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 8089–8112 of 8256
C0074Requested Driving TorqueCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0075Extended Brake Pedal TravelCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0081ABS Malfunction IndicatorCheck soonChassis & Brakes45–120 minutes for initial diagnosisP0001Fuel Volume Regulator Control Circuit/OpenCheck soonFuel System45–120 minutes for initial diagnosisP0002Fuel Volume Regulator Control Circuit Range/PerformanceCheck soonFuel System45–120 minutes for initial diagnosisP0003Fuel Volume Regulator Control Circuit LowCheck soonFuel System45–120 minutes for initial diagnosisP0004Fuel Volume Regulator Control Circuit HighCheck soonFuel System45–120 minutes for initial diagnosisP0012A Camshaft Position Timing Over-Retarded Bank 1Check soonEngine Problems45–120 minutes for initial diagnosisP0013B Camshaft Position Actuator Circuit/Open Bank 1Check soonEngine Problems45–120 minutes for initial diagnosisP0014B Camshaft Position Timing Over-Advanced or System Performance Bank 1Check soonEngine Problems45–120 minutes for initial diagnosisP0015B Camshaft Position Timing Over-Retarded Bank 1Check soonEngine Problems45–120 minutes for initial diagnosisP0020A Camshaft Position Actuator Circuit/Open Bank 2Check soonEngine Problems45–120 minutes for initial diagnosisP0021A Camshaft Position Timing Over-Advanced or System Performance Bank 2Check soonEngine Problems45–120 minutes for initial diagnosisP0022A Camshaft Position Timing Over-Retarded Bank 2Check soonEngine Problems45–120 minutes for initial diagnosisP0023B Camshaft Position Actuator Circuit/Open Bank 2Check soonEngine Problems45–120 minutes for initial diagnosisP0024B Camshaft Position Timing Over-Advanced or System Performance Bank 2Check soonEngine Problems45–120 minutes for initial diagnosisP0025B Camshaft Position Timing Over-Retarded Bank 2Check soonEngine Problems45–120 minutes for initial diagnosisP0065Air Assisted Injector Control Range/PerformanceCheck soonFuel System45–120 minutes for initial diagnosisP0066Air Assisted Injector Control Circuit or Circuit LowCheck soonFuel System45–120 minutes for initial diagnosisP0067Air Assisted Injector Control Circuit HighCheck soonFuel System45–120 minutes for initial diagnosisP0068MAP/MAF–Throttle Position CorrelationCheck soonSensors & Electronics45–120 minutes for initial diagnosisP0076Intake Valve Control Solenoid Circuit Low Bank 1Check soonEngine Problems45–120 minutes for initial diagnosisP0077Intake Valve Control Solenoid Circuit High Bank 1Check soonEngine Problems45–120 minutes for initial diagnosisP0079Exhaust Valve Control Solenoid Circuit Low Bank 1Check soonEngine Problems45–120 minutes for initial diagnosis