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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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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 961–984 of 9253

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P0188Fuel Temperature Sensor B Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP0188 relates to fuel temperature sensor b circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0189Fuel Temperature Sensor B Circuit IntermittentCheck soonFuel System30–120 minutes for initial diagnosisP0189 relates to fuel temperature sensor b circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P018AFuel Pressure Sensor B CircuitCheck soonFuel System30–120 minutes for initial diagnosisP018A relates to fuel pressure sensor b circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P018BFuel Pressure Sensor B Circuit Range/PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP018B relates to fuel pressure sensor b circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P018CFuel Pressure Sensor B Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP018C relates to fuel pressure sensor b circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P018DFuel Pressure Sensor B Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP018D relates to fuel pressure sensor b circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P018EFuel Pressure Sensor B Circuit Intermittent/ErraticCheck soonFuel System30–120 minutes for initial diagnosisP018E relates to fuel pressure sensor b circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P018FFuel System Over Pressure Relief Valve Frequent ActivationCheck soonFuel System30–120 minutes for initial diagnosisP018F relates to fuel system over pressure relief valve frequent activation. Check the fault conditions and vehicle-specific procedure before replacing parts.P0190Fuel Rail Pressure Sensor A CircuitCheck soonFuel System45–120 minutes for initial diagnosisP0190 means Fuel Rail Pressure Sensor A Circuit. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.P0195Engine Oil Temperature Sensor A CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0195 relates to engine oil temperature sensor a circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0196Engine Oil Temperature Sensor A Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0196 relates to engine oil temperature sensor a range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P0197Engine Oil Temperature Sensor A Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0197 relates to engine oil temperature sensor a circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P0198Engine Oil Temperature Sensor A Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0198 relates to engine oil temperature sensor a circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0199Engine Oil Temperature Sensor A Circuit Intermittent/ErraticCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0199 relates to engine oil temperature sensor a circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P019AO2 Sensor Delayed Response - Rich to Lean Bank 1 Sensor 3Check soonSensors & Electronics30–120 minutes for initial diagnosisP019A relates to o2 sensor delayed response - rich to lean bank 1 sensor 3. Check the fault conditions and vehicle-specific procedure before replacing parts.P019BO2 Sensor Delayed Response - Lean to Rich Bank 1 Sensor 3Check soonSensors & Electronics30–120 minutes for initial diagnosisP019B relates to o2 sensor delayed response - lean to rich bank 1 sensor 3. Check the fault conditions and vehicle-specific procedure before replacing parts.P019CO2 Sensor Delayed Response - Rich to Lean Bank 2 Sensor 3Check soonSensors & Electronics30–120 minutes for initial diagnosisP019C relates to o2 sensor delayed response - rich to lean bank 2 sensor 3. Check the fault conditions and vehicle-specific procedure before replacing parts.P019DO2 Sensor Delayed Response - Lean to Rich Bank 2 Sensor 3Check soonSensors & Electronics30–120 minutes for initial diagnosisP019D relates to o2 sensor delayed response - lean to rich bank 2 sensor 3. Check the fault conditions and vehicle-specific procedure before replacing parts.P019EAlternative Fuel Tank A Pressure Sensor CircuitCheck soonFuel System30–120 minutes for initial diagnosisP019E relates to alternative fuel tank a pressure sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P019FAlternative Fuel Tank A Pressure Sensor PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP019F relates to alternative fuel tank a pressure sensor performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P01A0Alternative Fuel Tank A Pressure Sensor Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP01A0 relates to alternative fuel tank a pressure sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P01A1Alternative Fuel Tank A Pressure Sensor Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP01A1 relates to alternative fuel tank a pressure sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P01A2Alternative Fuel Tank A Pressure Sensor Circuit Intermittent/ErraticCheck soonFuel System30–120 minutes for initial diagnosisP01A2 relates to alternative fuel tank a pressure sensor circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P01A3Alternative Fuel Rail Pressure Sensor CircuitCheck soonFuel System30–120 minutes for initial diagnosisP01A3 relates to alternative fuel rail pressure sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.