Section 51 (Traction Motor System - General Information): Troubleshooting

WARNING: This page is about a different car, the 2019 Kia Soul EV. However, it is still accessible from the selected car via links, so may be relevant.

TRACTION MOTOR SYSTEM TROUBLESHOOTING

Failure	Cause	Inspection Item
Overheat due to insufficient coolant	Excessive air in coolant channel Insufficient coolant Coolant leakage	Bleed air with KDS and refill coolant Hose clamping, radiator leakage, etc.
Overheat due to component malfunction	Cooling Fan or Electric Water Pump (EWP) failure	Electric Water Pump (EWP), Cooling Fan
Overheating due to clogged coolant channel	Clogged coolant channel	Inside coolant channel
Power Electric related component failure	High voltage cable disconnection (High Voltage Junction Box - On Board Charger (OBC) - Electric Power Control Unit (EPCU) - Drive Motor) Disconnected signal connector Faulty CAN wiring insulation	High voltage cable connection Signal connector connection CAN Line wiring
Low insulation resistance	Faulty power electric related component insulation * If one component is not insulated, it may cause damage in another component.	High Voltage Junction Box, On Board Charger (OBC), Electric Power Control Unit (EPCU), Drive Motor, High Voltage Cable