P3031high severityPowertrain
Electric Turbocharger/E-Compressor Motor Fault
on 2021 Dodge Durango 6.2L V8 Supercharged · 4WD
What this code means
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.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1