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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 1441–1464 of 6682

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P0729Gear 6 Incorrect RatioCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0729 relates to gear 6 incorrect ratio. Check the fault conditions and vehicle-specific procedure before replacing parts.P072AStuck in NeutralCheck soonSensors & Electronics30–120 minutes for initial diagnosisP072A relates to stuck in neutral. Check the fault conditions and vehicle-specific procedure before replacing parts.P072BStuck In ReverseCheck soonSensors & Electronics30–120 minutes for initial diagnosisP072B relates to stuck in reverse. Check the fault conditions and vehicle-specific procedure before replacing parts.P072CStuck in Gear 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP072C relates to stuck in gear 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P072DStuck in Gear 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP072D relates to stuck in gear 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P072EStuck in Gear 3Check soonSensors & Electronics30–120 minutes for initial diagnosisP072E relates to stuck in gear 3. Check the fault conditions and vehicle-specific procedure before replacing parts.P072FStuck in Gear 4Check soonSensors & Electronics30–120 minutes for initial diagnosisP072F relates to stuck in gear 4. Check the fault conditions and vehicle-specific procedure before replacing parts.P0732Gear 2 Incorrect RatioCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0732 relates to gear 2 incorrect ratio. Check the fault conditions and vehicle-specific procedure before replacing parts.P0733Gear 3 Incorrect RatioCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0733 relates to gear 3 incorrect ratio. Check the fault conditions and vehicle-specific procedure before replacing parts.P0734Gear 4 Incorrect RatioCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0734 relates to gear 4 incorrect ratio. Check the fault conditions and vehicle-specific procedure before replacing parts.P0735Gear 5 Incorrect RatioCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0735 relates to gear 5 incorrect ratio. Check the fault conditions and vehicle-specific procedure before replacing parts.P0736Reverse Incorrect RatioCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0736 relates to reverse incorrect ratio. Check the fault conditions and vehicle-specific procedure before replacing parts.P0737TCM Engine Speed Output CircuitCheck soonEngine Problems30–120 minutes for initial diagnosisP0737 relates to tcm engine speed output circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0738TCM Engine Speed Output Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP0738 relates to tcm engine speed output circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P0739TCM Engine Speed Output Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP0739 relates to tcm engine speed output circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P073AStuck in Gear 5Check soonSensors & Electronics30–120 minutes for initial diagnosisP073A relates to stuck in gear 5. Check the fault conditions and vehicle-specific procedure before replacing parts.P073BStuck in Gear 6Check soonSensors & Electronics30–120 minutes for initial diagnosisP073B relates to stuck in gear 6. Check the fault conditions and vehicle-specific procedure before replacing parts.P073CStuck in Gear 7Check soonSensors & Electronics30–120 minutes for initial diagnosisP073C relates to stuck in gear 7. Check the fault conditions and vehicle-specific procedure before replacing parts.P073DUnable to Engage NeutralCheck soonSensors & Electronics30–120 minutes for initial diagnosisP073D relates to unable to engage neutral. Check the fault conditions and vehicle-specific procedure before replacing parts.P073EUnable to Engage ReverseCheck soonSensors & Electronics30–120 minutes for initial diagnosisP073E relates to unable to engage reverse. Check the fault conditions and vehicle-specific procedure before replacing parts.P073FUnable to Engage Gear 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP073F relates to unable to engage gear 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P0742Torque Converter Clutch Circuit Stuck OnCheck soonTransmission Issues30–120 minutes for initial diagnosisP0742 relates to torque converter clutch circuit stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P0743Torque Converter Clutch Circuit ElectricalCheck soonTransmission Issues30–120 minutes for initial diagnosisP0743 relates to torque converter clutch circuit electrical. Check the fault conditions and vehicle-specific procedure before replacing parts.P0744Torque Converter Clutch Circuit IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP0744 relates to torque converter clutch circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.