Kia Soul EV Owner's Manual Quiz
Electric Vehicle Battery System

Power Relay Assembly (PRA) Repair Procedures

In this manual: Electric Vehicle Battery System
General Information — 17Maintenance — 17Drive Shaft and Axle — 15Suspension System — 36Steering — 24Restraints — 48Brake System — 37Body (Interior and Exterior) — 207Body Electrical System — 203Heating, Ventilation, and Air Conditioning — 80Electric Vehicle Battery System — 115
10steps
~60min
3/5difficulty
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 10

Removal
  • Be sure to read and observe the "General Safety Information and Caution" before performing any work on the high voltage system. Failure to follow the safety instructions may result in serious electrical injury.
  • Before performing any work, be sure to disconnect high voltage related to the high voltage system (refer to "High Voltage Disconnection Procedure"). Failure to follow safety instructions may result in serious electric shock.
  1. Remove the high voltage battery pack. (Refer to High Voltage Battery System - Battery Pack Assembly - Repair Procedures - Removal)
  2. Loosen the safety lever cable bracket mounting bolt (A). Safety lever cable bracket mounting bolt: 7.8 ~ 11.8 N·m
  3. Loosen the mounting bolt and remove the high voltage battery upper case (A). High voltage battery upper case mounting bolt: 7.8 ~ 11.8 N·m
  4. Remove the high voltage power cable cover (A) and the inverter busbar cover (B).
  5. Loosen the mounting nut (A) and disconnect the positive (+) high voltage power cable (B). Positive (+) high voltage power cable mounting nut: 7.8 ~ 11.8 N·m
  6. Loosen the nut (A), then disconnect the negative (-) high-voltage power cable (B). Negative (-) high-voltage power cable nut: 7.8 - 11.8 N·m
  7. Remove the inverter busbar (A). 7.8 ~ 11.8 N·m Inverter busbar mounting bolt/nut: 0.8 ~ 1.2 kgf·m
  8. Disconnect the positive (+) power supply for the high voltage battery heating control and the ground connector (A). [With High Voltage Battery Heating System]
  9. Disconnect the power relay assembly connector (A).
  10. Loosen the mounting nut (A) and remove the power relay assembly (B). Power relay unit mounting nut: 7.8 ~ 11.8 N·m

Installation
  • Be sure to read and observe the "General Safety Information and Caution" before performing any work on the high voltage system. Failure to follow the safety instructions may result in serious electrical injury.
  • Before performing any work, be sure to disconnect high voltage related to the high voltage system (refer to "High Voltage Disconnection Procedure"). Failure to follow safety instructions may result in serious electric shock.
  1. Install the power relay assembly in the reverse order of removal.

Test yourself

A quick Kia Soul EV Owner's Manual quiz: every answer comes with an explanation and a link to the manual page.