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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.

Electrical & Charging System 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 1633–1656 of 1797

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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.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.P2D63Battery Charging System Negative Contactor C Stuck ClosedCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D63 relates to battery charging system negative contactor c stuck closed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D64Battery Charging System Negative Contactor C Stuck OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D64 relates to battery charging system negative contactor c stuck open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D65Battery Charging System Negative Contactor C Control Circuit/OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D65 relates to battery charging system negative contactor c control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D66Battery Charging System Negative Contactor C Control Circuit Range/PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D66 relates to battery charging system negative contactor c control circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D67Battery Charging System Negative Contactor C Control Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D67 relates to battery charging system negative contactor c control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D68Battery Charging System Negative Contactor C Control Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D68 relates to battery charging system negative contactor c control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D69Battery Charging System Positive Contactor D CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D69 relates to battery charging system positive contactor d circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D6ABattery Charging System Positive Contactor D Stuck ClosedCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D6A relates to battery charging system positive contactor d stuck closed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D6BBattery Charging System Positive Contactor D Stuck OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D6B relates to battery charging system positive contactor d stuck open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D6CBattery Charging System Positive Contactor D Control Circuit/OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D6C relates to battery charging system positive contactor d control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D6DBattery Charging System Positive Contactor D Control Circuit Range/PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D6D relates to battery charging system positive contactor d control circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D6EBattery Charging System Positive Contactor D Control Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D6E relates to battery charging system positive contactor d control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.