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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.

Fuel System Clear all

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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 1009–1016 of 1016

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P0211Injector Circuit/Open Cylinder 11Check soonFuel System45–120 minutes for initial diagnosisP0211 means Injector Circuit/Open Cylinder 11. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0212Injector Circuit/Open Cylinder 12Check soonFuel System45–120 minutes for initial diagnosisP0212 means Injector Circuit/Open Cylinder 12. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0213Cold Start Injector 1 MalfunctionCheck soonFuel System45–120 minutes for initial diagnosisP0213 means Cold Start Injector 1 Malfunction. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0214Cold Start Injector 2 MalfunctionCheck soonFuel System45–120 minutes for initial diagnosisP0214 means Cold Start Injector 2 Malfunction. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0216Injection Timing Control Circuit MalfunctionCheck soonFuel System45–120 minutes for initial diagnosisP0216 means Injection Timing Control Circuit Malfunction. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P0231Fuel Pump Secondary Circuit LowCheck soonFuel System45–120 minutes for initial diagnosisP0231 means Fuel Pump Secondary Circuit Low. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0232Fuel Pump Secondary Circuit HighCheck soonFuel System45–120 minutes for initial diagnosisP0232 means Fuel Pump Secondary Circuit High. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0233Fuel Pump Secondary Circuit IntermittentCheck soonFuel System45–120 minutes for initial diagnosisP0233 means Fuel Pump Secondary Circuit Intermittent. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.