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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

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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 1057–1080 of 7353

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P04BAFuel Fill Door Position Sensor/Switch Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP04BA relates to fuel fill door position sensor/switch circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P04BBFuel Fill Door Lock Control Circuit/OpenLow priorityFuel System30–120 minutes for initial diagnosisP04BB relates to fuel fill door lock control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P04BCFuel Fill Door Lock Control Range/PerformanceLow priorityFuel System30–120 minutes for initial diagnosisP04BC relates to fuel fill door lock control range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P04BDFuel Fill Door Lock Control Circuit LowLow priorityFuel System30–120 minutes for initial diagnosisP04BD relates to fuel fill door lock control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P04BEFuel Fill Door Lock Control Circuit HighLow priorityFuel System30–120 minutes for initial diagnosisP04BE relates to fuel fill door lock control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P04BFFuel Fill Door Unlock Control Circuit/OpenCheck soonFuel System30–120 minutes for initial diagnosisP04BF relates to fuel fill door unlock control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P04C0Fuel Fill Door Unlock Control Range/PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP04C0 relates to fuel fill door unlock control range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P04C1Fuel Fill Door Unlock Control Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP04C1 relates to fuel fill door unlock control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P04C2Fuel Fill Door Unlock Control Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP04C2 relates to fuel fill door unlock control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P04C3Fuel Fill Door Lock Position Sensor/Switch CircuitLow priorityFuel System30–120 minutes for initial diagnosisP04C3 relates to fuel fill door lock position sensor/switch circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P04C4Fuel Fill Door Lock Position Sensor/Switch Circuit Range/PerformanceLow priorityFuel System30–120 minutes for initial diagnosisP04C4 relates to fuel fill door lock position sensor/switch circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P04C5Fuel Fill Door Lock Position Sensor/Switch Circuit LowLow priorityFuel System30–120 minutes for initial diagnosisP04C5 relates to fuel fill door lock position sensor/switch circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P04C6Fuel Fill Door Lock Position Sensor/Switch Circuit HighLow priorityFuel System30–120 minutes for initial diagnosisP04C6 relates to fuel fill door lock position sensor/switch circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P04C7Fuel Fill Door Lock Position Sensor/Switch Circuit Intermittent/ErraticLow priorityFuel System30–120 minutes for initial diagnosisP04C7 relates to fuel fill door lock position sensor/switch circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P04C8Fuel Fill Door Open Request Sensor/Switch CircuitCheck soonFuel System30–120 minutes for initial diagnosisP04C8 relates to fuel fill door open request sensor/switch circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P04C9Fuel Fill Door Open Request Sensor/Switch Performance/Stuck OffCheck soonFuel System30–120 minutes for initial diagnosisP04C9 relates to fuel fill door open request sensor/switch performance/stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.P04CAFuel Fill Door Open Request Sensor/Switch Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP04CA relates to fuel fill door open request sensor/switch circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P04CBFuel Fill Door Open Request Sensor/Switch Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP04CB relates to fuel fill door open request sensor/switch circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P04CCFuel Fill Door Open Request Sensor/Switch Circuit Intermittent/ErraticCheck soonFuel System30–120 minutes for initial diagnosisP04CC relates to fuel fill door open request sensor/switch circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P04CDFuel Fill Door Open Request Sensor/Switch Stuck OnCheck soonFuel System30–120 minutes for initial diagnosisP04CD relates to fuel fill door open request sensor/switch stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P04CEEGR Temperature Sensor C CircuitCheck soonEmissions System30–120 minutes for initial diagnosisP04CE relates to egr temperature sensor c circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P04CFEGR Temperature Sensor C Circuit Range/PerformanceCheck soonEmissions System30–120 minutes for initial diagnosisP04CF relates to egr temperature sensor c circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P04D0EGR Temperature Sensor C Circuit LowCheck soonEmissions System30–120 minutes for initial diagnosisP04D0 relates to egr temperature sensor c circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P04D1EGR Temperature Sensor C Circuit HighCheck soonEmissions System30–120 minutes for initial diagnosisP04D1 relates to egr temperature sensor c circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.