Understanding your Hyundai’s diagnostic trouble codes (DTCs), or OBD2 codes, is crucial for effective vehicle maintenance and repair. While a “check engine light” is a general indicator of a problem, specific OBD2 codes pinpoint the issue’s source. This guide provides a comprehensive list of common Hyundai OBD2 codes, their potential causes, and guidance on next steps.
Common Hyundai OBD2 Codes and Their Meanings
The following table lists common OBD2 codes encountered in Hyundai vehicles, along with their potential underlying problems. Remember, this list is not exhaustive, and some codes may have variations depending on the specific Hyundai model and year.
| 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, Incorrect engine oil viscosity, Variable valve timing actuator failure, Worn timing chain |
| P0012 | Camshaft variable timing solenoid failure, Low engine oil, Incorrect engine timing, Incorrect engine oil viscosity, 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, Incorrect engine timing, Incorrect engine oil viscosity, 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 and wiring problems, Defective Barometric Pressure Sensor, Dirty MAF sensor wire or filament, PCM software update needed |
| P0102 | Unplugged or damaged MAF sensor, Loose or corroded MAF sensor circuit terminals, Faulty MAF sensor |
| P0113 | Defective Intake Air Temperature Sensor, Dirty air filter, Defective Mass Air Flow Sensor, Faulty or corroded Intake Air Temperature Sensor wiring/connections |
| P0128 | Defective engine thermostat, Defective Engine Coolant Temperature Sensor, Defective Intake Air Temperature Sensor, Cooling system issues, Low engine coolant, Dirty engine coolant, Malfunctioning engine cooling fan(s) |
| P0135 | Defective Oxygen Sensor/Air Fuel Ratio Sensor, Defective Oxygen Sensor heater circuit, Exhaust leak, Intake air leak, Low fuel pressure, Defective Engine Coolant Temperature Sensor, Defective sensor wiring/circuit, PCM software update needed, Defective PCM |
| P0171 | Control module software update needed, Vacuum leaks, Mass air flow sensor issues, Plugged fuel filter or weak fuel pump, Plugged or dirty fuel injectors |
| P0174 | PCM software update needed, Vacuum leaks, Faulty MAF sensor, Plugged fuel filter or weak fuel pump, Plugged or dirty fuel injectors |
Decoding Hyundai-Specific OBD2 Codes
While generic OBD2 codes apply across car manufacturers, Hyundai also utilizes manufacturer-specific codes, typically starting with “P1XXX.” These codes provide more detailed diagnostics related to Hyundai’s unique systems and components. Accessing a comprehensive Hyundai Obd2 Codes Pdf document can be invaluable for understanding these specific codes.
Where to Find a Hyundai OBD2 Codes PDF
Finding a reliable Hyundai OBD2 codes PDF document might require some searching. Reputable online auto repair forums, Hyundai enthusiast websites, or even professional automotive service information systems often offer downloadable resources. Always ensure the source is credible to guarantee accurate information.
When to Seek Professional Help
While understanding OBD2 codes empowers you to address minor issues, complex problems or Hyundai-specific “P1” codes often require professional diagnosis and repair. A qualified Hyundai technician possesses the expertise, specialized tools, and access to comprehensive Hyundai OBD2 code databases to effectively troubleshoot and resolve your vehicle’s problems.
