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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 4897–4920 of 6682

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P2781Downshift Switch Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP2781 relates to downshift switch circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2782Downshift Switch Circuit Intermittent/ErraticCheck soonTransmission Issues30–120 minutes for initial diagnosisP2782 relates to downshift switch circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2783Torque Converter Temperature Too HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP2783 relates to torque converter temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2784Input/Turbine Speed Sensor A/B CorrelationCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2784 relates to input/turbine speed sensor a/b correlation. Check the fault conditions and vehicle-specific procedure before replacing parts.P2785Clutch Actuator Temperature Too HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP2785 relates to clutch actuator temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2786Gear Shift Actuator Temperature Too HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP2786 relates to gear shift actuator temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2787Clutch A Temperature Too HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP2787 relates to clutch a temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2788Auto Shift Manual Adaptive Learning at LimitCheck soonTransmission Issues30–120 minutes for initial diagnosisP2788 relates to auto shift manual adaptive learning at limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2789Clutch A Adaptive Learning at LimitCheck soonTransmission Issues30–120 minutes for initial diagnosisP2789 relates to clutch a adaptive learning at limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P278AKick Down Switch CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP278A relates to kick down switch circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P278BKick Down Switch Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP278B relates to kick down switch circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P278CKick Down Switch Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP278C relates to kick down switch circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P278DKick Down Switch Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP278D relates to kick down switch circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P278EKick Down Switch Circuit Intermittent/ErraticCheck soonSensors & Electronics30–120 minutes for initial diagnosisP278E relates to kick down switch circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P278FClutch B Adaptive Learning at LimitCheck soonTransmission Issues30–120 minutes for initial diagnosisP278F relates to clutch b adaptive learning at limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2790Gate Select Direction CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2790 relates to gate select direction circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2791Gate Select Direction Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2791 relates to gate select direction circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2792Gate Select Direction Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2792 relates to gate select direction circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2793Gear Shift Direction CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP2793 relates to gear shift direction circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2794Gear Shift Direction Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP2794 relates to gear shift direction circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2795Gear Shift Direction Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP2795 relates to gear shift direction circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2796Electric/Auxiliary Transmission Fluid Pump A Control Circuit/OpenCheck soonTransmission Issues30–120 minutes for initial diagnosisP2796 relates to electric/auxiliary transmission fluid pump a control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2797Electric/Auxiliary Transmission Fluid Pump A Performance/Stuck OffCheck soonTransmission Issues30–120 minutes for initial diagnosisP2797 relates to electric/auxiliary transmission fluid pump a performance/stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.P2798Electric/Auxiliary Transmission Fluid Pump A Control Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP2798 relates to electric/auxiliary transmission fluid pump a control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.