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

Hyundai Ioniq (AE) 2017-2024 Service Manual / Hybrid Control System / High Voltage Battery Control System / Pre-Charge Resistor. Repair procedures

Removal
1.
Shut off the high voltage.
(Refer to Hybrid Control System - "High Voltage Shut-off Procedures")
2.
Remove the rear seat cushion.
(Refer to Body - "Rear Seat Assembly")
3.
Remove the rear door scuff trim.
(Refer to Body - "Door Scuff Trim")
4.
Remove the upper frame (A) after loosening the mounting bolts and nuts.

5.
Remove the high voltage battery rear cover (A) after loosening the mounting bolts and nuts.

6.
Remove the inlet cooling duct.
(Refer to Hybrid Control System - "Cooling Duct")
7.
Disconnect the pre-charge resistor (A).

Installation
   
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.
1.
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)
Inspection
1.
Remove the pre-charge resistor.
(Refer to High Voltage Battery Control System - "Pre-Charge Resistor")
2.
Check for continuity between the terminals using an ohmmeter.
Specification : 40Ω [20°C (68°F)]

    Pre-Charge Resistor. Schematic diagrams

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