Kia Niro: High Voltage Battery Control System / Pre-Charge Resistor Schematic diagrams

Circuit Diagram

[B03-C] (Relay Control)

[B03-S] (Relay Control)

Pre-Charge Resistor Description and operation
Description Built into the Power Relay Assembly (PRA), the Pre-Charge Resistor protects the high voltage circuit by limiting the current while the inverter capacitor is being charged. ...

Pre-Charge Resistor Repair procedures
Removal    • Be sure to read and follow the “General Safety Information and Caution” ...

Other information:

Kia Niro (DE HEV) Owners Manual: Engine Coolant
The high-pressure cooling system has a reservoir filled with year round antifreeze coolant. The reservoir is filled at the factory. Check the antifreeze protection and coolant level at least once a year, at the beginning of the winter season, and before traveling to a colder climate. CAUTION ...

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 ...

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