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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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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 289–312 of 1797

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P0AA7Hybrid/EV Battery Voltage Isolation Sensor CircuitUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0AA7 concerns hybrid/ev battery voltage isolation sensor circuit. Learn what this fault indicates and where to begin diagnosis.P0AA8Hybrid/EV Battery Voltage Isolation Sensor Circuit Range/PerformanceUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0AA8 concerns hybrid/ev battery voltage isolation sensor circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0AA9Hybrid/EV Battery Voltage Isolation Sensor Circuit LowUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0AA9 concerns hybrid/ev battery voltage isolation sensor circuit low. Learn what this fault indicates and where to begin diagnosis.P0AAAHybrid/EV Battery Voltage Isolation Sensor Circuit HighUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0AAA concerns hybrid/ev battery voltage isolation sensor circuit high. Learn what this fault indicates and where to begin diagnosis.P0AABHybrid/EV Battery Voltage Isolation Sensor Circuit Intermittent/ErraticUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0AAB concerns hybrid/ev battery voltage isolation sensor circuit intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.P0AACHybrid/EV Battery Pack Air Temperature Sensor A CircuitUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0AAC concerns hybrid/ev battery pack air temperature sensor a circuit. Learn what this fault indicates and where to begin diagnosis.P0AADHybrid/EV Battery Pack Air Temperature Sensor A Circuit Range/PerformanceUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0AAD concerns hybrid/ev battery pack air temperature sensor a circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0AAEHybrid/EV Battery Pack Air Temperature Sensor A Circuit LowUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0AAE concerns hybrid/ev battery pack air temperature sensor a circuit low. Learn what this fault indicates and where to begin diagnosis.P0AAFHybrid/EV Battery Pack Air Temperature Sensor A Circuit HighUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0AAF concerns hybrid/ev battery pack air temperature sensor a circuit high. Learn what this fault indicates and where to begin diagnosis.P0AB0Hybrid/EV Battery Pack Air Temperature Sensor A Circuit Intermittent/ErraticUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0AB0 concerns hybrid/ev battery pack air temperature sensor a circuit intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.P0AB1Hybrid/EV Battery Pack Air Temperature Sensor B CircuitUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0AB1 concerns hybrid/ev battery pack air temperature sensor b circuit. Learn what this fault indicates and where to begin diagnosis.P0AB2Hybrid/EV Battery Pack Air Temperature Sensor B Circuit Range/PerformanceUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0AB2 concerns hybrid/ev battery pack air temperature sensor b circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0AB3Hybrid/EV Battery Pack Air Temperature Sensor B Circuit LowUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0AB3 concerns hybrid/ev battery pack air temperature sensor b circuit low. Learn what this fault indicates and where to begin diagnosis.P0AB4Hybrid/EV Battery Pack Air Temperature Sensor B Circuit HighUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0AB4 concerns hybrid/ev battery pack air temperature sensor b circuit high. Learn what this fault indicates and where to begin diagnosis.P0AB5Hybrid/EV Battery Pack Air Temperature Sensor B Circuit Intermittent/ErraticUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0AB5 concerns hybrid/ev battery pack air temperature sensor b circuit intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.P0AB6Engine Mount B Control Circuit/OpenCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AB6 concerns engine mount b control circuit/open. Learn what this fault indicates and where to begin diagnosis.P0AB7Engine Mount B Control Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AB7 concerns engine mount b control circuit low. Learn what this fault indicates and where to begin diagnosis.P0AB8Engine Mount B Control Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AB8 concerns engine mount b control circuit high. Learn what this fault indicates and where to begin diagnosis.P0AB9Hybrid/EV System PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0AB9 concerns hybrid/ev system performance. Learn what this fault indicates and where to begin diagnosis.P0ABAHybrid/EV Battery Pack Voltage Sense A CircuitUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0ABA concerns hybrid/ev battery pack voltage sense a circuit. Learn what this fault indicates and where to begin diagnosis.P0ABBHybrid/EV Battery Pack Voltage Sense A Circuit Range/PerformanceUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0ABB concerns hybrid/ev battery pack voltage sense a circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0ABCHybrid/EV Battery Pack Voltage Sense A Circuit LowUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0ABC concerns hybrid/ev battery pack voltage sense a circuit low. Learn what this fault indicates and where to begin diagnosis.P0ABDHybrid/EV Battery Pack Voltage Sense A Circuit HighUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0ABD concerns hybrid/ev battery pack voltage sense a circuit high. Learn what this fault indicates and where to begin diagnosis.P0ABEHybrid/EV Battery Pack Voltage Sense A Circuit Intermittent/ErraticUrgentElectrical & Charging System45–120 minutes for initial diagnosisP0ABE concerns hybrid/ev battery pack voltage sense a circuit intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.