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 6121–6144 of 6682
P2D8DEngine Disconnect Clutch Mechanical PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP2D8EEngine Oil Pressure Sensor/Switch C CircuitCheck soonEngine Problems30–120 minutes for initial diagnosisP2D8FEngine Oil Pressure Sensor/Switch C Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP2D90Engine Oil Pressure Sensor/Switch C Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP2D91Engine Oil Pressure Sensor/Switch C Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP2D92Starter/Generator Phase X Current Sensor Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D93Starter/Generator Phase Y Current Sensor Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D94Starter/Generator Phase Z Current Sensor Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D95Starter/Generator Phase X Current Sensor Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D96Starter/Generator Phase Y Current Sensor Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D97Starter/Generator Phase Z Current Sensor Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D98Starter/Generator Phase X Current Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D99Starter/Generator Phase Y Current Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D9AStarter/Generator Phase Z Current Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D9BStarter/Generator Phase U Current Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D9CStarter/Generator Phase V Current Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D9DStarter/Generator Phase W Current Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D9EHigh Voltage System Voltage LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D9FHigh Voltage System Voltage HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DA0High Voltage System PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DA1Gear Shift Control Module B Supply Voltage LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP2DA2Gear Shift Control Module B Supply Voltage HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP2DA3Gear Shift Control Module B OvertemperatureCheck soonTransmission Issues30–120 minutes for initial diagnosisP2DA4Coolant Heater A Internal Control Module PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosis