Kia Niro: High Voltage Battery System / 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 battery and inverter by the control signal of BMS ECU.
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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) |
| [PRA Operation Sequence] |
Power Relay Assembly (PRA) Specifications
Specification
Power Relay Assembly
(PRA)
Item
Specification
Rated Voltage (V)
240
Rated Current (A)
...
Power Relay Assembly (PRA) Repair procedures
Removal
•
Be sure to read and follow the “General Safety Information and
Caution” ...
Other information:
Kia Niro 2017 (DE HEV) Service Manual: Relay Box (Engine Compartment) Repair procedures
Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Pull out the relay from the engine compartment relay block.
Power Relay (Type A)
Check for continuity between the terminals.
1.
After supplying power to ...
Kia Niro 2017 (DE HEV) Service Manual: Sunroof Switch Repair procedures
Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Open the sunglass case cover from the overhead console and remove the
2 screws holding the overhead console. Disconnect the switch connector and
Map lamp connector, and then r ...
