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 289–312 of 1570

Most searched first
P0AE2Hybrid/EV Battery Precharge Contactor Circuit Stuck ClosedCheck soonElectrical & Charging SystemP0AE3Hybrid/EV Battery Precharge Contactor Circuit Stuck OpenCheck soonElectrical & Charging SystemP0AE4Hybrid/EV Battery Precharge Contactor A Control Circuit/OpenCheck soonElectrical & Charging SystemP0AE5Hybrid/EV Battery Precharge Contactor A Control Circuit Range/PerformanceCheck soonElectrical & Charging SystemP0AE6Hybrid/EV Battery Precharge Contactor A Control Circuit LowCheck soonElectrical & Charging SystemP0AE7Hybrid/EV Battery Precharge Contactor A Control Circuit HighCheck soonElectrical & Charging SystemP0AE8Hybrid/EV Battery Temperature Sensor D CircuitCheck soonElectrical & Charging SystemP0AE9Hybrid/EV Battery Temperature Sensor D Circuit Range/PerformanceCheck soonElectrical & Charging SystemP0AEAHybrid/EV Battery Temperature Sensor D Circuit LowCheck soonElectrical & Charging SystemP0AEBHybrid/EV Battery Temperature Sensor D Circuit HighCheck soonElectrical & Charging SystemP0AECHybrid/EV Battery Temperature Sensor D Circuit Intermittent/ErraticCheck soonElectrical & Charging SystemP0AEDDrive Motor Inverter Temperature Sensor A CircuitCheck soonElectrical & Charging SystemP0AEEDrive Motor Inverter Temperature Sensor A Circuit Range/PerformanceCheck soonElectrical & Charging SystemP0AEFDrive Motor Inverter Temperature Sensor A Circuit LowCheck soonElectrical & Charging SystemP0AF0Drive Motor Inverter Temperature Sensor A Circuit HighCheck soonElectrical & Charging SystemP0AF1Drive Motor Inverter Temperature Sensor A Circuit Intermittent/ErraticCheck soonElectrical & Charging SystemP0AF2Drive Motor Inverter Temperature Sensor B CircuitCheck soonElectrical & Charging SystemP0AF3Drive Motor Inverter Temperature Sensor B Circuit Range/PerformanceCheck soonElectrical & Charging SystemP0AF4Drive Motor Inverter Temperature Sensor B Circuit LowCheck soonElectrical & Charging SystemP0AF5Drive Motor Inverter Temperature Sensor B Circuit HighCheck soonElectrical & Charging SystemP0AF6Drive Motor Inverter Temperature Sensor B Circuit Intermittent/ErraticCheck soonElectrical & Charging SystemP0AF714 Volt Power Module Internal Temperature Too HighCheck soonElectrical & Charging SystemP0AF8Hybrid/EV Battery System VoltageCheck soonElectrical & Charging SystemP0AF9Hybrid/EV Battery System Voltage UnstableCheck soonElectrical & Charging System