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

Hyundai Ioniq (AE) 2017-2022 Service & Repair 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) 2017-2022 Service & Repair Manual: Mode Control Actuator. Repair procedures

Inspection1.Turn the ignition switch OFF.2.Disconnect the mode control actuator connector.3.Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 4.Verify that the mode control actuator operates to the vent mode when connected in reverse.

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

Other information:

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Mode Control Actuator. Repair procedures

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Components and components location

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