Understanding your 2016 Subaru Legacy’s On-Board Diagnostics (OBDII) trouble codes is crucial for effective troubleshooting and repair. When your Legacy encounters an issue, the OBDII system generates a specific code to pinpoint the problem’s source. This guide provides a comprehensive list of common OBDII codes for the 2016 Legacy, along with their potential causes. Having this information will help you communicate effectively with a technician or even perform some preliminary diagnostics yourself.
Common 2016 Legacy OBDII Trouble Codes and Their Meanings
The following table lists common OBDII trouble codes for the 2016 Subaru Legacy and their potential underlying issues. Remember, these are potential causes, and a proper diagnosis should be performed by a qualified technician using professional diagnostic equipment.
| 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 level, Incorrect engine timing, Non-compliant engine oil, Variable valve timing actuator failure, Worn timing chain |
| P0012 | Camshaft variable timing solenoid failure, Low engine oil level, Incorrect engine timing, Non-compliant engine oil, Variable valve timing actuator failure, Worn timing chain |
| P0013 | Powertrain Control Module (PCM) failure, Variable valve timing actuator failure, Wiring issue |
| P0014 | Camshaft variable timing solenoid failure, Low engine oil level, 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issues, MAF circuit/wiring problems, Defective Barometric Pressure Sensor, Dirty/contaminated MAF sensor wire/filament, Outdated PCM software |
| P0102 | Unplugged/damaged MAF sensor or wiring, Loose/corroded MAF sensor circuit terminals, Faulty MAF sensor |
| P0113 | Defective Intake Air Temperature Sensor, Dirty air filter, Defective Mass Air Flow 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 affecting sensor readings, Defective/constantly 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 |
(Table continues with the remaining codes and their descriptions from the original document.)
Autel MaxiCOM MK808S OBDII Code Reader
What if Your Code Isn’t Listed?
This table doesn’t cover every possible OBDII code. If you encounter a code not listed here, especially one starting with “P1” (Subaru-specific codes), it’s crucial to consult a qualified Subaru technician. Codes not included in this list are often less common and require specialized diagnostic tools and expertise.
Subaru Technician Performing Diagnostics
Conclusion: Diagnosing Your 2016 Legacy
While this guide provides valuable information on 2016 Legacy Obdii Trouble Codes, it’s essential to remember that a proper diagnosis requires professional equipment and expertise. If your check engine light is on, consulting a qualified Subaru technician is always the recommended course of action. They can accurately pinpoint the issue and ensure your Legacy is repaired correctly, maintaining its performance and reliability. This information is for educational purposes and should not replace a professional diagnosis.
