Kia Niro: High Voltage Battery Control System / Battery Temperature Sensor Repair procedures

Removal
  

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 shut off the high voltage before doing any work related with the high voltage system(Refer to "High Voltage Shut-off Procedure"). Failure to follow the safety instructions may result in serious electrical injuries.

1.

Shut off the high voltage circuit.

(Refer to Hybrid Control System - “High Voltage Shutoff Procedure”)

2.

Remove the high voltage battery pack assembly.

(Refer to High Voltage Battery System - "Battery Pack Assembly")

3.

Remove the high voltage battery pack assembly rear cover (A) after loosening the mounting nuts.

4.

Remove the battery temperature sensor (A).

Installation
  

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 shut off the high voltage before doing any work related with the high voltage system(Refer to "High Voltage Shut-off Procedure"). Failure to follow the safety instructions may result in serious electrical injuries.

1.

Install the battery temperature sensors in the reverse order of removal.

Inspection
  

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 shut off the high voltage before doing any work related with the high voltage system(Refer to "High Voltage Shut-off Procedure"). Failure to follow the safety instructions may result in serious electrical injuries.

1.

Shut off the high voltage circuit. (Refer to “High Voltage Shutoff Procedure”.)

2.

Connect the KDS/GDS to the Data Link Connector (DLC).

3.

Switch "ON" the ignition.

4.

Check the battery temperature in KDS/GDS service data.

5.

Disconnect the battery temperature signal connector (A).

6.

Measure resistances of the temperature signal terminals (Refer to the table below), then compare the value with the KDS/GDS service data.

Item
Terminals
Battery temperature sensor (B06-05) [High voltage battery module #5]
BMS ECU B01-T(1),(7)
Battery temperature sensor (B06-09) [High Voltage battery module #9]
BMS ECU B01-T(2),(8)
Inlet temperature sensor (B06)
BMS ECU B01-T(4),(10)

Specification: Refer to “Specification”

Battery Temperature Sensor Schematic diagrams
Circuit Diagram Battery Temperature Sensor (B06-1) Battery Temperature Sensor (B06-4) Air Inlet Temperature Sensor (B06) ...

High Voltage Battery Cooling System
...

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