Diagnostic library
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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.
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These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.
Diagnostic codes
Showing 1801–1824 of 1939
P2DAADC/AC Converter Control Module A Switch B CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2DABDC/AC Converter Control Module A Switch B Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2DACDrive Motor A Temperature Sensor B CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2DADDrive Motor A Temperature Sensor B Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2DAEDrive Motor A Temperature Sensor B Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2DAFDrive Motor A Temperature Sensor B Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2DB0Drive Motor A Temperature Sensor B Circuit IntermittentCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2DB1Drive Motor A Temperature Sensor C CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2DB2Drive Motor A Temperature Sensor C Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2DB3Drive Motor A Temperature Sensor C Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2DB4Drive Motor A Temperature Sensor C Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2DB5Drive Motor A Temperature Sensor C Circuit IntermittentCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2DF0Intake Valve Lift Range/Performance Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2DF1Intake Valve Lift Range/Performance Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP2DF2Intake Valve Lift System Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E00Gear Lever Position Sensor A CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E01Gear Lever Position Sensor A Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E02Gear Lever Position Sensor A Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E03Gear Lever Position Sensor A Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E04Gear Lever Position Sensor B CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E05Gear Lever Position Sensor B Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E06Gear Lever Position Sensor B Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E07Gear Lever Position Sensor B Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E08Gear Lever Position Sensor C CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosis