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]

Perform "ECM Neutral mode" procedure with GDS.
(Refer to "NEUTRALIZATION STATUS CHECK ")
After finishing "ECM Neutral mode", perform "Key teaching" procedure with GDS.

(Refer to "TEACHING MODE PROCEDURE DESCRIPTION (STEP BY STEP) ")
[In the case of installing new ECM]
Perform "Key teaching" procedure with GDS.
(Refer to "TEACHING MODE PROCEDURE DESCRIPTION (STEP BY STEP) ")

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]

Perform "ECM Neutral mode" procedure with GDS.
(Refer to "SMART KEY ")
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.
Disconnect the ECM connector (A).
Remove the air cleaner assembly.

Fig 1: Disconnecting ECM Connector
Courtesy of HYUNDAI MOTOR AMERICA

(Refer to "AIR CLEANER ")
Remove the battery.
(Refer to "AUXILIARY 12V BATTERY ")
Remove the HPCU.
(Refer to "HPCU (HYBRID POWER CONTROL UNIT) ")
Disconnect the high voltage cable bracket (A).

Fig 2: Disconnecting High Voltage Cable Bracket
Courtesy of HYUNDAI MOTOR AMERICA
Remove the ECM bracket assembly (C) after loosening the bolt (A) and nut (B).

Fig 3: Removing ECM Bracket Assembly Bolt And Nut
Courtesy of HYUNDAI MOTOR AMERICA
Remove the ECM (C) from the bracket after removing the screw (A) and nut (B).

Fig 4: Removing ECM From Bracket Screw And Nut

Courtesy of HYUNDAI MOTOR AMERICA