Hyundai Ioniq (AE): High Voltage Battery System / Battery Pack Assembly. Repair procedures

Inspection[Battery Pack Assembly Troubleshooting Chart]    • For SOC check, refer to "SOC Inspection"• For voltage check, refer to "Battery Voltage Inspection"• For battery voltage sensing circuit, refer to "Voltage Sensing Circuit Inspection"• For isolation resistance check, refer to "Isolation Resistance Inspection" [SOC Level and Follow-up] SOC Symptom Warning Lamp Follow-up MIL Service Fuel • Normal ---  10 - 15% • Motor torque limite (Acceleration delay)--ON• Refuel and check the SOC againON--• Repair the MIL or Service Lamp related system• Charge the battery by starting the engine• Refuel if necessary ONON--ON-OnONON 5 - 10% • EV Mode inhibited • FATC Inhibited • LDC Inhibited --ON• Refuel and check the SOC againON--• Repair the MIL or Service Lamp related system• Charge the battery by starting the engine • Refuel if necessaryONON--ON-ONONON 0 - 5% • Impossible to start ON--• Repair the MIL or Service Lamp related system• Start the engine with GDS to charge the battery• Refuel if necessary ONON--ON-ONONON 0% ON--• Repair the MIL or Service Lamp related system• If necessary, Replace Battery Pack• Refuel if necessary [SOC Inspection]1.

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).