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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.

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

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All severities9253 Low priority305 Check soon8256 Urgent621

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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 6985–7008 of 7353

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P2E9DCharge Port Door B Unlock Control CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E9D relates to charge port door b unlock control circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E9ECharge Port Door B Unlock Control Circuit PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E9E relates to charge port door b unlock control circuit performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E9FCharge Port Door B Unlock Control Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E9F relates to charge port door b unlock control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EA0Charge Port Door B Unlock Control Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2EA0 relates to charge port door b unlock control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EA1Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 6Check soonEmissions System30–120 minutes for initial diagnosisP2EA1 relates to exhaust gas temperature sensor circuit bank 1 sensor 6. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EA2Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 6Check soonEmissions System30–120 minutes for initial diagnosisP2EA2 relates to exhaust gas temperature sensor circuit high bank 1 sensor 6. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EA3Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 6Check soonEmissions System30–120 minutes for initial diagnosisP2EA3 relates to exhaust gas temperature sensor circuit low bank 1 sensor 6. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EA5Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 6Check soonEmissions System30–120 minutes for initial diagnosisP2EA5 relates to exhaust gas temperature sensor circuit range/performance bank 1 sensor 6. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EA6Turbocharger Compressor Outlet Temperature Sensor CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2EA6 relates to turbocharger compressor outlet temperature sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EA7DC/AC Converter A Input Voltage Too LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2EA7 relates to dc/ac converter a input voltage too low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EA8DC/AC Converter A Input Voltage Too HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2EA8 relates to dc/ac converter a input voltage too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EA9DC/AC Converter A Over TemperatureUrgentSensors & Electronics30–120 minutes for initial diagnosisP2EA9 relates to dc/ac converter a over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EAAActive Radiator Air Flow Control Module A Control Circuit PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2EAA relates to active radiator air flow control module a control circuit performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EABActive Radiator Air Flow Control Module A Over TemperatureUrgentSensors & Electronics30–120 minutes for initial diagnosisP2EAB relates to active radiator air flow control module a over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EACActive Radiator Air Flow Control Module A PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2EAC relates to active radiator air flow control module a performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EADReductant Metering Unit 2 PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2EAD relates to reductant metering unit 2 performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EAEReductant Injection Valve Circuit Range/Performance Bank 1 Unit 2Check soonFuel System30–120 minutes for initial diagnosisP2EAE relates to reductant injection valve circuit range/performance bank 1 unit 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EAFReductant Injection Valve Stuck Closed Bank 1 Unit 2Check soonFuel System30–120 minutes for initial diagnosisP2EAF relates to reductant injection valve stuck closed bank 1 unit 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EB0Throttle Valve Intake Air Pressure Sensor CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2EB0 relates to throttle valve intake air pressure sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EB1Throttle Valve Intake Air Pressure Sensor Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2EB1 relates to throttle valve intake air pressure sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EB2Throttle Valve Intake Air Pressure Sensor Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2EB2 relates to throttle valve intake air pressure sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EB3Throttle Valve Intake Air Pressure Sensor Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2EB3 relates to throttle valve intake air pressure sensor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EB4Hybrid/EV Battery Inductive Charger High Voltage Interlock Circuit/OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2EB4 relates to hybrid/ev battery inductive charger high voltage interlock circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2EB5Hybrid/EV Battery Inductive Charger Input Voltage LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2EB5 relates to hybrid/ev battery inductive charger input voltage low. Check the fault conditions and vehicle-specific procedure before replacing parts.