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Home >> Kia >> 2021 >> Niro Plug-In Hybrid EX >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Converters and Controllers >> Hybrid Control System (PHEV) >> HPCU (Hybrid Power Control Unit) >> Repair Procedures >> Removal >> Hybrid Power Control Unit (HPCU)

Hybrid Power Control Unit (HPCU)

  1. Shut off the high voltage circuit.

    (Refer to Hybrid Control System - "HIGH VOLTAGE SHUT-OFF PROCEDURE ")

  2. Remove the air cleaner assembly and air duct.

    (Refer to Engine Mechanical System - "AIR CLEANER ")

  3. Remove the ECM & TCM bracket assembly.

    (Refer to Engine Control/Fuel System - "ENGINE CONTROL MODULE ")

  4. Drain the coolant of hybrid motor cooling system.

    (Refer to Hybrid Motor Cooling System - "COOLANT ")

  5. Disconnect the motor power cable connector (A) and HSG power cable connector (B) after loosening the mounting bolts.
    G13352015Courtesy of KIA MOTORS AMERICA, INC.
  6. Disconnect the power cable (A) and inverter power cable (B) from the HPCU.
    G13352016Courtesy of KIA MOTORS AMERICA, INC.

    Information 

    • Remove the inverter power cable in the following order.
    G13352017Courtesy of KIA MOTORS AMERICA, INC.
  7. Disconnect the HCU & inverter (MCU) connector (A).
    G13352018Courtesy of KIA MOTORS AMERICA, INC.
  8. Disconnect the coolant outlet hose & pipe after loosening the mounting bolt (A).
    G13352019Courtesy of KIA MOTORS AMERICA, INC.
  9. Disconnect the coolant inlet hose quick-connector (A).
    G13352020Courtesy of KIA MOTORS AMERICA, INC.
  10. Remove the LDC power outlet cable mounting bolt (A) and ground cable bolt (B).
    G13352021Courtesy of KIA MOTORS AMERICA, INC.
  11. Remove the HPCU (A) after loosening the mounting bolts.
    G13352022Courtesy of KIA MOTORS AMERICA, INC.
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