KIA Niro: Battery Pack Assembly Troubleshooting Chart
Kia Niro - First generation - (DE) (2017-2022) - Service and Repair Manual / Service Highlight / High Voltage Battery System / Battery Pack Assembly Troubleshooting Chart
Inspection
Warning
- 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 Inspection
- Connect the KDS to the Data Link Connector (DLC).
- Turn the ignition switch ON.
- Check the SOC in KDS service data.
SOC : Above 5%
Battery Voltage Inspection
- Connect the KDS to the Data Link Connector (DLC).
- Turn the ignition switch ON.
- Check the cell and pack voltage in KDS service data.
Cell Voltage : 2.5 - 4.2V
Pack Voltage : Above 360V
Cell volage deviation : 40 mV or less
Voltage Sensing Circuit Inspection
- Shut off the high voltage circuit.
(Refer to "High Voltage Shutoff Precedure")
- Remove the battery temperature sensor.
(Refer to "Battery Temperature Sensor")
- Check the continuity of the wiring between the harness connectors of the module and BMS ECU.
Specification : below 1Ω
- Connect the harness connectors to the BMS ECU.
- For checking the short circuit to ground, measure resistance between the module harness connectors and chassis ground.
Specification : 1MΩ or higher
Isolation Resistance Inspection
- Connect the KDS to the Data Link Connector (DLC).
- Turn the ignition switch ON.
- Check the isolation resistance in KDS service data.
Isolation Resistance : Around 1.0 MΩ
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