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Home >> Hyundai >> 2024 >> Tucson Hybrid N Line >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (HEV) >> Engine Control Module (ECM) >> Repair Procedures >> Removal
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Repair Procedures: Removal

WARNING:
  • When replacing the ECM, the vehicle equipped with the immobilizer must be performed procedure as below:

[In the case of installing used ECM] 
  1. Perform "ECM Neutral Mode" procedure with diagnostic tool.

    (Refer to Body Electrical System - " NEUTRALIZATION STATUS CHECK  ") 

  2. After finishing "ECM Neutral Mode", perform "Key teaching" procedure with diagnostic tool.

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


[In the case of installing new ECM] 
  • Perform "Key teaching" procedure with diagnostic tool.

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

CAUTION:
  • When replacing the ECM, the vehicle equipped with the smart key system (Button start) must be performed procedure as below:

[In the case of installing used ECM] 
  1. Perform "ECM Neutral Mode" procedure with diagnostic tool.

    (Refer to Body Electrical System - " NEUTRALIZATION STATUS CHECK  ") 

  2. After finishing "ECM Neutral Mode", insert the key (or press the start button) and turn it to the IGN ON and OFF position. Then the ECM learns the smart key information automatically.

[In the case of installing new ECM] 
  • Insert the key (or press the start button) and turn it to the IGN ON and OFF position. Then the ECM learns the smart key information automatically.
  1. Turn ignition switch OFF and disconnect the negative (-) battery cable.
  2. Disconnect the ECM Connector (A).
    G16119938Courtesy of HYUNDAI MOTOR AMERICA
  3. Remove the ECM & bracket (A) after loosening the bolts and nut.

    Tightening torque: 

    9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb.ft)

    G16119939Courtesy of HYUNDAI MOTOR AMERICA
  4. Remove the ECM (A) from the bracket after loosening mounting bolt (B).

    ECM Mounting bolt: 

    9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb.ft)

    G16119940Courtesy of HYUNDAI MOTOR AMERICA