KIA Niro: Safety Plug Description and operation

Kia Niro - First generation - (2017-2022) - Service and Repair Manual / Service Highlight / Power Relay Assembly (PRA) / 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, Hybrid Drive Motor, Inverter, HSG, LDC, Power Cable, etc.)
It includes a fuse in order to prevent the high voltage system from overcurrent.

Circuit Diagram

Circuit Diagram

Harness Connector (Interlock)

Harness Connector (Interlock)

Safety Plug Repair procedures

Safety Plug 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.
  • 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.
  1. Turn the ignition switch OFF.
  2. Remove the auxiliary 12V battery cover (A).

  1. Disconnect the auxiliary 12V battery negative (-) terminal.

  1. Remove the luggage board (A).

  1. Remove the safety plug cover (A) after loosening the mounting bolts.

Installation

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.
  1. Install the Safety Plug in the reverse order of removal.

Specification

The Power Relay Assembly

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