Hyundai Ioniq: Hybrid Control System / Specifications

Hyundai Ioniq (AE) 2017-2023 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) 2017-2023 Service Manual: Pre Charge Relay. Description and operation

    DescriptionThe Power Relay Assembly (PRA) consists of the positive and negative main relays, pre-charge relay, pre-charge resistor and battery current sensor. It is located inside the battery pack assembly and controls the high voltage power circuit between the high voltage battery and inverter by the control signal of BMS ECU...

    Hyundai Ioniq (AE) 2017-2023 Service Manual: General information

    Tightening Torque Table of Standard Parts Bolt (Nominal diameter) Nut (Nominal diameter) Bolt/ Nut Normal screw Torque Nm (kg.m, Ib-ft) Nominal diameter...


    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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