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

All systems
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 1369–1392 of 1797

Most searched first
P0EDFHybrid/EV Battery Pack D DeteriorationUrgentElectrical & Charging SystemP0EE0Hybrid/EV Battery Pack E DeteriorationUrgentElectrical & Charging SystemP0EE1Hybrid/EV Battery Pack F DeteriorationUrgentElectrical & Charging SystemP0EE2A/C Refrigerant Distribution Valve B Stuck/OpenLow priorityElectrical & Charging SystemP0EE3A/C Refrigerant Distribution Valve B Control Circuit/OpenLow priorityElectrical & Charging SystemP0EE4A/C Refrigerant Distribution Valve B Control Circuit LowLow priorityElectrical & Charging SystemP0EE5A/C Refrigerant Distribution Valve B Control Circuit HighLow priorityElectrical & Charging SystemP0EE6A/C Refrigerant Distribution Valve B Control Circuit Driver Current/Temperature Too HighCheck soonElectrical & Charging SystemP0EE7Battery Charger Coupler Temperature Sensor B CircuitCheck soonElectrical & Charging SystemP0EE8Battery Charger Coupler Temperature Sensor B Circuit Range/PerformanceCheck soonElectrical & Charging SystemP0EE9Battery Charger Coupler Temperature Sensor B Circuit LowCheck soonElectrical & Charging SystemP0EEABattery Charger Coupler Temperature Sensor B Circuit HighCheck soonElectrical & Charging SystemP0EEBBattery Charger Coupler Temperature Sensor B Circuit Intermittent/ErraticCheck soonElectrical & Charging SystemP0EECBattery Energy Control Module B PerformanceCheck soonElectrical & Charging SystemP0EEDHybrid/EV Battery System Discharge Circuit PerformanceCheck soonElectrical & Charging SystemP0EEEBattery Charger Coupler Temperature B Too HighCheck soonElectrical & Charging SystemP0EEFDrive Motor A Control Module OvertemperatureCheck soonElectrical & Charging SystemP0EF0Battery Charger Coupler Unlock Disabled - High Voltage PresentUrgentElectrical & Charging SystemP0EF1Drive Motor C Temperature Sensor CircuitCheck soonElectrical & Charging SystemP0EF2Drive Motor C Temperature Sensor Range/PerformanceCheck soonElectrical & Charging SystemP0EF3Drive Motor C Temperature Sensor Circuit LowCheck soonElectrical & Charging SystemP0EF4Drive Motor C Temperature Sensor Circuit HighCheck soonElectrical & Charging SystemP0EF5Drive Motor C Temperature Sensor Circuit Intermittent/ErraticCheck soonElectrical & Charging SystemP0EF6Drive Motor C Temperature Sensor Over TemperatureCheck soonElectrical & Charging System