KIA Niro: Main High/ Sub High Voltage Battery
Kia Niro - First generation - (DE) (2017-2022) - Service and Repair Manual / Service Highlight / Power Relay Assembly (PRA) / Main High/ Sub High Voltage Battery
Main High Voltage Battery
Component Location
- Power Relay Assembly (PRA)
- Cell Monitoring Unit (CMU)
- Battery Temperature Sensor
- Runaway Arresting Device (RAD)
Warning
Main Relays (Positive, Negative), Pre-Charge Relay, Pre-Charge Resistor, and Battery Current Sensor are integrated into the PRA.
Sub High Voltage Battery
- BMS ECU
- Safety Plug
- Cell Monitoring Unit (CMU)
- Main Fuse
- Runaway Arresting Device (RAD)
- Battery Temperature Sensor
Warning
Main Relays (Positive, Negative), Pre-Charge Relay, Pre-Charge Resistor, and Battery Current Sensor are integrated into the PRA.
High Voltage Battery Control System / Schematic Diagrams
Schematic Diagram
Troubleshooting Flow
BMS ECU Terminal and Input/Output Signal
Terminal Funxtion
Connector (B11-1A)
Connector (B11-1B)
Connector (B11-2A)
Connector (B11-2B)
READ NEXT:
Sub High Voltage Battery - Removal
Warning
Be sure to read and follow the "General Safety Information and
Caution" before doing any work related
with the high voltage system. Failure to follow the safety instructions may
result in serious electrical
injuries.
Safety Plug Description and operation
Description
Safety Plug is installed on the rear side of the high voltage battery and it
can mechanically shut the
high voltage circuit off when servicing the high voltage system. (i.e. High
Voltage Battery, Power
Relay Assembly, HPCU, BMS ECU
The Power Relay Assembly
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 c
SEE MORE:
Floor Console Assembly Repair procedures
Floor Console / Components And Components Location
Console complete
Console front cover (RH)
Console front cover (LH)
Console upper cover
Shift lever boot assembly
Floor Console Assembly Components and components location
F
Crankshaft Bore Identification Mark
Letters are been stamped on the block as a mark for the size of each of the 5
main journal bores.
Use them, and the numbers or bar stamped on the crank (marks for main journal
size), to choose the correct
bearings.
Cylinder Block Specifi
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