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 6169–6192 of 8256
P2C4AClutch Actuator Position Sensor CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C4BClutch Actuator Position Sensor Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C4CClutch Actuator Position Sensor Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C4DClutch Actuator Position Sensor Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C4EClutch Actuator Position Sensor Circuit Intermittent/ErraticCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C4FClutch Actuator PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C50Clutch Pedal Position Sensor A/Clutch Actuator Position Sensor CorrelationCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C52Cylinder 1 Fuel Injector B Offset Learning At Min LimitCheck soonFuel System30–120 minutes for initial diagnosisP2C53Cylinder 1 Fuel Injector B Offset Learning At Max LimitCheck soonFuel System30–120 minutes for initial diagnosisP2C54Cylinder 2 Fuel Injector B Offset Learning At Min LimitCheck soonFuel System30–120 minutes for initial diagnosisP2C55Cylinder 2 Fuel Injector B Offset Learning At Max LimitCheck soonFuel System30–120 minutes for initial diagnosisP2C56Cylinder 3 Fuel Injector B Offset Learning At Min LimitCheck soonFuel System30–120 minutes for initial diagnosisP2C57Cylinder 3 Fuel Injector B Offset Learning At Max LimitCheck soonFuel System30–120 minutes for initial diagnosisP2C58Cylinder 4 Fuel Injector B Offset Learning At Min LimitCheck soonFuel System30–120 minutes for initial diagnosisP2C59Cylinder 4 Fuel Injector B Offset Learning At Max LimitCheck soonFuel System30–120 minutes for initial diagnosisP2C5ACylinder 5 Fuel Injector B Offset Learning At Min LimitCheck soonFuel System30–120 minutes for initial diagnosisP2C5BCylinder 5 Fuel Injector B Offset Learning At Max LimitCheck soonFuel System30–120 minutes for initial diagnosisP2C5CCylinder 6 Fuel Injector B Offset Learning At Min LimitCheck soonFuel System30–120 minutes for initial diagnosisP2C5DCylinder 6 Fuel Injector B Offset Learning At Max LimitCheck soonFuel System30–120 minutes for initial diagnosisP2C5ECylinder 7 Fuel Injector B Offset Learning At Min LimitCheck soonFuel System30–120 minutes for initial diagnosisP2C5FCylinder 7 Fuel Injector B Offset Learning At Max LimitCheck soonFuel System30–120 minutes for initial diagnosisP2C60Cylinder 8 Fuel Injector B Offset Learning At Min LimitCheck soonFuel System30–120 minutes for initial diagnosisP2C61Cylinder 8 Fuel Injector B Offset Learning At Max LimitCheck soonFuel System30–120 minutes for initial diagnosisP2C62O2 Sensor Pumping Current Trim Circuit/Open Bank 1 Sensor 3Check soonSensors & Electronics30–120 minutes for initial diagnosis