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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 169–192 of 200

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P0E30High Voltage Fuse CUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0E30 concerns high voltage fuse c. Learn what this fault indicates and where to begin diagnosis.P0E44Hybrid/EV Battery Pack Voltage Sense E CircuitUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0E44 concerns hybrid/ev battery pack voltage sense e circuit. Learn what this fault indicates and where to begin diagnosis.P0E45Hybrid/EV Battery Pack Voltage Sense E Circuit Range/PerformanceUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0E45 concerns hybrid/ev battery pack voltage sense e circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0E46Hybrid/EV Battery Pack Voltage Sense E Circuit LowUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0E46 concerns hybrid/ev battery pack voltage sense e circuit low. Learn what this fault indicates and where to begin diagnosis.P0E47Hybrid/EV Battery Pack Voltage Sense E Circuit HighUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0E47 concerns hybrid/ev battery pack voltage sense e circuit high. Learn what this fault indicates and where to begin diagnosis.P0E48Hybrid/EV Battery Pack Voltage Sense E Circuit Intermittent/ErraticUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0E48 concerns hybrid/ev battery pack voltage sense e circuit intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.P0E49Hybrid/EV Battery Pack Voltage Sense F CircuitUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0E49 concerns hybrid/ev battery pack voltage sense f circuit. Learn what this fault indicates and where to begin diagnosis.P0E4AHybrid/EV Battery Pack Voltage Sense F Circuit Range/PerformanceUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0E4A concerns hybrid/ev battery pack voltage sense f circuit range/performance. Learn what this fault indicates and where to begin diagnosis.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.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.P2CF6Hybrid/EV Battery Pack Coolant Pump B Overspeed /Air in SystemUrgentElectrical & Charging System30–120 minutes for initial diagnosisP2CF6 relates to hybrid/ev battery pack coolant pump b overspeed /air in system. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D46Hybrid/EV Battery Pack B Over TemperatureUrgentElectrical & Charging System30–120 minutes for initial diagnosisP2D46 relates to hybrid/ev battery pack b over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D47Hybrid/EV Battery Pack C Over TemperatureUrgentElectrical & Charging System30–120 minutes for initial diagnosisP2D47 relates to hybrid/ev battery pack c over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D48Hybrid/EV Battery Pack D Over TemperatureUrgentElectrical & Charging System30–120 minutes for initial diagnosisP2D48 relates to hybrid/ev battery pack d over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D49Hybrid/EV Battery Pack E Over TemperatureUrgentElectrical & Charging System30–120 minutes for initial diagnosisP2D49 relates to hybrid/ev battery pack e over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.