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HOMESERVICE MANUALSHYUNDAI2022IONIQ PLUG-IN HYBRID SELREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE CONTROL SYSTEM (PHEV)ENGINE CONTROL MODULE (ECM)REPAIR PROCEDURESREMOVAL
2022 Hyundai Ioniq Plug-In Hybrid SEL

Repair Procedures: Removal

2022 Hyundai Ioniq Plug-In Hybrid SELSECTION 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 Body Electrical System - "IMMOBILIZER SYSTEM ")

  2. After finishing "ECM Neutral mode", perform "Key teaching" procedure with GDS.

    (Refer to Body Electrical System - "IMMOBILIZER SYSTEM ")

[In the case of installing new ECM] 

Perform "Key teaching" procedure with GDS.

(Refer to Body Electrical System - "IMMOBILIZER SYSTEM ")

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 Body Electrical System - "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. Disconnect the TCM Connector (A).
  3. Disconnect the ECM Connector (B).
    G13562965Courtesy of HYUNDAI MOTOR AMERICA
  4. Remove the ECM (C) from the bracket after removing the screw (A) and nut (B).
    G13562966Courtesy of HYUNDAI MOTOR AMERICA
  5. Remove ECM (B) from the ECM and TCM bracket after loosening the bolt and nut (A).
    G13562967Courtesy of HYUNDAI MOTOR AMERICA
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.