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Home >> Hyundai >> 2015 >> Sonata Hybrid >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transaxle Control System (HEV) >> Transaxle Control Module (TCM) >> Repair Procedures >> Removal
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Repair Procedures: Removal

NOTE: When replacing the TCM, the vehicle equipped with immobilizer must be performed the procedure as below.
[In the case of installing used TCM]
  1. Perform "Neutral mode" procedure with GDS.

    (Refer to "IMMOBILIZER SYSTEM DIAGNOSIS - SONATA HEV article")

  2. Insert the key and turn it to the IGN ON and OFF position.

Then the TCM key register process is completed automatically.
[In the case of installing new TCM]
  • Insert the key and turn it to the IGN ON and OFF position.

Then the TCM key register process is completed automatically.
  1. Turn ignition switch OFF and disconnect the negative (-) battery cable.
  2. Disconnect the TCM Connector (A).
    Fig 1: Identifying TCM Connector
    G10588811Courtesy of HYUNDAI MOTOR AMERICA
  3. Remove the air cleaner assembly.

    (Refer to "ENGINE INTAKE & EXHAUST SYSTEM - SONATA HEV article")

  4. Remove the mounting bolts (A)/nut (B), and then remove the TCM (C).
    Fig 2: Identifying TCM Mounting Bolts, Nut & TCM
    G10588812Courtesy of HYUNDAI MOTOR AMERICA
    Fig 3: Identifying TCM
    G10588813Courtesy of HYUNDAI MOTOR AMERICA