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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 601–624 of 866

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P27CFPressure Control Solenoid R Control Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP27CF relates to pressure control solenoid r control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P27D0Pressure Control Solenoid R Control Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP27D0 relates to pressure control solenoid r control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P27D1Pressure Control Solenoid S Performance/Stuck OffCheck soonTransmission Issues30–120 minutes for initial diagnosisP27D1 relates to pressure control solenoid s performance/stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.P27D2Pressure Control Solenoid S Stuck OnCheck soonTransmission Issues30–120 minutes for initial diagnosisP27D2 relates to pressure control solenoid s stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P27D3Pressure Control Solenoid S ElectricalCheck soonTransmission Issues30–120 minutes for initial diagnosisP27D3 relates to pressure control solenoid s electrical. Check the fault conditions and vehicle-specific procedure before replacing parts.P27D4Pressure Control Solenoid S IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP27D4 relates to pressure control solenoid s intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P27D5Pressure Control Solenoid S” Control Circuit/OpenCheck soonTransmission Issues30–120 minutes for initial diagnosisP27D5 relates to pressure control solenoid s” control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P27D6Pressure Control Solenoid S Control Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP27D6 relates to pressure control solenoid s control circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P27D7Pressure Control Solenoid S Control Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP27D7 relates to pressure control solenoid s control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P27D8Pressure Control Solenoid S Control Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP27D8 relates to pressure control solenoid s control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P27D9Pressure Control Solenoid T Performance/Stuck OffCheck soonTransmission Issues30–120 minutes for initial diagnosisP27D9 relates to pressure control solenoid t performance/stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.P27DAPressure Control Solenoid T Stuck OnCheck soonTransmission Issues30–120 minutes for initial diagnosisP27DA relates to pressure control solenoid t stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P27DBPressure Control Solenoid T ElectricalCheck soonTransmission Issues30–120 minutes for initial diagnosisP27DB relates to pressure control solenoid t electrical. Check the fault conditions and vehicle-specific procedure before replacing parts.P27DCPressure Control Solenoid T IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP27DC relates to pressure control solenoid t intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P27DDPressure Control Solenoid T Control Circuit/OpenCheck soonTransmission Issues30–120 minutes for initial diagnosisP27DD relates to pressure control solenoid t control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P27DEPressure Control Solenoid T Control Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP27DE relates to pressure control solenoid t control circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P27DFPressure Control Solenoid T Control Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP27DF relates to pressure control solenoid t control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P27E0Pressure Control Solenoid T Control Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP27E0 relates to pressure control solenoid t control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P27E1Electric/Auxiliary Transmission Fluid Pump A Pressure Too LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP27E1 relates to electric/auxiliary transmission fluid pump a pressure too low. Check the fault conditions and vehicle-specific procedure before replacing parts.P27E2Electric/Auxiliary Transmission Fluid Pump B Pressure Too LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP27E2 relates to electric/auxiliary transmission fluid pump b pressure too low. Check the fault conditions and vehicle-specific procedure before replacing parts.P27E3Electric/Auxiliary Transmission Fluid Pump Control Valve Circuit/OpenCheck soonTransmission Issues30–120 minutes for initial diagnosisP27E3 relates to electric/auxiliary transmission fluid pump control valve circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P27E4Electric/Auxiliary Transmission Fluid Pump Control Valve Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP27E4 relates to electric/auxiliary transmission fluid pump control valve circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P27E5Electric/Auxiliary Transmission Fluid Pump Control Valve Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP27E5 relates to electric/auxiliary transmission fluid pump control valve circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P27E6Electric/Auxiliary Transmission Fluid Pump Control Valve Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP27E6 relates to electric/auxiliary transmission fluid pump control valve circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.