Is your 2013 Subaru Impreza’s check engine light illuminated? This usually indicates an issue detected by the On-Board Diagnostic (OBD-II) system. The system generates specific diagnostic trouble codes (DTCs) to help pinpoint the problem. Understanding these OBDII codes for your Subaru Impreza 2013 can provide valuable insight into potential issues and guide you towards the appropriate solution. This article provides a comprehensive list of common OBDII codes for a 2013 Subaru Impreza.
Common OBDII Trouble Codes for a 2013 Subaru Impreza
The following table lists common OBDII trouble codes, along with their potential causes:
| Code | Potential Problems |
|---|---|
| P0010 | Powertrain Control Module (PCM) failure, Variable valve timing actuator failure, Wiring issue |
| P0011 | Camshaft variable timing solenoid failure, Low engine oil, Incorrect engine timing, Non-compliant engine oil, Variable valve timing actuator failure, Worn timing chain |
| P0012 | Camshaft variable timing solenoid failure, Low engine oil, Incorrect engine timing, Non-compliant engine oil, Variable valve timing actuator failure, Worn timing chain |
| P0013 | PCM failure, Variable valve timing actuator failure, Wiring issue |
| P0014 | Camshaft variable timing solenoid failure, Low engine oil, Incorrect engine timing, Non-compliant engine oil, Variable valve timing actuator failure, Worn timing chain |
| P0101 | Large vacuum leaks, Split intake air boot or PCV hose, Defective intake manifold gaskets, Mass Airflow Sensor (MAF) issues, MAF circuit/wiring problems, Defective Barometric Pressure Sensor, Dirty MAF sensor wire/filament, Outdated PCM software |
| P0102 | Unplugged/damaged MAF sensor, Loose/corroded MAF circuit terminals, Faulty MAF sensor |
| P0113 | Defective Intake Air Temperature Sensor, Dirty air filter, Defective MAF Sensor, Faulty/corroded Intake Air Temperature Sensor wiring/connections |
| P0128 | Defective Engine Thermostat, Defective Engine Coolant Temperature Sensor, Defective Intake Air Temperature Sensor, Defective Cooling System, Low Engine Coolant, Dirty Engine Coolant, Defective/always running Engine Cooling fan(s) |
| P0135 | Defective Oxygen Sensor/Air Fuel Ratio Sensor, Defective Oxygen Sensor/Air Fuel Ratio Sensor Heater Circuit, Exhaust System Leak, Intake Air System leak, Low Fuel Pressure, Defective Engine Coolant Temperature Sensor, Defective sensor wiring/circuit, Outdated PCM software, Defective PCM |
| P0171 | Outdated control module software, Vacuum leaks, Faulty MAF sensor, Plugged fuel filter/weak fuel pump, Plugged/dirty fuel injectors |
| P0174 | Outdated PCM software, Vacuum leaks, Faulty MAF sensor, Plugged fuel filter/weak fuel pump, Plugged/dirty fuel injectors |
| P0200 | Defective Fuel Injector, Faulty/corroded Fuel Injector wiring/connections, Plugged Fuel Injector, Dirt in Fuel Injector |
| Code | Potential Problems |
|---|---|
| P0201 | Defective Fuel Injector, Faulty/corroded Fuel Injector wiring/connections, Plugged Fuel Injector, Dirt in Fuel Injector |
| P0202 | Fuel Injector malfunction, PCM Fuel Injector driver circuit malfunction, Defective Fuel Injector wiring harness, Defective Fuel Injector power circuit(s) |
| P0203 | Fuel injector failure, PCM failure, Wiring issue |
| P0205 | Fuel injector failure, PCM failure, Wiring issue |
| P0300 | Worn spark plugs, ignition wires, coil(s), distributor cap/rotor, Incorrect ignition timing, Vacuum leak(s), Low/weak fuel pressure, Malfunctioning EGR system, Defective MAF Sensor, Defective Crankshaft/Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems |
| P0301 | Worn spark plugs, ignition wires, coil(s), distributor cap/rotor, Incorrect ignition timing, Vacuum leak(s), Low/weak fuel pressure, Malfunctioning EGR system, Defective MAF Sensor, Defective Crankshaft/Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems |
“P1” Codes and Further Diagnosis
This list is not exhaustive. If you encounter a code not listed, or a code starting with “P1” (Subaru-specific codes), consultation with a qualified Subaru technician is recommended. They possess the expertise and specialized diagnostic equipment necessary to accurately interpret these codes and address the underlying issues in your 2013 Subaru Impreza.
Conclusion
Utilizing an OBDII scanner on your 2013 Subaru Impreza can provide valuable information for troubleshooting. However, for complex issues or Subaru-specific “P1” codes, seeking professional assistance is crucial for accurate diagnosis and repair. Regular maintenance and timely attention to warning signs can help prevent costly repairs and ensure your Subaru Impreza remains reliable.
