Kia Niro: High Voltage Battery Control System / BMS ECU 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 front cover. (Refer to High Voltage Battery System - "Case")

3.	Disconnect the BMS ECU Connector (A).

Remove the BMS ECU (B) after loosening the mounting nuts.

BMS ECU mounting nut :

7.8 - 11.8 N·m (0.8 - 1.2 kgf·m, 5.8 - 8.7 lb·ft)

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 BMS ECU in the reverse order of removal.

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Kia Niro 2017 (DE HEV) Service Manual: Safety Plug 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 instr ...