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Home >> Hyundai >> 2012 >> Genesis 3.8 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - 3.8L >> Engine Control Module (ECM) >> Repair Procedures >> Removal
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Repair Procedures: Removal

CAUTION: 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 GDS. (Refer to "Immobilizer" in BE group)
  2. After finishing "ECM Neutral mode", perform "Key teaching" procedure with GDS. (Refer to "TEACHING PROCEDURES " in BE group)

[In the case of installing new ECM]
Perform "Key teaching" procedure with GDS. (Refer to "TEACHING PROCEDURES " in BE group)
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 GDS. (Refer to "Smart key" in BE group)
  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. Remove the cover.
  3. Disconnect the ECM connector (A) and the TCM connector (B).
    Fig 1: Identifying ECM, TCM Connectors And Mounting Bolts
    G08834121Courtesy of HYUNDAI MOTOR AMERICA
  4. Remove the ECM & TCM bracket installation bolts (C) and nut (D).
  5. After removing the installation bolts (A), remove the ECM (B) from the bracket.
    Fig 2: Identifying ECM And Mounting Bolts
    G08834122Courtesy of HYUNDAI MOTOR AMERICA