Kia Niro: High Voltage Battery Control System / 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.
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1. High Voltage Power Terminal (-) 2. High Voltage Power Terminal (+) 3. Battery Current Sensor 4. Inverter Power Terminal (-) 5. Inverter Power Terminal (+) 6. Pre-Charge Resistor |
7. Main Relay (+) 8. Pre-Charge Relay 9. Main Relay (-) 10. Power Relay Assembly Connector (Battery current sensor signal input) 11. Power Relay Assembly Connector (Main relay control) |
Pre-Charge Resistor Specifications
Specification
Item
Specification
Resistance (Ω)
40 [20°C (68°F)]
Rated power (W)
40
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Pre-Charge Resistor Schematic diagrams
Circuit Diagram
[B03-C] (Relay Control)
[B03-S] (Relay Control)
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Other information:
Kia Niro (DE HEV) Owners Manual: Steering wheel remote control
❈ The actual features in the vehicle may differ from the illustration.
(1) MUTE
Press to mute audio output.
(2) MODE
Press the button to change the mode in the following order: Radio ➟ Media.
(3) VOLUME
Press to adjust the volume. (4) UP/DOWN
Press the button in radio mode ...
Kia Niro 2017 (DE HEV) Service Manual: Knock Sensor (KS) Description and operation
Description
Knocking is a phenomenon characterized by undesirable vibration and noise that
can cause engine damage. Knock Sensor (KS) is installed on the cylinder block and
senses engine knocking.
When knocking occurs, the vibration from the cylinder block is applied as pressure
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