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 1897–1920 of 6682

Most searched first
P0922Gear Shift Forward Actuator Circuit LowCheck soonTransmission IssuesP0923Gear Shift Forward Actuator Circuit HighCheck soonTransmission IssuesP0924Gear Shift Reverse Actuator Circuit/OpenCheck soonTransmission IssuesP0925Gear Shift Reverse Actuator Circuit Range/PerformanceCheck soonTransmission IssuesP0926Gear Shift Reverse Actuator Circuit LowCheck soonTransmission IssuesP0927Gear Shift Reverse Actuator Circuit HighCheck soonTransmission IssuesP0928Gear Shift Lock Solenoid/Actuator Control Circuit A/OpenCheck soonTransmission IssuesP0929Gear Shift Lock Solenoid/Actuator Control Circuit A Range/PerformanceCheck soonTransmission IssuesP092AGear Shift Lock Solenoid/Actuator Control Circuit B/OpenCheck soonTransmission IssuesP092BGear Shift Lock Solenoid/Actuator Control Circuit B Range/PerformanceCheck soonTransmission IssuesP092CGear Shift Lock Solenoid/Actuator Control Circuit B LowCheck soonTransmission IssuesP092DGear Shift Lock Solenoid/Actuator Control Circuit B HighCheck soonTransmission IssuesP0930Gear Shift Lock Solenoid/Actuator Control Circuit A LowCheck soonTransmission IssuesP0931Gear Shift Lock Solenoid/Actuator Control Circuit A HighCheck soonTransmission IssuesP0932Hydraulic Pressure Sensor CircuitCheck soonSensors & ElectronicsP0933Hydraulic Pressure Sensor Range/PerformanceCheck soonSensors & ElectronicsP0934Hydraulic Pressure Sensor Circuit LowCheck soonSensors & ElectronicsP0935Hydraulic Pressure Sensor Circuit HighCheck soonSensors & ElectronicsP0936Hydraulic Pressure Sensor Circuit IntermittentCheck soonSensors & ElectronicsP0937Hydraulic Oil Temperature Sensor CircuitCheck soonSensors & ElectronicsP0938Hydraulic Oil Temperature Sensor Range/PerformanceCheck soonSensors & ElectronicsP0939Hydraulic Oil Temperature Sensor Circuit LowCheck soonSensors & ElectronicsP093AHydraulic Accumulator Solenoid Circuit/OpenCheck soonSensors & ElectronicsP093BHydraulic Accumulator Solenoid Circuit LowCheck soonSensors & Electronics