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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 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 241–264 of 1797

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P0A77Generator Phase W Current HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A77 concerns generator phase w current high. Learn what this fault indicates and where to begin diagnosis.P0A78Drive Motor A Inverter PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A78 concerns drive motor a inverter performance. Learn what this fault indicates and where to begin diagnosis.P0A79Drive Motor B Inverter PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A79 concerns drive motor b inverter performance. Learn what this fault indicates and where to begin diagnosis.P0A7AGenerator Inverter PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A7A concerns generator inverter performance. Learn what this fault indicates and where to begin diagnosis.P0A7BBattery Energy Control Module Requested MIL IlluminationCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A7B concerns battery energy control module requested mil illumination. Learn what this fault indicates and where to begin diagnosis.P0A7CMotor Electronics Over TemperatureCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A7C concerns motor electronics over temperature. Learn what this fault indicates and where to begin diagnosis.P0A7DHybrid/EV Battery Pack State of Charge LowUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0A7D concerns hybrid/ev battery pack state of charge low. Learn what this fault indicates and where to begin diagnosis.P0A7EHybrid/EV Battery Pack A Over TemperatureUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0A7E concerns hybrid/ev battery pack a over temperature. Learn what this fault indicates and where to begin diagnosis.P0A7FHybrid/EV Battery Pack A DeteriorationUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0A7F concerns hybrid/ev battery pack a deterioration. Learn what this fault indicates and where to begin diagnosis.P0A80Replace Hybrid/EV Battery PackUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0A80 concerns replace hybrid/ev battery pack. Learn what this fault indicates and where to begin diagnosis.P0A81Hybrid/EV Battery Pack Cooling Fan 1 Control Circuit/OpenUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0A81 concerns hybrid/ev battery pack cooling fan 1 control circuit/open. Learn what this fault indicates and where to begin diagnosis.P0A82Hybrid/EV Battery Pack Cooling Fan 1 Performance/Stuck OffUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0A82 concerns hybrid/ev battery pack cooling fan 1 performance/stuck off. Learn what this fault indicates and where to begin diagnosis.P0A83Hybrid/EV Battery Pack Cooling Fan 1 Stuck OnUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0A83 concerns hybrid/ev battery pack cooling fan 1 stuck on. Learn what this fault indicates and where to begin diagnosis.P0A84Hybrid/EV Battery Pack Cooling Fan 1 Control Circuit LowUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0A84 concerns hybrid/ev battery pack cooling fan 1 control circuit low. Learn what this fault indicates and where to begin diagnosis.P0A85Hybrid/EV Battery Pack Cooling Fan 1 Control Circuit HighUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0A85 concerns hybrid/ev battery pack cooling fan 1 control circuit high. Learn what this fault indicates and where to begin diagnosis.P0A8614 Volt Power Module Current Sensor A CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A86 concerns 14 volt power module current sensor a circuit. Learn what this fault indicates and where to begin diagnosis.P0A8714 Volt Power Module Current Sensor A Circuit Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A87 concerns 14 volt power module current sensor a circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0A8814 Volt Power Module Current Sensor A Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A88 concerns 14 volt power module current sensor a circuit low. Learn what this fault indicates and where to begin diagnosis.P0A8914 Volt Power Module Current Sensor A Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A89 concerns 14 volt power module current sensor a circuit high. Learn what this fault indicates and where to begin diagnosis.P0A8A14 Volt Power Module Current Sensor A Circuit IntermittentCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A8A concerns 14 volt power module current sensor a circuit intermittent. Learn what this fault indicates and where to begin diagnosis.P0A8B14 Volt Power Module System VoltageCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A8B concerns 14 volt power module system voltage. Learn what this fault indicates and where to begin diagnosis.P0A8C14 Volt Power Module System Voltage UnstableCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A8C concerns 14 volt power module system voltage unstable. Learn what this fault indicates and where to begin diagnosis.P0A8D14 Volt Power Module System Voltage LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A8D concerns 14 volt power module system voltage low. Learn what this fault indicates and where to begin diagnosis.P0A8E14 Volt Power Module System Voltage HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A8E concerns 14 volt power module system voltage high. Learn what this fault indicates and where to begin diagnosis.