KIA Niro: 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.
- Be sure to read and follow the "High Voltage Shut-off Procedures" before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries.
Sub High Voltage Battery
- Switch "OFF" the ignition and disconnect the negative (-) terminal of the auxiliary 12V battery.
- Shut off the high voltage circuit.
(Refer to Hybrid Control System - "High Voltage Shutoff Procedure")
- Remove the sub high voltage battery system assembly.
(Refer to High Voltage Battery System - "Removal")
- Remove the high voltage battery watertight case.
(Refer to High Voltage Battery System - "Case")
- Disconnect the cell monitoring unit connector (A).
- Remove the cell monitoring unit (B) after loosening the mounting screws.
Cell Monitoring Unit #1
Cell Monitoring Unit #2
Cell Monitoring Unit #3
Cell Monitoring Unit #4
Cell Monitoring Unit #5
Cell Monitoring Unit #6
Main High Voltage Battery
- Switch "OFF" the ignition and disconnect the negative (-) terminal of the auxiliary 12V battery.
- Shut off the high voltage circuit.
(Refer to Hybrid Control System - "High Voltage Shutoff Procedure")
- Remove the main high voltage battery system assembly.
(Refer to High Voltage Battery System - "Removal")
- Disconnect the cell monitoring unit connector (A).
- Remove the cell monitoring unit (B) after loosening the mounting screws.
Cell Monitoring Unit #7
Cell Monitoring Unit #8
Cell Monitoring Unit #9
Cell Monitoring Unit #10
Cell Monitoring Unit #11
Cell Monitoring Unit #12
Installation
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.
- Be sure to read and follow the "High Voltage Shut-off Procedures" before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries.
- Install in the reverse order of removal.
Description
The Runaway Arresting Device (RAD) is attached to the upper part of each module.
If the high voltage battery is swollen due to overcharging of the battery cell, the main relay (+), main relay (-), and pre-charge relay coil ground lines are cut off via RAD to prevent the operation of the main relay and pre-charge relay in case of overcharging.
If the high voltage battery is in normal condition, the switch is intact. The switch is cut off if the cell is overcharged.
When the switch is cur off, it is impossible to drive.
Sub High Voltage Battery
Main High Voltage Battery
Circuit Diagram
READ NEXT:
Main High Voltage Battery Temperature Sensor
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 in
Cooling Fan Description and operation | Cooling Fan Repair procedures
Component
Location
Cooling Fan #1
Cooling Fan #2
Main High Voltage Battery Cooling Duct (Inlet)
Main High Voltage Battery Cooling Duct (Outlet)
Sub High Voltage Battery Cooling Duct (Inlet)
Sub High Voltage Battery
SEE MORE:
Emission Control System
Components Location
PCV Valve
Canister
Purge Control Solenoid Valve (PCSV)
Fuel Tank Pressure Sensor (FTPS)
Fuel Level Sensor (FLS)
Fuel tank air Filter
Catalytic converter (WCC)
Gasoline Particulate Filter (GPF)
PCV Valve
Timing Chain Repair procedures
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.
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