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.
Rough idle or shakingVibration while stoppedHard to startLong cranking or no-startEngine stallsCuts out at idle or on the roadHesitates or loses powerSlow response when acceleratingBattery light is onCharging system warningHarsh gear changesDelayed or rough shifting
A symptom can have several causes. Treat matching codes as clues and follow the diagnostic checks in each guide.
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 1–24 of 833
P0756Shift Solenoid B Performance or Stuck OffCheck soonTransmission Issues45–120 minutes for initial diagnosisP0760Shift Solenoid C MalfunctionCheck soonTransmission Issues45–120 minutes for initial diagnosisP0701Transmission Control System Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP0702Transmission Control System ElectricalCheck soonTransmission Issues30–120 minutes for initial diagnosisP0704Clutch Switch Input CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP0705Transmission Range Sensor A Circuit PRNDL InputCheck soonTransmission Issues45–120 minutes for initial diagnosisP0709Transmission Range Sensor A Circuit IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP070ATransmission Fluid Level Sensor CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP070BTransmission Fluid Level Sensor Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP070CTransmission Fluid Level Sensor Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP070DTransmission Fluid Level Sensor Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP070ETransmission Fluid Level Sensor Circuit intermittent/ErraticCheck soonTransmission Issues30–120 minutes for initial diagnosisP070FTransmission Fluid Level Too LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP0710Transmission Fluid Temperature Sensor A CircuitCheck soonTransmission Issues45–120 minutes for initial diagnosisP0711Transmission Fluid Temperature Sensor A Circuit Range/PerformanceCheck soonTransmission Issues30–90 minutes for initial diagnosisP0714Transmission Fluid Temperature Sensor A Circuit IntermittentCheck soonTransmission Issues30–90 minutes for initial diagnosisP071ATransmission Mode Switch A CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP071BTransmission Mode Switch A Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP071CTransmission Mode Switch A Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP071DTransmission Mode Switch B CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP071ETransmission Mode Switch B Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP071FTransmission Mode Switch B Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP0722Output Speed Sensor No SignalCheck soonTransmission Issues45–120 minutes for initial diagnosisP0742Torque Converter Clutch Circuit Stuck OnCheck soonTransmission Issues30–120 minutes for initial diagnosis