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Home >> Hyundai >> 2018 >> Sonata Hybrid Limited >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transaxle Control System (HEV) >> Transaxle Control Module (TCM) >> Repair Procedures >> Removal
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Repair Procedures: Removal

  1. Turn ignition switch OFF and disconnect the negative (-) battery terminal.
  2. Remove the air cleaner assembly and air duct. (Refer to "AIR CLEANER ")
  3. Shut off the high voltage circuit. (Refer to HIGH VOLTAGE SHUT-OFF PROCEDURES ").
  4. Remove the HPCU. (Refer to "HPCU ")
  5. Disconnect the TCM connector (A).
    G12763212Courtesy of HYUNDAI MOTOR AMERICA
  6. Remove the Hybrid Power Control Unit (HPCU) tray (A).

    Tightening torque: 

    8.8 - 13.7 N.m (0.9 - 1.4 kgf.m, 6.5 - 10.1 lb-ft)

    G12763213Courtesy of HYUNDAI MOTOR AMERICA
  7. Remove the TCM (A) after removing the bolt and nut.

    TCM installation bolt/nut: 

    9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

    G12763214Courtesy of HYUNDAI MOTOR AMERICA
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