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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 529–552 of 621

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P0E4BHybrid/EV Battery Pack Voltage Sense F Circuit LowUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0E4B concerns hybrid/ev battery pack voltage sense f circuit low. Learn what this fault indicates and where to begin diagnosis.P0E4CHybrid/EV Battery Pack Voltage Sense F Circuit HighUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0E4C concerns hybrid/ev battery pack voltage sense f circuit high. Learn what this fault indicates and where to begin diagnosis.P0E4DHybrid/EV Battery Pack Voltage Sense F Circuit Intermittent/ErraticUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0E4D concerns hybrid/ev battery pack voltage sense f circuit intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.P0E74Hybrid/EV Battery Voltage Internal Isolation FaultUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0E74 concerns hybrid/ev battery voltage internal isolation fault. Learn what this fault indicates and where to begin diagnosis.P0EDDHybrid/EV Battery Pack B DeteriorationUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0EDD concerns hybrid/ev battery pack b deterioration. Learn what this fault indicates and where to begin diagnosis.P0EDEHybrid/EV Battery Pack C DeteriorationUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0EDE concerns hybrid/ev battery pack c deterioration. Learn what this fault indicates and where to begin diagnosis.P0EDFHybrid/EV Battery Pack D DeteriorationUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0EDF concerns hybrid/ev battery pack d deterioration. Learn what this fault indicates and where to begin diagnosis.P0EE0Hybrid/EV Battery Pack E DeteriorationUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0EE0 concerns hybrid/ev battery pack e deterioration. Learn what this fault indicates and where to begin diagnosis.P0EE1Hybrid/EV Battery Pack F DeteriorationUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0EE1 concerns hybrid/ev battery pack f deterioration. Learn what this fault indicates and where to begin diagnosis.P0EF0Battery Charger Coupler Unlock Disabled - High Voltage PresentUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0EF0 concerns battery charger coupler unlock disabled - high voltage present. Learn what this fault indicates and where to begin diagnosis.P200CParticulate Filter Over Temperature Bank 1UrgentEmissions System30–120 minutes for initial diagnosisP200C relates to particulate filter over temperature bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P200DParticulate Filter Over Temperature Bank 2UrgentEmissions System30–120 minutes for initial diagnosisP200D relates to particulate filter over temperature bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P200ECatalyst System Over Temperature Bank 1UrgentEmissions System30–120 minutes for initial diagnosisP200E relates to catalyst system over temperature bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P200FCatalyst System Over Temperature Bank 2UrgentEmissions System30–120 minutes for initial diagnosisP200F relates to catalyst system over temperature bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P20ECSCR NOx Catalyst - Over Temperature Bank 1UrgentEmissions System30–120 minutes for initial diagnosisP20EC relates to scr nox catalyst - over temperature bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P20EDSCR NOx Pre-Catalyst - Over Temperature Bank 1UrgentEmissions System30–120 minutes for initial diagnosisP20ED relates to scr nox pre-catalyst - over temperature bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P20F0SCR NOx Catalyst - Over Temperature Bank 2UrgentEmissions System30–120 minutes for initial diagnosisP20F0 relates to scr nox catalyst - over temperature bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P20F1SCR NOx Pre-Catalyst - Over Temperature Bank 2UrgentEmissions System30–120 minutes for initial diagnosisP20F1 relates to scr nox pre-catalyst - over temperature bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P21B4NOx Adsorber - Over Temperature Bank 1UrgentSensors & Electronics30–120 minutes for initial diagnosisP21B4 relates to nox adsorber - over temperature bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P21B5NOx Adsorber - Over Temperature Bank 2UrgentSensors & Electronics30–120 minutes for initial diagnosisP21B5 relates to nox adsorber - over temperature bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P25AEPiston Cooling Oil Pressure Too LowUrgentEngine Problems30–120 minutes for initial diagnosisP25AE relates to piston cooling oil pressure too low. Check the fault conditions and vehicle-specific procedure before replacing parts.P263EGlow Plug Control Module 1 Over TemperatureUrgentSensors & Electronics30–120 minutes for initial diagnosisP263E relates to glow plug control module 1 over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P263FGlow Plug Control Module 2 Over TemperatureUrgentSensors & Electronics30–120 minutes for initial diagnosisP263F relates to glow plug control module 2 over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P26CEEngine Coolant Pump Overspeed/Air In SystemUrgentEngine Problems30–120 minutes for initial diagnosisP26CE relates to engine coolant pump overspeed/air in system. Check the fault conditions and vehicle-specific procedure before replacing parts.