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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 553–576 of 621

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P26D2Engine Coolant Pump Control Module Over TemperatureUrgentEngine Problems30–120 minutes for initial diagnosisP26D2 relates to engine coolant pump control module over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P26FACoolant Pump C Overspeed/Air in SystemUrgentEngine Problems30–120 minutes for initial diagnosisP26FA relates to coolant pump c overspeed/air in system. Check the fault conditions and vehicle-specific procedure before replacing parts.P273EGear Shift Control Module A Over TemperatureUrgentTransmission Issues30–120 minutes for initial diagnosisP273E relates to gear shift control module a over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P273FTransmission Fluid Temperature Sensor B Over Temperature ConditionUrgentTransmission Issues30–120 minutes for initial diagnosisP273F relates to transmission fluid temperature sensor b over temperature condition. Check the fault conditions and vehicle-specific procedure before replacing parts.P274FTransmission Fluid Temperature Sensor C Over Temperature ConditionUrgentTransmission Issues30–120 minutes for initial diagnosisP274F relates to transmission fluid temperature sensor c over temperature condition. Check the fault conditions and vehicle-specific procedure before replacing parts.P275FTransmission Fluid Temperature Sensor D Over Temperature ConditionUrgentTransmission Issues30–120 minutes for initial diagnosisP275F relates to transmission fluid temperature sensor d over temperature condition. Check the fault conditions and vehicle-specific procedure before replacing parts.P277DElectric/Auxiliary Transmission Fluid Pump B Motor Over TemperatureUrgentTransmission Issues30–120 minutes for initial diagnosisP277D relates to electric/auxiliary transmission fluid pump b motor over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P28C9Clutch A Motor OverspeedUrgentTransmission Issues30–120 minutes for initial diagnosisP28C9 relates to clutch a motor overspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P28D8Clutch B Motor OverspeedUrgentTransmission Issues30–120 minutes for initial diagnosisP28D8 relates to clutch b motor overspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P28E6Shift Motor OverspeedUrgentTransmission Issues30–120 minutes for initial diagnosisP28E6 relates to shift motor overspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P28EDElectric/Auxiliary Transmission Fluid Pump B OverspeedUrgentTransmission Issues30–120 minutes for initial diagnosisP28ED relates to electric/auxiliary transmission fluid pump b overspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B29Hybrid/EV Battery Pack Coolant Pump A Overspeed - Dry RunUrgentElectrical & Charging System30–120 minutes for initial diagnosisP2B29 relates to hybrid/ev battery pack coolant pump a overspeed - dry run. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B2AHybrid/EV Electronics Coolant Pump A Overspeed - Dry RunUrgentEngine Problems30–120 minutes for initial diagnosisP2B2A relates to hybrid/ev electronics coolant pump a overspeed - dry run. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B65Coolant Pump B Overspeed/Air in SystemUrgentEngine Problems30–120 minutes for initial diagnosisP2B65 relates to coolant pump b overspeed/air in system. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B6CCoolant Pump D Overspeed/Air in SystemUrgentEngine Problems30–120 minutes for initial diagnosisP2B6C relates to coolant pump d overspeed/air in system. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B83Charge Air Cooler Coolant Pump A Overspeed/Air In SystemUrgentEngine Problems30–120 minutes for initial diagnosisP2B83 relates to charge air cooler coolant pump a overspeed/air in system. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B86Coolant Pump A Overspeed/Air in SystemUrgentEngine Problems30–120 minutes for initial diagnosisP2B86 relates to coolant pump a overspeed/air in system. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C67Hybrid/EV Electronics Coolant Pump A OverspeedUrgentEngine Problems30–120 minutes for initial diagnosisP2C67 relates to hybrid/ev electronics coolant pump a overspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C75Active Grille Air Shutter Module C Over TemperatureUrgentSensors & Electronics30–120 minutes for initial diagnosisP2C75 relates to active grille air shutter module c over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C78Active Grille Air Shutter Module D Over TemperatureUrgentSensors & Electronics30–120 minutes for initial diagnosisP2C78 relates to active grille air shutter module d over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C80AIR System Pump Overspeed Bank 1UrgentSensors & Electronics30–120 minutes for initial diagnosisP2C80 relates to air system pump overspeed bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CB1Charge Air Cooler Coolant Pump B Overspeed/Air In SystemUrgentEngine Problems30–120 minutes for initial diagnosisP2CB1 relates to charge air cooler coolant pump b overspeed/air in system. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CBAFan 2 OverspeedUrgentEngine Problems30–120 minutes for initial diagnosisP2CBA relates to fan 2 overspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CBCFan 3 OverspeedUrgentEngine Problems30–120 minutes for initial diagnosisP2CBC relates to fan 3 overspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.