Kia Niro: High Voltage Battery Control System / Main Relay (+) / (-) Description and operation
| Description |
Main Relay is divided into the positive (+) relay and negative (-) relay. It is integrated into the Power Relay Assembly (PRA) and connects the power supply line and ground line between the high voltage battery and the inverter in accordance with the BMS ECU control signal.
|
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] |
Main Relay (+) / (-) Specifications
Specification
Item
Specification
Contact
Rated Voltage (V)
450
Rated Current (A)
80
...
Main Relay (+) / (-) Schematic diagrams
Circuit Diagram
[B03-C] (Relay Control)
[B03-S] (Relay Control)
...
Other information:
Kia Niro 2017 (DE HEV) Service Manual: Parking Brake Repair procedures
Inspection
Check whether the stroke is within specification when the parking brake pedal
is depressed with 66 lb, 294 N(30 kg) of force. Also, the parking brake alone should
securely hold the vehicle on a fairly steep grade. If the stroke is more or less
than specified, have the p ...
Kia Niro 2017 (DE HEV) Service Manual: DCT Control Module (TCM) Repair procedures
Inspection
1.
TCM ground circuit test : Measure the resistance between TCM and chassis
ground. (Inspect the terminal connected to the chassis ground with the back
of harness connector as the inspection point of TCM side.)
Specification : Below ...
