Diagnostic library

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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

FiltersSeverity · family

Severity

All severities9253 Low priority305 Check soon8256 Urgent621

Code family

All families9253 P · Powertrain7353 B · Body193 C · Chassis479 U · Network1228

Vehicle coverage

These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.

Diagnostic codes

Showing 121–144 of 9253

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B00C1Passenger Seat Occupant Classification Sensor BCheck soonBody & Restraints45–120 minutes for initial diagnosisB00C1 concerns passenger seat occupant classification sensor b. Learn what this fault indicates and where to begin diagnosis.B00C2Passenger Seat Occupant Classification Sensor CCheck soonBody & Restraints45–120 minutes for initial diagnosisB00C2 concerns passenger seat occupant classification sensor c. Learn what this fault indicates and where to begin diagnosis.B00C3Passenger Seat Occupant Classification Sensor DCheck soonBody & Restraints45–120 minutes for initial diagnosisB00C3 concerns passenger seat occupant classification sensor d. Learn what this fault indicates and where to begin diagnosis.B00C4Passenger Seat Occupant Classification Sensor ECheck soonBody & Restraints45–120 minutes for initial diagnosisB00C4 concerns passenger seat occupant classification sensor e. Learn what this fault indicates and where to begin diagnosis.B00C5Passenger Seat Track Position Restraints SensorUrgentBody & Restraints45–120 minutes for initial diagnosisB00C5 concerns passenger seat track position restraints sensor. Learn what this fault indicates and where to begin diagnosis.B00C6Passenger Seat Recline Position Restraints SensorUrgentBody & Restraints45–120 minutes for initial diagnosisB00C6 concerns passenger seat recline position restraints sensor. Learn what this fault indicates and where to begin diagnosis.B00C7Passenger Seat Occupant Position Sensor ACheck soonBody & Restraints45–120 minutes for initial diagnosisB00C7 concerns passenger seat occupant position sensor a. Learn what this fault indicates and where to begin diagnosis.B00C8Passenger Seat Occupant Position Sensor BCheck soonBody & Restraints45–120 minutes for initial diagnosisB00C8 concerns passenger seat occupant position sensor b. Learn what this fault indicates and where to begin diagnosis.B00C9Passenger Seat Occupant Position Sensor CCheck soonBody & Restraints45–120 minutes for initial diagnosisB00C9 concerns passenger seat occupant position sensor c. Learn what this fault indicates and where to begin diagnosis.B00CAPassenger Seat Occupant Position Sensor DCheck soonBody & Restraints45–120 minutes for initial diagnosisB00CA concerns passenger seat occupant position sensor d. Learn what this fault indicates and where to begin diagnosis.B00CBPassenger Seat Occupant Position Sensor ECheck soonBody & Restraints45–120 minutes for initial diagnosisB00CB concerns passenger seat occupant position sensor e. Learn what this fault indicates and where to begin diagnosis.B00D0Driver Seat Belt IndicatorCheck soonBody & Restraints45–120 minutes for initial diagnosisB00D0 concerns driver seat belt indicator. Learn what this fault indicates and where to begin diagnosis.B00D1Passenger Seat Belt IndicatorCheck soonBody & Restraints45–120 minutes for initial diagnosisB00D1 concerns passenger seat belt indicator. Learn what this fault indicates and where to begin diagnosis.B00D2Restraint System Malfunction Indicator 1UrgentBody & Restraints45–120 minutes for initial diagnosisB00D2 concerns restraint system malfunction indicator 1. Learn what this fault indicates and where to begin diagnosis.B00D3Restraint System Malfunction Indicator 2UrgentBody & Restraints45–120 minutes for initial diagnosisB00D3 concerns restraint system malfunction indicator 2. Learn what this fault indicates and where to begin diagnosis.B00D4Restraint System Malfunction Audible IndicatorUrgentBody & Restraints45–120 minutes for initial diagnosisB00D4 concerns restraint system malfunction audible indicator. Learn what this fault indicates and where to begin diagnosis.B00D5Restraint System Passenger Disable IndicatorUrgentBody & Restraints45–120 minutes for initial diagnosisB00D5 concerns restraint system passenger disable indicator. Learn what this fault indicates and where to begin diagnosis.B00DFPassenger Restraints Disable SwitchUrgentBody & Restraints45–120 minutes for initial diagnosisB00DF concerns passenger restraints disable switch. Learn what this fault indicates and where to begin diagnosis.B00E0Third Row Left Seat Belt Pretensioner B Deployment ControlUrgentBody & Restraints45–120 minutes for initial diagnosisB00E0 concerns third row left seat belt pretensioner b deployment control. Learn what this fault indicates and where to begin diagnosis.B00E1Third Row Right Seat Belt Pretensioner B Deployment ControlUrgentBody & Restraints45–120 minutes for initial diagnosisB00E1 concerns third row right seat belt pretensioner b deployment control. Learn what this fault indicates and where to begin diagnosis.B00E2Third Row Center Seat Belt Pretensioner B Deployment ControlUrgentBody & Restraints45–120 minutes for initial diagnosisB00E2 concerns third row center seat belt pretensioner b deployment control. Learn what this fault indicates and where to begin diagnosis.B00E3Second Row Left Seat Belt Pretensioner C Deployment ControlUrgentBody & Restraints45–120 minutes for initial diagnosisB00E3 concerns second row left seat belt pretensioner c deployment control. Learn what this fault indicates and where to begin diagnosis.B00E4Second Row Right Seat Belt Pretensioner C Deployment ControlUrgentBody & Restraints45–120 minutes for initial diagnosisB00E4 concerns second row right seat belt pretensioner c deployment control. Learn what this fault indicates and where to begin diagnosis.B00E5Second Row Center Seat Belt Pretensioner C Deployment ControlUrgentBody & Restraints45–120 minutes for initial diagnosisB00E5 concerns second row center seat belt pretensioner c deployment control. Learn what this fault indicates and where to begin diagnosis.