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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.

Check soon 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 2041–2064 of 6682

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P0A21Motor Torque Sensor Circuit IntermittentCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A21 concerns motor torque sensor circuit intermittent. Learn what this fault indicates and where to begin diagnosis.P0A22Generator Torque Sensor CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A22 concerns generator torque sensor circuit. Learn what this fault indicates and where to begin diagnosis.P0A23Generator Torque Sensor Circuit Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A23 concerns generator torque sensor circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0A24Generator Torque Sensor Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A24 concerns generator torque sensor circuit low. Learn what this fault indicates and where to begin diagnosis.P0A25Generator Torque Sensor Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A25 concerns generator torque sensor circuit high. Learn what this fault indicates and where to begin diagnosis.P0A26Generator Torque Sensor Circuit IntermittentCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A26 concerns generator torque sensor circuit intermittent. Learn what this fault indicates and where to begin diagnosis.P0A27Hybrid/EV Battery Power Off CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A27 concerns hybrid/ev battery power off circuit. Learn what this fault indicates and where to begin diagnosis.P0A28Hybrid/EV Battery Power Off Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A28 concerns hybrid/ev battery power off circuit low. Learn what this fault indicates and where to begin diagnosis.P0A29Hybrid/EV Battery Power Off Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A29 concerns hybrid/ev battery power off circuit high. Learn what this fault indicates and where to begin diagnosis.P0A2ADrive Motor A Temperature Sensor A CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A2A concerns drive motor a temperature sensor a circuit. Learn what this fault indicates and where to begin diagnosis.P0A2BDrive Motor A Temperature Sensor A Circuit Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A2B concerns drive motor a temperature sensor a circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0A2CDrive Motor A Temperature Sensor A Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A2C concerns drive motor a temperature sensor a circuit low. Learn what this fault indicates and where to begin diagnosis.P0A2DDrive Motor A Temperature Sensor A Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A2D concerns drive motor a temperature sensor a circuit high. Learn what this fault indicates and where to begin diagnosis.P0A2EDrive Motor A Temperature Sensor A Circuit IntermittentCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A2E concerns drive motor a temperature sensor a circuit intermittent. Learn what this fault indicates and where to begin diagnosis.P0A2FDrive Motor A Over TemperatureCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A2F concerns drive motor a over temperature. Learn what this fault indicates and where to begin diagnosis.P0A30Drive Motor B Temperature Sensor CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A30 concerns drive motor b temperature sensor circuit. Learn what this fault indicates and where to begin diagnosis.P0A31Drive Motor B Temperature Sensor Circuit Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A31 concerns drive motor b temperature sensor circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0A32Drive Motor B Temperature Sensor Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A32 concerns drive motor b temperature sensor circuit low. Learn what this fault indicates and where to begin diagnosis.P0A33Drive Motor B Temperature Sensor Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A33 concerns drive motor b temperature sensor circuit high. Learn what this fault indicates and where to begin diagnosis.P0A34Drive Motor B Temperature Sensor Circuit IntermittentCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A34 concerns drive motor b temperature sensor circuit intermittent. Learn what this fault indicates and where to begin diagnosis.P0A35Drive Motor B Over TemperatureCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A35 concerns drive motor b over temperature. Learn what this fault indicates and where to begin diagnosis.P0A36Generator Temperature Sensor CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A36 concerns generator temperature sensor circuit. Learn what this fault indicates and where to begin diagnosis.P0A37Generator Temperature Sensor Circuit Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A37 concerns generator temperature sensor circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0A38Generator Temperature Sensor Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A38 concerns generator temperature sensor circuit low. Learn what this fault indicates and where to begin diagnosis.