Kia Niro: High Voltage Battery System / Power Relay Assembly (PRA) Repair procedures
| Removal |
|
| 1. |
Shut off the high voltage circuit. (Refer to Hybrid Control System - “High Voltage Shutoff Procedure”) |
| 2. |
Remove the rear seat cushion. (Refer to Body - "Rear Seat Assembly") |
| 3. |
Remove the rear door scuff trim. (Refer to Body - "Door Scuff Trim") |
| 4. |
Remove the cooling duct. (Refer to High Voltage Battery Cooling System - "Cooling Duct") |
| 5. |
Remove the upper frame (A) after loosening the mounting bolts and nuts.
|
| 6. |
Remove the high voltage battery rear cover (A) after loosening the mounting bolts and nuts.
|
| 7. |
Disconnect the high voltage power cable [+] (A) and high voltage cable [-] (B) after loosening the mounting bolts.
|
| 8. |
Disconnect the BMS ECU extension connector (A), battery current sensor connector (B), inverter power connector [-] (C), inverter power connector [+] (D) and , PRA connector (E).
|
| 9. |
Remove the power relay connector after loosening the mounting nuts (A).
|
| Installation |
|
| 1. |
Install the power relay assembly in the reverse order of removal. |
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 th ...
Other information:
Kia Niro 2017 (DE HEV) Service Manual: High voltage shut-off procedures
High Voltage Shut-off Procedures
•
Be sure to read and follow the “General Safety Information and
Caution” before doing any work related with the high voltage system.
Failure t ...
Kia Niro 2017 (DE HEV) Service Manual: Safety Plug Specifications
Specification
Item
Specification
Rated Voltage (V)
450
Rated Current (A)
80
Fuse Rated Current (A)
125
Fuse Melting Time
Rated Current × 110% ...