Electric Turbocharger/E-Compressor Motor Fault
2015-2021 Kia Sedona 3.3L V6
Description
The electric turbocharger or electric compressor motor has an electrical fault. E-turbos eliminate turbo lag by using an electric motor to spool the compressor.
Symptoms
- Check Engine Light
- Turbo lag returns (no electric assist)
- Reduced low-RPM torque
- 48V system warning may accompany
- E-compressor noise absent
- Slower throttle response
Common Causes
- E-compressor motor winding failure
- Inverter circuit fault
- 48V power supply insufficient
- Motor bearing failure
- Overtemperature shutdown
Diagnostic Steps
- Read e-compressor fault codes
- Check 48V supply to e-compressor
- Test motor phase resistance
- Monitor motor temperature
- Command e-compressor operation via scan tool
Repair Notes
Replace e-compressor motor or inverter assembly. Check 48V system health. These are typically found on 48V mild hybrid systems.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P3031 on Other Vehicles
Common Questions
What does code P3031 mean on a 2015-2021 Kia Sedona?
P3031 stands for "Electric Turbocharger/E-Compressor Motor Fault". The electric turbocharger or electric compressor motor has an electrical fault. E-turbos eliminate turbo lag by using an electric motor to spool the compressor.
What are the symptoms of P3031 on a Kia Sedona?
Common symptoms of P3031 include: Check Engine Light, Turbo lag returns (no electric assist), Reduced low-RPM torque, 48V system warning may accompany, E-compressor noise absent, Slower throttle response.
What causes P3031 on a 2015-2021 Kia Sedona?
Common causes of P3031 include: E-compressor motor winding failure, Inverter circuit fault, 48V power supply insufficient, Motor bearing failure, Overtemperature shutdown.