Kia Niro: General Information / High voltage shut-off procedures

Kia Niro 2017 (DE HEV) Service Manual / General Information / 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 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.

High voltage components:

High Voltage Battery Pack Assembly, Power Relay Assembly (PRA), BMS ECU, Hybrid Power Control Unit (HPCU), Hybrid Drive Motor, HSG, Electric A/C Compressor, Low DC/DC Converter (LDC), Power Cable, Electric Compressor etc.

1.	Turn the ignition switch OFF and disconnect the auxiliary 12V battery negative (-) terminal.

2.	Remove the safety plug cover (A) under the rear seat..

3.	Unfasten the hook (A) to the direction of arrow.

4.	Unfasten the lever (A) to the direction of arrow.

5.	Remove the safety plug (A).

6.	Wait at least 5 minutes or until the capacitor in the high voltage system is fully discharged.

Measure the voltage between the inverter terminals to check that the capacitor in the inverter is discharged completely.

(1)	Remove air cleaner assembly and air duct. (Refer to Engine Mechanical System – “Air Cleaner”)

(2)

Disconnect the inverter power cable (A).

Disconnect the inverter power cable as the procedures below.

(3)

Measure the voltage between the inverter (+) terminal and the inverter (-) terminal.

Less than 30V : High voltage circuit properly shut

More than 30V : Fault on high voltage circuit

If measured more than 30V, check if the safety plug is removed completely.If measured more than 30V despite the safety plug is removed, there can be serious problems on the high voltage circuit. In this case, check DTC and never touch the high voltage system circuits.

General safety information and caution

Safety Precaution Precautions to take before servicing high voltage system ...

Basic Service Symbols

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Other information:

Kia Niro 2017 (DE HEV) Service Manual: Hybrid Drive Motor Assembly Specification
Specification Item Specification Type PMSM (Interior Permanent Magnet Synchronous Motor) Max. output 32 kW / 1,798 - 2,500 rpm Max. torque 170 N·m / 0 - 1798 rpm ...

Kia Niro 2017 (DE HEV) Service Manual: General information
Basic Service Symbols There are five primary symbols used to complement illustrations. These symbols indicate the part to apply such materials during service. Symbol Meaning Do not reuse the part. Replace a new one. ...