Hyundai Ioniq (AE): Hybrid Motor Cooling System / Electric Water Pump(EWP). Description and operation

Description
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Function : It circulates the coolant for the hybrid system (HPCU, drive motor, and HSG).
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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.
EWP then sends its operation status to MCU through the CAN communication.

    Specifications Cooling system CoolantSpecified coolant LLC - 10 Quantity Approx. 3.2L (0.85 US gal, 3.38 US qt, 2.82 lmp qt.)

    Component location1. HPCU (Hybrid Power Control Unit)(LDC+MCU+HCU+Reservoir)2. Hybrid drive motor3. Hybrid starter generator (HSG)4. Electrical radiator5.

    Other information:

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Repair procedures

    Service Point Target Auto Calibration (SPTAC)When you need calibration :– Front view camera is removed and mounted– Replace front view camera with a new one – Windshield glass changed– Front view camera coupler of the windshield glass is deformedService Point T

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Repair procedures

    Diagnosis with GDS1.REAR CORENER RADAR system defects can be quickly diagnosed with the GDS. GDS operates actuator quickly to monitor, input/output value and self diagnosis.2.Connect the cable of GDS to the data link connector in driver side crash pad lower panel, turn the power on GDS.

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