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. |
Turn the ignition switch OFF and disconnect the auxiliary 12V battery negative (-) terminal. |
2. |
Remove the safety plug cover (A) under the rear seat..
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3. |
Unfasten the hook (A) to the direction of arrow.
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4. |
Unfasten the lever (A) to 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: Power Relay Assembly (PRA) Description and operation
Description
The Power Relay Assembly (PRA) consists of the positive and negative main relays,
pre-charge relay, pre-charge resistor and battery current sensor. It is located
inside the battery pack assembly and controls the high voltage power circuit between
the high voltage batte ...
Kia Niro 2017 (DE HEV) Service Manual: Engine Coolant Temperature Sensor (ECTS) Description and operation
Description
Located in the engine coolant passage of the cylinder head, Engine Coolant Temperature
Sensor (ECTS) detects the engine coolant temperature. The ECTS uses a thermistor
with resistance in proportion to the temperature.
The electrical resistance of the ECTS decreases as ...