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 1297–1320 of 1797
P0E97DC/DC Converter Voltage Sensor C Circuit Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E98DC/DC Converter Voltage Sensor C Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E99DC/DC Converter Voltage Sensor C Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E9ADC/DC Converter Voltage Sensor C Circuit Intermittent/ErraticCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E9BDC/DC Converter Current Sensor B CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E9CDC/DC Converter Current Sensor B Circuit Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E9DDC/DC Converter Current Sensor B Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E9EDC/DC Converter Current Sensor B Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E9FDC/DC Converter Current Sensor B Circuit Intermittent/ErraticCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0EA0DC/DC Converter Current Sensor C CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0EA1DC/DC Converter Current Sensor C Circuit Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0EA2DC/DC Converter Current Sensor C Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0EA3DC/DC Converter Current Sensor C Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0EA4DC/DC Converter Current Sensor C Circuit Intermittent/ErraticCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0EA5DC/DC Converter B PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0EA6DC/DC Converter B Over TemperatureCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0EA7Auxiliary Cooling System PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0EA8A/C Compressor Motor Voltage Sensor B CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0EA9A/C Compressor Motor Voltage Sensor B Circuit PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0EAAA/C Compressor Motor Voltage Sensor B Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0EABA/C Compressor Motor Voltage Sensor B Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0EACA/C Compressor Motor Voltage Sensor B Circuit Intermittent/ErraticCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0EADA/C Compressor Motor Current Sensor CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0EAEA/C Compressor Motor Current Sensor Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosis