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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.

Electrical & Charging System 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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Severity

All severities9253 Low priority305 Check soon8256 Urgent621

Code family

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 1201–1224 of 1797

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P0E37DC/DC Converter Voltage Sensor B Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E37 concerns dc/dc converter voltage sensor b range/performance. Learn what this fault indicates and where to begin diagnosis.P0E38DC/DC Converter Voltage Sensor B LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E38 concerns dc/dc converter voltage sensor b low. Learn what this fault indicates and where to begin diagnosis.P0E39DC/DC Converter Voltage Sensor B HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E39 concerns dc/dc converter voltage sensor b high. Learn what this fault indicates and where to begin diagnosis.P0E3ADC/DC Converter Voltage Sensor B Intermittent/ErraticCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E3A concerns dc/dc converter voltage sensor b intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.P0E3BHybrid/EV Battery Coolant Pump OverspeedCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E3B concerns hybrid/ev battery coolant pump overspeed. Learn what this fault indicates and where to begin diagnosis.P0E3CHybrid/EV Battery Coolant Pump UnderspeedCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E3C concerns hybrid/ev battery coolant pump underspeed. Learn what this fault indicates and where to begin diagnosis.P0E3DControl Pilot Indicator Control Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E3D concerns control pilot indicator control circuit low. Learn what this fault indicates and where to begin diagnosis.P0E3EControl Pilot Indicator Control Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E3E concerns control pilot indicator control circuit high. Learn what this fault indicates and where to begin diagnosis.P0E3FCharge Status Indicator A Control Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E3F concerns charge status indicator a control circuit low. Learn what this fault indicates and where to begin diagnosis.P0E40Charge Status Indicator A Control Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E40 concerns charge status indicator a control circuit high. Learn what this fault indicates and where to begin diagnosis.P0E41Charge Status Indicator B Control Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E41 concerns charge status indicator b control circuit low. Learn what this fault indicates and where to begin diagnosis.P0E42Charge Status Indicator B Control Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E42 concerns charge status indicator b control circuit high. Learn what this fault indicates and where to begin diagnosis.P0E43Hybrid/EV Powertrain Control Module BCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E43 concerns hybrid/ev powertrain control module b. 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.P0E4EEngine Failed to CrankCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0E4E concerns engine failed to crank. Learn what this fault indicates and where to begin diagnosis.