AI4Car

Diagnostic library

Find an OBD2 code

Search the code from your scanner, then narrow the library by system, severity, or code family.

9,253 diagnostic guides

Find codes by symptomChoose what you notice to search matching code guides.

Quick browse

Choose a vehicle system

FiltersSeverity · family

Vehicle coverage

These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.

Diagnostic codes

Showing 5953–5976 of 6682

Most searched first
P2CCFHybrid/EV Battery Pack J DeteriorationCheck soonElectrical & Charging SystemP2CD0Hybrid/EV Battery Pack K DeteriorationCheck soonElectrical & Charging SystemP2CD1Hybrid/EV Battery Pack L DeteriorationCheck soonElectrical & Charging SystemP2CD2Hybrid/EV Battery Pack M DeteriorationCheck soonElectrical & Charging SystemP2CD3Hybrid/EV Battery Pack N DeteriorationCheck soonElectrical & Charging SystemP2CD5Turbocharger/Supercharger Bypass Valve C StuckCheck soonSensors & ElectronicsP2CD6Turbocharger/Supercharger Boost Sensor D CircuitCheck soonSensors & ElectronicsP2CD7Turbocharger/Supercharger Boost Sensor D Circuit Range/PerformanceCheck soonSensors & ElectronicsP2CD8Turbocharger/Supercharger Boost Sensor D Circuit LowCheck soonSensors & ElectronicsP2CD9Turbocharger/Supercharger Boost Sensor D Circuit HighCheck soonSensors & ElectronicsP2CDAAlternative Fuel Tank A Vacuum Insulation DeterioratedCheck soonFuel SystemP2CDBCold Start Cylinder 1 Deactivation/Intake Valve Control PerformanceCheck soonEngine ProblemsP2CDCCold Start Cylinder 2 Deactivation/Intake Valve Control PerformanceCheck soonEngine ProblemsP2CDDCold Start Cylinder 3 Deactivation/Intake Valve Control PerformanceCheck soonEngine ProblemsP2CDECold Start Cylinder 4 Deactivation/Intake Valve Control PerformanceCheck soonEngine ProblemsP2CDFCold Start Cylinder 5 Deactivation/Intake Valve Control PerformanceCheck soonEngine ProblemsP2CE0Cold Start Cylinder 6 Deactivation/Intake Valve Control PerformanceCheck soonEngine ProblemsP2CE1Intake Air Heater C Circuit/OpenCheck soonSensors & ElectronicsP2CE2Intake Air Heater C Circuit Range/PerformanceCheck soonSensors & ElectronicsP2CE3Intake Air Heater C Circuit LowCheck soonSensors & ElectronicsP2CE4Intake Air Heater C Circuit HighCheck soonSensors & ElectronicsP2CE5Particulate Filter Pressure Sensor C CircuitCheck soonEmissions SystemP2CE6Particulate Filter Pressure Sensor C Circuit Range/PerformanceCheck soonEmissions SystemP2CE7Particulate Filter Pressure Sensor C Circuit LowCheck soonEmissions System