Hyundai Ioniq: High Voltage Battery System / Power Relay Assembly (PRA). Description and operation

Hyundai Ioniq (AE) 2017-2024 Service Manual / Hybrid Control System / High Voltage Battery System / Power Relay Assembly (PRA). 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]

    Sub Battery Pack Assembly (Sub-BPA). Repair procedures

    Check the target charging voltage when replacing with a new module Fault Code1.Turn OFF the ignition switch.2.Connect the diagnostic tool device to the self-diagnosis connector (DLC)...

    Power Relay Assembly (PRA). Repair procedures

    Removal    • Be sure to read and follow the "General Safety Information and Caution" before doing any work related with the high voltage system...

    Other information:

    Hyundai Ioniq (AE) 2017-2024 Service Manual: Safety Plug. Specifications


    Specification Item Specification Rated Voltage (V)400Rated Current (A)80Fuse Rated Current (A)125Fuse Melting TimeRated Current x 110%Min. 4 hrRated Current x 200%5 - 100 secRated Current x 300%0...

    Hyundai Ioniq (AE) 2017-2024 Service Manual: Troubleshooting


    Troubleshooting Symptom Suspect area Remedy Engine misfire with abnormal internal lower engine noises.Worn crankshaft bearings.Loose or damaged engine drive plate.Replace the crankshaft and bearings as required...

    Categories

    Hybrid Vehicle Interior Overview

    Hyundai Ioniq. Hybrid Vehicle Interior Overview

    1. Door lock/unlock button
    2. Driver position memory system
    3. Side view mirror control switch
    4. Central door lock switch

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