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Search the code from your scanner, then narrow the library by system, severity, or code family.

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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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 193–216 of 1570

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P0A4FGenerator Position Sensor Circuit IntermittentCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A4F concerns generator position sensor circuit intermittent. Learn what this fault indicates and where to begin diagnosis.P0A50Generator Position Sensor Circuit OverspeedCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A50 concerns generator position sensor circuit overspeed. Learn what this fault indicates and where to begin diagnosis.P0A51Drive Motor A Current Sensor CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A51 concerns drive motor a current sensor circuit. Learn what this fault indicates and where to begin diagnosis.P0A52Drive Motor A Current Sensor Circuit Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A52 concerns drive motor a current sensor circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0A53Drive Motor A Current Sensor Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A53 concerns drive motor a current sensor circuit low. Learn what this fault indicates and where to begin diagnosis.P0A54Drive Motor A Current Sensor Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A54 concerns drive motor a current sensor circuit high. Learn what this fault indicates and where to begin diagnosis.P0A55Drive Motor B Current Sensor CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A55 concerns drive motor b current sensor circuit. Learn what this fault indicates and where to begin diagnosis.P0A56Drive Motor B Current Sensor Circuit Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A56 concerns drive motor b current sensor circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0A57Drive Motor B Current Sensor Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A57 concerns drive motor b current sensor circuit low. Learn what this fault indicates and where to begin diagnosis.P0A58Drive Motor B Current Sensor Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A58 concerns drive motor b current sensor circuit high. Learn what this fault indicates and where to begin diagnosis.P0A59Generator Current Sensor CircuitCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A59 concerns generator current sensor circuit. Learn what this fault indicates and where to begin diagnosis.P0A5AGenerator Current Sensor Circuit Range/PerformanceCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A5A concerns generator current sensor circuit range/performance. Learn what this fault indicates and where to begin diagnosis.P0A5BGenerator Current Sensor Circuit LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A5B concerns generator current sensor circuit low. Learn what this fault indicates and where to begin diagnosis.P0A5CGenerator Current Sensor Circuit HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A5C concerns generator current sensor circuit high. Learn what this fault indicates and where to begin diagnosis.P0A5DDrive Motor A Phase U CurrentCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A5D concerns drive motor a phase u current. Learn what this fault indicates and where to begin diagnosis.P0A5EDrive Motor A Phase U Current LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A5E concerns drive motor a phase u current low. Learn what this fault indicates and where to begin diagnosis.P0A5FDrive Motor A Phase U Current HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A5F concerns drive motor a phase u current high. Learn what this fault indicates and where to begin diagnosis.P0A60Drive Motor A Phase V CurrentCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A60 concerns drive motor a phase v current. Learn what this fault indicates and where to begin diagnosis.P0A61Drive Motor A Phase V Current LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A61 concerns drive motor a phase v current low. Learn what this fault indicates and where to begin diagnosis.P0A62Drive Motor A Phase V Current HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A62 concerns drive motor a phase v current high. Learn what this fault indicates and where to begin diagnosis.P0A63Drive Motor A Phase W CurrentCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A63 concerns drive motor a phase w current. Learn what this fault indicates and where to begin diagnosis.P0A64Drive Motor A Phase W Current LowCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A64 concerns drive motor a phase w current low. Learn what this fault indicates and where to begin diagnosis.P0A65Drive Motor A Phase W Current HighCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A65 concerns drive motor a phase w current high. Learn what this fault indicates and where to begin diagnosis.P0A66Drive Motor B Phase U CurrentCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0A66 concerns drive motor b phase u current. Learn what this fault indicates and where to begin diagnosis.