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]

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Power Relay Assembly (PRA). Repair procedures

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