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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.

Check soon 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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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 1129–1152 of 6682

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P05D6Driver Mode Select Switch B Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05D6 relates to driver mode select switch b circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P05D7Driver Mode Select Switch B Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05D7 relates to driver mode select switch b range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P05D8PCV Regulator Valve Control Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05D8 relates to pcv regulator valve control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P05D9PCV Regulator Valve Control Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05D9 relates to pcv regulator valve control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P05DAPCV Regulator Valve Control Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05DA relates to pcv regulator valve control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P05DBBrake Pedal Position Sensor B Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05DB relates to brake pedal position sensor b circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P05DCBrake Pedal Position Sensor B Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05DC relates to brake pedal position sensor b circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P05DDBrake Pedal Position Sensor B Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05DD relates to brake pedal position sensor b circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P05DEBrake Pedal Position Sensor B Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05DE relates to brake pedal position sensor b circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P05DFBrake Pedal Position Sensor B Circuit Intermittent/ErraticCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05DF relates to brake pedal position sensor b circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P05E0Brake Pedal Position Sensor A/B CorrelationCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05E0 relates to brake pedal position sensor a/b correlation. Check the fault conditions and vehicle-specific procedure before replacing parts.P05E3Park Brake Sensor/Switch CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05E3 relates to park brake sensor/switch circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P05E4Park Brake Sensor/Switch Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05E4 relates to park brake sensor/switch circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P05E5Park Brake Sensor/Switch Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05E5 relates to park brake sensor/switch circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P05E6Park Brake Sensor/Switch Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05E6 relates to park brake sensor/switch circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P05E7Park Brake Sensor/Switch Circuit Intermittent/ErraticCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05E7 relates to park brake sensor/switch circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P05E8Engine Oil Bypass Valve Control Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05E8 relates to engine oil bypass valve control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P05E9Engine Oil Bypass Valve Control Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05E9 relates to engine oil bypass valve control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P05EAEngine Oil Bypass Valve Control Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP05EA relates to engine oil bypass valve control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P05EBCold Start SCR NOx Catalyst Inlet Temperature Too LowCheck soonEmissions System30–120 minutes for initial diagnosisP05EB relates to cold start scr nox catalyst inlet temperature too low. Check the fault conditions and vehicle-specific procedure before replacing parts.P05ECCold Start Injection Timing PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP05EC relates to cold start injection timing performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P05EDReductant Heater Control Module Supply VoltageCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05ED relates to reductant heater control module supply voltage. Check the fault conditions and vehicle-specific procedure before replacing parts.P05EEReductant Pump Supply Voltage Circuit/OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05EE relates to reductant pump supply voltage circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P05EFReductant Pump Supply Voltage Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05EF relates to reductant pump supply voltage circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.