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 5881–5904 of 6682
P2C84Cold Start Shift Time Too LongCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C85Hybrid/EV Battery Voltage External Isolation FaultCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2C86Hybrid/EV Battery Voltage Internal Isolation WarningCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2C87Hybrid/EV Battery Voltage External Isolation WarningCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2C88Hybrid/EV Battery Voltage System Isolation WarningCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2C89Hybrid/EV Battery System Precharge Current Too HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2C8AHybrid/EV Battery Interface Control Module A PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2C8BHybrid/EV Battery Interface Control Module B PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2C8CDC/DC Converter Temperature Sensor D CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C8DDC/DC Converter Temperature Sensor D Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C8EDC/DC Converter Temperature Sensor D Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C8FDC/DC Converter Temperature Sensor D Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C90Crankcase Ventilation System - Hose A DisconnectedCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C91Crankcase Ventilation System - Hose B DisconnectedCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C92Hybrid/EV Battery Contactor Control Supply Circuit/OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2C93Hybrid/EV Battery Contactor Control Supply Circuit Range/PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2C94Hybrid/EV Battery Contactor Control Supply Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2C95Hybrid/EV Battery Contactor Control Supply Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2C96Hybrid/EV Battery Disable Circuit/OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2C97Hybrid/EV Battery Disable Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2C98Hybrid/EV Battery Disable Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2C99Throttle Actuator A Control Exceeded Learning LimitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C9AThrottle Actuator B Control Exceeded Learning LimitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C9BCold Start Turbocharger/Supercharger Wastegate Actuator A Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosis