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9,253 diagnostic guides

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Find codes by symptomChoose what you notice to search matching code guides.

Rough idle or shakingVibration while stopped Hard to startLong cranking or no-start Engine stallsCuts out at idle or on the road Hesitates or loses powerSlow response when accelerating Battery light is onCharging system warning Harsh gear changesDelayed or rough shifting

A symptom can have several causes. Treat matching codes as clues and follow the diagnostic checks in each guide.

P · Powertrain Clear all

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Engine1049 Emissions515 Fuel1016 Sensors & Electronics2110 Transmission866 Electrical & Charging1797 Body & Restraints193 Chassis & Brakes479 Network & Communication1228

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Severity

All severities9253 Low priority305 Check soon8256 Urgent621

Code family

All families9253 P · Powertrain7353 B · Body193 C · Chassis479 U · Network1228

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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 6649–6672 of 7353

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P2D4BHybrid/EV Battery Pack G Over TemperatureUrgentElectrical & Charging System30–120 minutes for initial diagnosisP2D4B relates to hybrid/ev battery pack g over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D4CHybrid/EV Battery Pack H Over TemperatureUrgentElectrical & Charging System30–120 minutes for initial diagnosisP2D4C relates to hybrid/ev battery pack h over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D4DHybrid/EV Battery Pack I Over TemperatureUrgentElectrical & Charging System30–120 minutes for initial diagnosisP2D4D relates to hybrid/ev battery pack i over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D4EHybrid/EV Battery Pack J Over TemperatureUrgentElectrical & Charging System30–120 minutes for initial diagnosisP2D4E relates to hybrid/ev battery pack j over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D4FHybrid/EV Battery Pack K Over TemperatureUrgentElectrical & Charging System30–120 minutes for initial diagnosisP2D4F relates to hybrid/ev battery pack k over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D50Hybrid/EV Battery Pack L Over TemperatureUrgentElectrical & Charging System30–120 minutes for initial diagnosisP2D50 relates to hybrid/ev battery pack l over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D51Air Assisted Injector Control CircuitCheck soonFuel System30–120 minutes for initial diagnosisP2D51 relates to air assisted injector control circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D52Hybrid/EV Battery Pack Coolant Temperature Sensor C CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D52 relates to hybrid/ev battery pack coolant temperature sensor c circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D53Hybrid/EV Battery Pack Coolant Temperature Sensor C Circuit Range/PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D53 relates to hybrid/ev battery pack coolant temperature sensor c circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D54Hybrid/EV Battery Pack Coolant Temperature Sensor C Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D54 relates to hybrid/ev battery pack coolant temperature sensor c circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D55Hybrid/EV Battery Pack Coolant Temperature Sensor C Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D55 relates to hybrid/ev battery pack coolant temperature sensor c circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D56Hybrid/EV Battery Pack Coolant Temperature Sensor C Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D56 relates to hybrid/ev battery pack coolant temperature sensor c circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D57Generator B Control Circuit Range/PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D57 relates to generator b control circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D58Generator B Mechanical PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D58 relates to generator b mechanical performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D59Generator B Over TemperatureUrgentElectrical & Charging System30–120 minutes for initial diagnosisP2D59 relates to generator b over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D5AReductant Level Sensor A/B CorrelationCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2D5A relates to reductant level sensor a/b correlation. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D5BBattery Charging System Positive Contactor C CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D5B relates to battery charging system positive contactor c circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D5CBattery Charging System Positive Contactor C Stuck ClosedCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D5C relates to battery charging system positive contactor c stuck closed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D5DBattery Charging System Positive Contactor C Stuck OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D5D relates to battery charging system positive contactor c stuck open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D5EBattery Charging System Positive Contactor C Control Circuit/OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D5E relates to battery charging system positive contactor c control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D5FBattery Charging System Positive Contactor C Control Circuit Range/PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D5F relates to battery charging system positive contactor c control circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D60Battery Charging System Positive Contactor C Control Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D60 relates to battery charging system positive contactor c control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D61Battery Charging System Positive Contactor C Control Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D61 relates to battery charging system positive contactor c control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D62Battery Charging System Negative Contactor C CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D62 relates to battery charging system negative contactor c circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.