Hyundai Ioniq: High Voltage Battery Control System / Pre-Charge Resistor. Repair procedures

Hyundai Ioniq (AE) 2017-2023 Service Manual / Hybrid Control System / High Voltage Battery Control System / Pre-Charge Resistor. Repair procedures

Shut off the high voltage.
(Refer to Hybrid Control System - "High Voltage Shut-off Procedures")
Remove the rear seat cushion.
(Refer to Body - "Rear Seat Assembly")
Remove the rear door scuff trim.
(Refer to Body - "Door Scuff Trim")
Remove the upper frame (A) after loosening the mounting bolts and nuts.

Remove the high voltage battery rear cover (A) after loosening the mounting bolts and nuts.

Remove the inlet cooling duct.
(Refer to Hybrid Control System - "Cooling Duct")
Disconnect the pre-charge resistor (A).

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.
Install in the reverse order of removal.
High voltage battery rear cover installation bolt/nut :
7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)
Remove the pre-charge resistor.
(Refer to High Voltage Battery Control System - "Pre-Charge Resistor")
Check for continuity between the terminals using an ohmmeter.
Specification : 40Ω [20°C (68°F)]

    Pre-Charge Resistor. Schematic diagrams


    Battery Current Sensor. Description and operation

    DescriptionBattery Current Sensor is integrated into the Power Relay Assembly (PRA) and measures the current of the high voltage battery during charging or discharging...

    Other information:

    Hyundai Ioniq (AE) 2017-2023 Owner's Manual: Check Lane Keeping Assist (LKA) system, Check Driver Attention Warning (DAW) system,

    Check Lane Keeping Assist (LKA) system (if equipped) Either message is displayed if there is a problem with the Lane Keeping Assist (LKA) System. Have the vehicle inspected by an authorized HYUNDAI dealer. Check Driver Attention Warning (DAW) system This warning message is displayed if there is a problem with the Driver Attention Warning (DAW) system...

    Hyundai Ioniq (AE) 2017-2023 Service Manual: Engine Mounting. Repair procedures

    Removal and InstallationRoll Rod Bracket1.Remove the roll rod bracket (A). Tightening torque Bolt (B) :107.9 - 127.5 N.m (11.0 - 13.0 kgf.m, 79.6 - 94.0 lb-ft)Bolts (C) :49.0 - 63.7 N.m (5.0 - 6.5 kgf.m, 36.2 - 47.0 lb-ft)2.Remove the roll rod mounting support bracket (A)...


    Tilt Steering / Telescope Steering

    Adjust the steering wheel so it points toward your chest, not toward your face. Make sure you can see the instrument cluster warning lights and gauges. After adjusting, push the steering wheel both up and down to be certain it is locked in position. Always adjust the position of the steering wheel before driving.


    NEVER adjust the steering wheel while driving. This may cause loss of vehicle control resulting in an accident.

    Hyundai Ioniq. Tilt Steering / Telescope Steering

    read more

    Copyright © 2023