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 1657–1680 of 6682

Most searched first
P0819Up and Down Shift Switch to Transmission Range CorrelationCheck soonTransmission IssuesP081AStarter Disable Circuit LowCheck soonSensors & ElectronicsP081BStarter Disable Circuit HighCheck soonSensors & ElectronicsP081CPark Input CircuitCheck soonSensors & ElectronicsP081DNeutral Input CircuitCheck soonSensors & ElectronicsP081EExcessive Clutch B SlippageCheck soonTransmission IssuesP081FBrake Transmission Shift Interlock (BTSI) Signal CorrelationCheck soonTransmission IssuesP0820Gear Lever X-Y Position Sensor CircuitCheck soonSensors & ElectronicsP0821Gear Lever X Position Sensor 1 CircuitCheck soonSensors & ElectronicsP0822Gear Lever Y Position Sensor 1 CircuitCheck soonSensors & ElectronicsP0823Gear Lever X Position Sensor 1 Circuit Intermittent/ErraticCheck soonSensors & ElectronicsP0824Gear Lever Y Position Sensor 1 Circuit Intermittent/ErraticCheck soonSensors & ElectronicsP0825Gear Lever Push-Pull Switch (Shift Anticipate)Check soonTransmission IssuesP0826Up and Down Shift Switch CircuitCheck soonTransmission IssuesP0827Up and Down Shift Switch Circuit LowCheck soonTransmission IssuesP0828Up and Down Shift Switch Circuit HighCheck soonTransmission IssuesP08295-6 ShiftCheck soonTransmission IssuesP082AGear Lever X Position Sensor 1 Circuit Range/PerformanceCheck soonSensors & ElectronicsP082BGear Lever X Position Sensor 1 Circuit LowCheck soonSensors & ElectronicsP082CGear Lever X Position Sensor 1 Circuit HighCheck soonSensors & ElectronicsP082DGear Lever Y Position Sensor 1 Circuit Range/PerformanceCheck soonSensors & ElectronicsP082EGear Lever Y Position Sensor 1 Circuit LowCheck soonSensors & ElectronicsP082FGear Lever Y Position Sensor 1 Circuit HighCheck soonSensors & ElectronicsP0830Clutch Pedal Switch A CircuitCheck soonTransmission Issues