Hyundai Ioniq: High Voltage Battery Control System / Main Relay. Description and operation

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

Safety Plug. Repair procedures

Removal1.Turn the ignition switch OFF and disconnect the auxiliary 12V battery negative (-) terminal.2.Remove the safety plug cover (A).3.Unfasten the hook (A) and then remove the safety plug (C) by pulling the lever (B) to the direction of arrow...

Main Relay. Specifications

Specification Item Specification ContactRated Voltage (V)450Rated Current (A)80CoilOperating Voltage (V)12Resistance (Ω)20...

Other information:

Hyundai Ioniq (AE) 2017-2024 Service Manual: Fuel Sender. Repair procedures

Removal1.Remove the fuel pump.(Refer to Fuel Delivery System - "Fuel Pump") 2.Disconnect the fuel pump motor connector (A) and fuel sender connector (B).3.Press the fixing hook (A) with a driver and then remove fuel sender (B) in the arrow direction.Installation1...

Hyundai Ioniq (AE) 2017-2024 Service Manual: Inspection mode procedures

Procedure for entering engine forced activation modeIf the engine needs to be running constantly while the vehicle is stopped to inspect emission gas or perform maintenance on the vehicle, follow below procedure to enter engine forced activation mode...