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 Owner's Manual: LCD Display Modes (for cluster type A)

Edit settings after shifting to P/ Shift to P to edit settings Either message appears if you try to adjust the User Settings while driving. For your safety, change the User Settings after parking the vehicle, applying the parking brake and moving the shift lever to P (Park)...

Hyundai Ioniq (AE) 2017-2024 Service Manual: 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. Failure to follow the safety instructions may result in serious electrical injuries...