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 1009–1032 of 1049
P34C1B Camshaft Position Actuator Position Sensor A Range/Performance Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP34C2B Camshaft Position Actuator Position Sensor A Circuit Low Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP34C3B Camshaft Position Actuator Position Sensor A Circuit High Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP34C4A Camshaft Position Actuator Control Circuit Driver Current/Temperature Too High Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP34C5A Camshaft Position Actuator Control Circuit Driver Current/Temperature Too High Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP34C6B Camshaft Position Actuator Control Circuit Driver Current/Temperature Too High Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP34C7B Camshaft Position Actuator Control Circuit Driver Current/Temperature Too High Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP34C8Camshaft Position Control Module PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP0010Camshaft Position Actuator A Circuit Bank 1Engine ProblemsP0012A 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 diagnosisP0017Crankshaft Position–Camshaft Position Correlation Bank 1 Sensor BUrgentEngine Problems1–3 hours for initial diagnosisP0018Crankshaft Position–Camshaft Position Correlation Bank 2 Sensor AUrgentEngine Problems1–3 hours for initial diagnosisP0019Crankshaft Position–Camshaft Position Correlation Bank 2 Sensor BUrgentEngine Problems1–3 hours 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 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 diagnosis