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 2113–2136 of 8256

Most searched first
P0890TCM Power Relay Sense Circuit LowCheck soonElectrical & Charging SystemP0891TCM Power Relay Sense Circuit HighCheck soonElectrical & Charging SystemP0892TCM Power Relay Sense Circuit IntermittentCheck soonElectrical & Charging SystemP0893Multiple Gears EngagedCheck soonSensors & ElectronicsP0894Transmission Component SlippingCheck soonTransmission IssuesP0895Shift Time Too ShortCheck soonTransmission IssuesP0896Shift Time Too LongCheck soonTransmission IssuesP0897Transmission Fluid DeterioratedCheck soonTransmission IssuesP0898Transmission Control System MIL Request Circuit LowCheck soonTransmission IssuesP0899Transmission Control System MIL Request Circuit HighCheck soonTransmission IssuesP089AGear Lever X Position Sensor 2 CircuitCheck soonSensors & ElectronicsP089BGear Lever X Position Sensor 2 Circuit Range/PerformanceCheck soonSensors & ElectronicsP089CGear Lever X Position Sensor 2 Circuit LowCheck soonSensors & ElectronicsP089DGear Lever X Position Sensor 2 Circuit HighCheck soonSensors & ElectronicsP089EGear Lever X Position Sensor 2 Circuit Intermittent/ErraticCheck soonSensors & ElectronicsP089FGear Lever Y Position Sensor 2 CircuitCheck soonSensors & ElectronicsP08A0Gear Lever Y Position Sensor 2 Circuit Range/PerformanceCheck soonSensors & ElectronicsP08A1Gear Lever Y Position Sensor 2 Circuit LowCheck soonSensors & ElectronicsP08A2Gear Lever Y Position Sensor 2 Circuit HighCheck soonSensors & ElectronicsP08A3Gear Lever Y Position Sensor 2 Circuit Intermittent/ErraticCheck soonSensors & ElectronicsP08A4Gear Lever X Position Sensor 1/2 CorrelationCheck soonSensors & ElectronicsP08A5Gear Lever Y Position Sensor 1/2 CorrelationCheck soonSensors & ElectronicsP08A6Gear Lever Position Sensor System - Multiple Sensor CorrelationCheck soonSensors & ElectronicsP08A7Clutch Pedal Position Sensor A Circuit/OpenCheck soonTransmission Issues