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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

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 337–360 of 1049

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P0694Fan 2 Control Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP0694 relates to fan 2 control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0695Fan 3 Control Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP0695 relates to fan 3 control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P0696Fan 3 Control Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP0696 relates to fan 3 control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P069ACylinder 9 Glow Plug Control Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP069A relates to cylinder 9 glow plug control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P069BCylinder 9 Glow Plug Control Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP069B relates to cylinder 9 glow plug control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P069CCylinder 10 Glow Plug Control Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP069C relates to cylinder 10 glow plug control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P069DCylinder 10 Glow Plug Control Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP069D relates to cylinder 10 glow plug control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P06B9Cylinder 1 Glow Plug Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP06B9 relates to cylinder 1 glow plug circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P06BACylinder 2 Glow Plug Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP06BA relates to cylinder 2 glow plug circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P06BBCylinder 3 Glow Plug Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP06BB relates to cylinder 3 glow plug circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P06BCCylinder 4 Glow Plug Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP06BC relates to cylinder 4 glow plug circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P06BDCylinder 5 Glow Plug Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP06BD relates to cylinder 5 glow plug circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P06BECylinder 6 Glow Plug Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP06BE relates to cylinder 6 glow plug circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P06BFCylinder 7 Glow Plug Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP06BF relates to cylinder 7 glow plug circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P06C0Cylinder 8 Glow Plug Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP06C0 relates to cylinder 8 glow plug circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P06C1Cylinder 9 Glow Plug Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP06C1 relates to cylinder 9 glow plug circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P06C2Cylinder 10 Glow Plug Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP06C2 relates to cylinder 10 glow plug circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P06C3Cylinder 11 Glow Plug Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP06C3 relates to cylinder 11 glow plug circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P06C4Cylinder 12 Glow Plug Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP06C4 relates to cylinder 12 glow plug circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P06C5Cylinder 1 Glow Plug IncorrectCheck soonEngine Problems30–120 minutes for initial diagnosisP06C5 relates to cylinder 1 glow plug incorrect. Check the fault conditions and vehicle-specific procedure before replacing parts.P06C6Cylinder 2 Glow Plug IncorrectCheck soonEngine Problems30–120 minutes for initial diagnosisP06C6 relates to cylinder 2 glow plug incorrect. Check the fault conditions and vehicle-specific procedure before replacing parts.P06C7Cylinder 3 Glow Plug IncorrectCheck soonEngine Problems30–120 minutes for initial diagnosisP06C7 relates to cylinder 3 glow plug incorrect. Check the fault conditions and vehicle-specific procedure before replacing parts.P06C8Cylinder 4 Glow Plug IncorrectCheck soonEngine Problems30–120 minutes for initial diagnosisP06C8 relates to cylinder 4 glow plug incorrect. Check the fault conditions and vehicle-specific procedure before replacing parts.P06C9Cylinder 5 Glow Plug IncorrectCheck soonEngine Problems30–120 minutes for initial diagnosisP06C9 relates to cylinder 5 glow plug incorrect. Check the fault conditions and vehicle-specific procedure before replacing parts.