Hyundai Ioniq: Hybrid Control System / Specifications

Hyundai Ioniq (AE) 2017-2024 Service Manual / Hybrid Control System / Hybrid Control System / Specifications

Brake Switch
▷ Type : ON/OFF Switch
▷ Specification
Brake Pedal Release
Brake Pedal Push
Switch 1
Max. 0.5V
Battery Voltage
Switch 2
Max. 50 mV
Battery Voltage
Max. 0.5V

Gap [mm (in)]
1.0 - 2.0 (0.039 - 0.079)

DC Fuse
▷ Specification
Rated Current (A)

    Description and operation

    DescriptionThe HCU (Hybrid Control Unit) controls whole hybrid systems and is connected with each control modules (ECM, TCM, MCU, BMS ECU etc.) by CAN interface...

    Components and components location

    Component Location1. HPCU (Hybrid Power Control Unit)2. HCU (Hybrid Control Unit)3. Brake Switch4. DC Fuse    • HPCU includes the HCU (Hybrid Control Unit), Inverters (for Drive Motor, HSG and Electric A/C Compressor), MCU (Motor Control Unit) and LDC (Low DC / DC Converter)...

    Other information:

    Hyundai Ioniq (AE) 2017-2024 Owner's Manual: Low Washer Fluid, Low Fuel, Engine has overheated / Engine overheated, Check High Beam Assist (HBA) system

    Low Washer Fluid (if equipped) This message is displayed if the washer fluid level in the reservoir is nearly empty. Have the washer fluid reservoir refilled. Low Fuel This message is displayed if the fuel tank is almost out of fuel. When this message is displayed, the low fuel level warning light in the cluster will come on...

    Hyundai Ioniq (AE) 2017-2024 Service Manual: Components and components location

    Components Location1. Engine Control Module (ECM)2. Manifold Absolute Pressure Sensor (MAPS)3. Mass Air Flow Sensor (MAFS)4. Intake Air Temperature Sensor (IATS)5. Engine Coolant Temperature Sensor (ECTS) [Water Temperature Control Assembly]6. Engine Coolant Temperature Sensor (ECTS) [EGR Cooler Tube]7...


    Rear Seats

    Folding the rear seat

    The rear seatbacks can be folded to facilitate carrying long items or to increase the luggage capacity of the vehicle.


    Never allow passengers to sit on top of the folded down seatback while the vehicle is moving. This is not a proper seating position and no seat belts are available for use. This could result in serious injury or death in case of an accident or sudden stop. Objects carried on the folded down seatback should not extend higher than the top of the front seatbacks. This could allow cargo to slide forward and cause injury or damage during sudden stops.

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