High Voltage Shut-off Procedures |
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High voltage components: High Voltage Battery Pack Assembly, Power Relay Assembly (PRA), BMS ECU, Hybrid Power Control Unit (HPCU), Hybrid Drive Motor, HSG, Electric A/C Compressor, Low DC/DC Converter (LDC), Power Cable, Electric Compressor etc. |
1. |
Switch "OFF" the ignition and disconnect the negative (-) terminal of the auxiliary 12V battery. |
2. |
Remove the safety plug cover (A) under the rear seat..
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3. |
Unfasten the hook (A) in the direction of arrow.
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4. |
Unfasten the lever (A) in the direction of arrow.
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5. |
Remove the safety plug (A).
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6. |
Wait at least 5 minutes or until the capacitor in the high voltage system is fully discharged. |
7. |
Measure the voltage between the inverter terminals to check that the capacitor in the inverter is discharged completely.
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Kia Niro 2017 (DE HEV) Service Manual: Virtual Engine Sound System Unit Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the glove box housing.
(Refer to Body - "Glove Box Housing")
3.
Disconnect the VESS unit connector (A).
4.
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Kia Niro 2017 (DE HEV) Service Manual: Description and operation
Description
The Hybrid Power Control Unit (HPCU) uses various semiconductors that are supplied
with high voltage, hence generating more heat than engine combustion devices. Overheating
can decrease the efficiency of control devices, restrict proper operation and melt
semiconductor ...