Repair procedures: Removal

CAUTION: When replacing the ECM, the vehicle equipped with the immobilizer, the procedure below must be performed.
[In the case of installing used ECM]

Perform "ECM Neutral mode" procedure with GDS. (Refer to "IMMOBILIZER SYSTEM " )
After finishing "ECM Neutral mode", perform "Key teaching" procedure with GDS. (Refer to "IMMOBILIZER SYSTEM " )

In the case of installing new ECM

Perform "Key teaching" procedure with GDS. (Refer to "IMMOBILIZER SYSTEM " )

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

In the case of installing used ECM

Perform "ECM Neutral mode" procedure with GDS. (Refer to "SMART KEY SYSTEM " )
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.

Turn ignition switch OFF and disconnect the negative (-) battery cable.
Remove the cover.
Disconnect the ECM connector (A) and the TCM connector (B).

Fig 1: ECM And TCM Connectors
Courtesy of HYUNDAI MOTOR AMERICA
Remove the ECM & TCM bracket installation bolts (C) and nut (D).
After removing the installation bolts (A), remove the ECM (B) from the bracket.

Fig 2: ECM And Installation Bolts
Courtesy of HYUNDAI MOTOR AMERICA