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Home >> Hyundai >> 2013 >> Equus Signature >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - 5.0L >> 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 (Neutralization) mode" procedure with GDS. (Refer to LEARNING DESCRIPTION -Smart Key)
  2. After finishing "ECM Neutral mode", perform "Key teaching" procedure with GDS. (Refer to LEARNING DESCRIPTION -Smart Key)

[In the case of installing new ECM]
Perform "Key teaching" procedure with GDS. (Refer to LEARNING DESCRIPTION -Smart Key)
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 (Neutralization) mode" procedure with GDS. (Refer to LEARNING DESCRIPTION -Smart Key)
  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 ECM & TCM cover (A).
    Fig 1: Identifying ECM & TCM Cover
    G08830193Courtesy of HYUNDAI MOTOR AMERICA
  3. Disconnect the front harness (A), and then disconnect the ECM connector (B) and the TCM connector (C).
  4. Remove the harness installation nut (D) and ground bolt (E), and then remove the harness (F).
  5. Remove the ECM & TCM bracket installation bolts (G) and nut (H).
    Fig 2: Identifying ECM, TCM Connector, Front Harness, Mounting Bolts And Nut
    G08830194Courtesy of HYUNDAI MOTOR AMERICA
    Fig 3: Identifying Harness, Mounting Bolts And Nut
    G08830195Courtesy of HYUNDAI MOTOR AMERICA
  6. After removing the installation nuts (A), remove the TCM (B) from the bracket
    Fig 4: Identifying TCM And Mounting Nut
    G08830196Courtesy of HYUNDAI MOTOR AMERICA
  7. After removing the installation nuts (A), remove the ECM (B) from the bracket
    Fig 5: Identifying ECM And Mounting Nut
    G08830197Courtesy of HYUNDAI MOTOR AMERICA
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