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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 625–648 of 1570

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P0C65Generator Position Sensor Circuit A Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C65 concerns generator position sensor circuit a range/performance. Learn what this fault indicates and where to begin diagnosis.P0C66Generator Position Sensor Circuit A LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C66 concerns generator position sensor circuit a low. Learn what this fault indicates and where to begin diagnosis.P0C67Generator Position Sensor Circuit A HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C67 concerns generator position sensor circuit a high. Learn what this fault indicates and where to begin diagnosis.P0C68Generator Position Sensor Circuit A Intermittent/ErraticCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C68 concerns generator position sensor circuit a intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.P0C69Generator Position Sensor Circuit BCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C69 concerns generator position sensor circuit b. Learn what this fault indicates and where to begin diagnosis.P0C6AGenerator Position Sensor Circuit B Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C6A concerns generator position sensor circuit b range/performance. Learn what this fault indicates and where to begin diagnosis.P0C6BGenerator Position Sensor Circuit B LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C6B concerns generator position sensor circuit b low. Learn what this fault indicates and where to begin diagnosis.P0C6CGenerator Position Sensor Circuit B HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C6C concerns generator position sensor circuit b high. Learn what this fault indicates and where to begin diagnosis.P0C6DGenerator Position Sensor Circuit B Intermittent/ErraticCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C6D concerns generator position sensor circuit b intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.P0C6EHybrid/EV Battery Temperature Sensor A/B CorrelationCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C6E concerns hybrid/ev battery temperature sensor a/b correlation. Learn what this fault indicates and where to begin diagnosis.P0C6FHybrid/EV Battery Temperature Sensor B/C CorrelationCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C6F concerns hybrid/ev battery temperature sensor b/c correlation. Learn what this fault indicates and where to begin diagnosis.P0C70Hybrid/EV Battery Temperature Sensor C/D CorrelationCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C70 concerns hybrid/ev battery temperature sensor c/d correlation. Learn what this fault indicates and where to begin diagnosis.P0C71Hybrid/EV Battery Temperature Sensor D/E CorrelationCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C71 concerns hybrid/ev battery temperature sensor d/e correlation. Learn what this fault indicates and where to begin diagnosis.P0C72Hybrid/EV Battery Temperature Sensor E/F CorrelationCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C72 concerns hybrid/ev battery temperature sensor e/f correlation. Learn what this fault indicates and where to begin diagnosis.P0C73Motor Electronics Coolant Pump A Control PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C73 concerns motor electronics coolant pump a control performance. Learn what this fault indicates and where to begin diagnosis.P0C74Motor Electronics Coolant Pump B Control PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C74 concerns motor electronics coolant pump b control performance. Learn what this fault indicates and where to begin diagnosis.P0C75Hybrid/EV Battery System Discharge Time Too ShortCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C75 concerns hybrid/ev battery system discharge time too short. Learn what this fault indicates and where to begin diagnosis.P0C76Hybrid/EV Battery System Discharge Time Too LongCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C76 concerns hybrid/ev battery system discharge time too long. Learn what this fault indicates and where to begin diagnosis.P0C77Hybrid/EV Battery System Precharge Time Too ShortCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C77 concerns hybrid/ev battery system precharge time too short. Learn what this fault indicates and where to begin diagnosis.P0C78Hybrid/EV Battery System Precharge Time Too LongCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C78 concerns hybrid/ev battery system precharge time too long. Learn what this fault indicates and where to begin diagnosis.P0C79Drive Motor A Inverter Voltage Too HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C79 concerns drive motor a inverter voltage too high. Learn what this fault indicates and where to begin diagnosis.P0C7ADrive Motor B Inverter Voltage Too HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C7A concerns drive motor b inverter voltage too high. Learn what this fault indicates and where to begin diagnosis.P0C7BGenerator Inverter Voltage Too HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C7B concerns generator inverter voltage too high. Learn what this fault indicates and where to begin diagnosis.P0C7CHybrid/EV Battery Temperature Sensor G CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0C7C concerns hybrid/ev battery temperature sensor g circuit. Learn what this fault indicates and where to begin diagnosis.