Hyundai Kona (2018-2023) Won’t Start & Drive Motor Fault
Do you have a Hyundai Kona with a non-start condition and motor temperature warnings?
Don’t ignore it – book a diagnostic today and get expert help.
Vehicle in non-start/no drive condition
Motor electronics overtemperature warning
Drive motor current fault codes
Complete loss of propulsion
The following fault code(s) may be present
P0A7C Motor electronics over temperature
P0C01 Drive motor A current high
Affected Vehicles
Hyundai Kona Electric
- Hyundai Kona Electric 2018
- Hyundai Kona Electric 2019
- Hyundai Kona Electric 2020
- Hyundai Kona Electric 2021
- Hyundai Kona Electric 2022
- Hyundai Kona Electric 2023
Hyundai Kona Premium
- Hyundai Kona Premium 2018
- Hyundai Kona Premium 2019
- Hyundai Kona Premium 2020
- Hyundai Kona Premium 2021
- Hyundai Kona Premium 2022
- Hyundai Kona Premium 2023
Common Failure Symptoms
- Vehicle in non-start/no drive condition
- Motor overtemperature fault codes present
- High current fault codes in drive motor
- Complete loss of vehicle propulsion
- Cooling system appears operational but temperature faults persist
Do you have a Hyundai Kona with a non-start condition and motor temperature warnings?
Don’t ignore it – book a diagnostic today and get expert help.
Hyundai Kona Diagnostic Report
Initially, the vehicle was presented in a non-start/no drive condition requiring comprehensive diagnostic investigation. We carried out a diagnostic check to ascertain the reason behind the vehicle’s current condition, discovering faults stored for overtemperature.
- Cooling system checks completed with no leaks present and coolant pumps operational
- Temperature sensor circuits tested with external circuits passing all checks
- Internal temperature sensor failure identified within drive unit itself
Subsequently, we stripped and tested the drive unit, confirming the fault was internal. Further analysis revealed issues with both the drive motor and drive invertor requiring replacement.
Hyundai Kona Repairs
First, we conducted systematic diagnostic testing of the cooling system and temperature sensor circuits to isolate the fault location.
Next, we removed and stripped the drive unit for detailed internal inspection. Testing confirmed internal temperature sensor failure and drive motor degradation.
Finally, we sourced and installed replacement drive motor and drive invertor assemblies, completing all electrical connections and reinstating the system to full operational specification.
- Comprehensive cooling system and sensor circuit testing completed
- Drive unit removal and internal fault diagnosis confirmed temperature sensor and motor failure
- Replacement drive motor and invertor installed with full system reinstatement
Resolution
Following replacement of the drive motor and drive invertor, comprehensive post-repair verification confirmed successful resolution:
- Vehicle successfully repaired with full propulsion capability restored
- Fault codes P0A7C and P0C01 cleared with no return after testing
- Drive system temperature monitoring restored to correct operation
- Complete functionality check verified all EV systems operating correctly
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