Hyundai Ioniq (AE): High Voltage Battery Control System / Main Relay. Description and operation

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual / Hybrid Control System / High Voltage Battery Control System / Main Relay. Description and operation

Description
The 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.

[PRA Operation Sequence]

    Removal1.Turn the ignition switch OFF and disconnect the auxiliary 12V battery negative (-) terminal.2.Remove the safety plug cover (A).3.Unfasten the hook (A) and then remove the safety plug (C) by pulling the lever (B) to the direction of arrow.

    Specification Item Specification ContactRated Voltage (V)450Rated Current (A)80CoilOperating Voltage (V)12Resistance (Ω)20.

    Other information:

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

    Replacement1.Remove the battery (-) terminal.2.Remove the engine room under cover.(Refer to Engine Mechanical System - "Engine Room Under Cover")3.Remove the heater hose (A) and AEWP hose (B).4.Disconnect the lock pin to remove the heater hose pump connector (A).

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Description and operation

    DescriptionBlcok DiagramFunctions of Front View CameraFront View Camera supports the following functions using the information (lane, light source, vehicle and pedestrian) detected by the front view camera and the vehicle's signal information (CAN communication).

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