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

Hyundai Ioniq (AE) 2017-2025 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) 2017-2025 Service Manual: Repair procedures

Inspection[Motor]1.Turn the ignition switch OFF.2.Disconnect the EEGR valve connector.3.Check that the EEGR valve is stuck by foreign material. 4.Measure resistance between motor 1 and 3 control terminals of the motor. 5.Check that the resistance is within the specification...

Hyundai Ioniq (AE) 2017-2025 Owner's Manual: Wipers and Washers

A : Wiper speed control · MIST – Single wipe · OFF – Off · INT – Intermittent wipe · LO – Low wiper speed · HI – High wiper speed B : Intermittent control wipe time adjustment C :Wash with brief wipes Windshield Wipers Operates as follows when the Engine Start/Stop button is in the ON position...