| Component location |

| 1. HPCU (Hybrid Power Control Unit) (LDC+MCU+HCU+Reservoir) 2. Hybrid drive motor | 3. Hybrid starter generator (HSG) 4. Electrical radiator 5. Electric water pump (EWP) |
Description• Function : It circulates the coolant for the hybrid system (HPCU, drive motor, and HSG).• Operating Principles: When the coolant temperature exceeds the limit set in the MCU in the hybrid system, the motor control unit (MCU) sends a command to the electric water pump (EWP) through the CAN communication to operate the EWP.
Removal1.Remove the 12 V battery (-) cable.2.Remove the undercover.(Refer to Engine Mechanical System - "Engine Room Undercover".)3.Drain the coolant from the hybrid cooling system.
Diagnosis With GDS1.The heating, ventilation and air conditioning can be quickly diagnosed failed parts with vehicle diagnostic system (GDS).※ The diagnostic system (GDS) provides the following information.(1) Self diagnosis : Checking the failure code (DTC) and display.
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