Hyundai Ioniq (AE): Hybrid Motor Cooling System / Description and operation

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual / Hybrid Motor System / Hybrid Motor Cooling System / Description and operation

Description
•
Various devices containing semiconductor are used in HPCU.
And heat is generated when the HPCU operates.
•
These devices are connected to the high voltage directly and cause heat hotter than the electrical devices of an internal combustion engine.
•
Overheat reduces the efficiency of control devices, hindering operational control.
Also, the semiconductor elements may melt under excessive heat (The device may remain constantly turned on.)
Such overheat may become the cause of vehicle malfunction.
Hybrid Motor Cooling System Circuit

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

    Other information:

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

    Replacement1.Disconnect the negative (-) battery terminal. 2.Remove the heater and blower assembly.(Refer to Heater - "Heater Unit") 3.Loosen the mounting screws and remove the driver's temperature control actuator (A).4.Remove the heater core cover (A) after loosening the mounting screws.

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

    Inspection1.Connect the battery voltage and check the blower motor rotation.2.If the blower motor does not operate well, substitute with a known-good blower motor and check for proper operation.3.Replace the blower motor if it is proved that there is a problem with it.

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