perform "ECM Neutral Mode" procedure using KDS/GDS.

    (Refer to Body Electrical System - "IMMOBILIZER SYSTEM ")

  2. After finishing "ECM Neutral Mode", perform "Key Teaching" procedure using KDS/GDS.

    (Refer to Body Electrical System - "IMMOBILIZER SYSTEM ")



  1. Perform "ECM Neutral Mode" procedure using KDS/GDS.

    (Refer to "Body Electrical System - "SMART KEY ")

  2. After finishing "ECM Neutral Mode", turn IGN ON then OFF using the smart key or start button. Then the ECM learns information on the smart key automatically.

    (Refer to "Body Electrical System - "SMART KEY ")

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