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Home >> Hyundai >> 2017 >> Sonata Plug-In Hybrid >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Hybrid Control System (HEV)) >> HPCU (Hybrid Power Control Unit) >> Repair Procedures >> Removal

Repair Procedures: Removal

WARNING: This page is about a different variant/trim than selected.
WARNING: Be sure to read and follow the "GENERAL SAFETY INFORMATION AND CAUTION " before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries.
  1. Shut off the High Voltage circuit (Refer to "HIGH VOLTAGE SHUTOFF PROCEDURE " ).
  2. Remove the air cleaner assembly and duct. (Refer to "AIR CLEANER ")
  3. Drain the coolant of the hybrid motor cooling system and remove the reservoir installed on the HPCU.

    (Refer to Hybrid Motor System - "RESERVOIR ")

  4. Remove the HPCU protector (A).
    Fig 1: Locating HPCU Protector
    G12059541Courtesy of HYUNDAI MOTOR AMERICA
  5. Disconnect the power cable (A) and inverter power cable (B).
    Fig 2: Locating Power Cable And Inverter Power Cable
    G12059542Courtesy of HYUNDAI MOTOR AMERICA

    Information 

    Disconnect the inverter power cable as the procedures below.

    Fig 3: Disconnecting Inverter Power Cable
    G12059543Courtesy of HYUNDAI MOTOR AMERICA
  6. Disconnect the motor power cable (A).
    1. Pull the lever (B), and then pull the connector by rotating the lever (C).
  7. Disconnect the HSG power cable (A).
    1. Pull the lever (E), and then pull the connector by rotating the lever (F).
    Fig 4: Disconnecting HSG Power Cable
    G12059544Courtesy of HYUNDAI MOTOR AMERICA
  8. Disconnect the HCU & MCU integrated connector (A).
    Fig 5: Locating HCU & MCU Integrated Connector
    G12059545Courtesy of HYUNDAI MOTOR AMERICA
  9. Disconnect the coolant outlet hose (A).
  10. Disconnect the LDC power outlet cable (B) and ground cable (C).
    Fig 6: Locating Coolant Outlet Hose, LDC Power Outlet Cable And Ground Cable
    G12059546Courtesy of HYUNDAI MOTOR AMERICA
  11. Remove the power cable mounting bracket (A).
    Fig 7: Locating Power Cable Mounting Bracket
    G12059547Courtesy of HYUNDAI MOTOR AMERICA
  12. Remove the installation bolts (A), and then remove the HPCU from the vehicle.
Fig 8: Locating HPCU Installation Bolts
G12059548Courtesy of HYUNDAI MOTOR AMERICA