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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 1153–1176 of 2110

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P227ABarometric Pressure Sensor C CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP227A relates to barometric pressure sensor c circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P227BBarometric Pressure Sensor C Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP227B relates to barometric pressure sensor c circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P227CBarometric Pressure Sensor C Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP227C relates to barometric pressure sensor c circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P227DBarometric Pressure Sensor C Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP227D relates to barometric pressure sensor c circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P227EBarometric Pressure Sensor C Circuit Intermittent/ErraticCheck soonSensors & Electronics30–120 minutes for initial diagnosisP227E relates to barometric pressure sensor c circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P227FAir Flow Restriction/Air Leak Between Air Filter and MAF Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP227F relates to air flow restriction/air leak between air filter and maf bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2280Air Flow Restriction/Air Leak Between Air Filter and MAF Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2280 relates to air flow restriction/air leak between air filter and maf bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2281Air Leak Between MAF and Throttle BodyCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2281 relates to air leak between maf and throttle body. Check the fault conditions and vehicle-specific procedure before replacing parts.P2282Air Leak Between Throttle Body and Intake ValvesCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2282 relates to air leak between throttle body and intake valves. Check the fault conditions and vehicle-specific procedure before replacing parts.P2297O2 Sensor Out of Range During Deceleration Bank 1 Sensor 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2297 relates to o2 sensor out of range during deceleration bank 1 sensor 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2298O2 Sensor Out of Range During Deceleration Bank 2 Sensor 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2298 relates to o2 sensor out of range during deceleration bank 2 sensor 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2299Brake Pedal Position/Accelerator Pedal Position IncompatibleCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2299 relates to brake pedal position/accelerator pedal position incompatible. Check the fault conditions and vehicle-specific procedure before replacing parts.P229ENOx Sensor Circuit Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP229E relates to nox sensor circuit bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P229FNOx Sensor Circuit Range/Performance Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP229F relates to nox sensor circuit range/performance bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P22A0NOx Sensor Circuit Low Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A0 relates to nox sensor circuit low bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P22A1NOx Sensor Circuit High Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A1 relates to nox sensor circuit high bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P22A2NOx Sensor Circuit Intermittent Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A2 relates to nox sensor circuit intermittent bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P22A3NOx Sensor Heater Control Circuit/Open Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A3 relates to nox sensor heater control circuit/open bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P22A4NOx Sensor Heater Control Circuit Low Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A4 relates to nox sensor heater control circuit low bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P22A5NOx Sensor Heater Control Circuit High Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A5 relates to nox sensor heater control circuit high bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P22A6NOx Sensor Heater Sense Circuit Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A6 relates to nox sensor heater sense circuit bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P22A7NOx Sensor Heater Sense Circuit Range/Performance Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A7 relates to nox sensor heater sense circuit range/performance bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P22A8NOx Sensor Heater Sense Circuit Low Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A8 relates to nox sensor heater sense circuit low bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P22A9NOx Sensor Heater Sense Circuit High Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A9 relates to nox sensor heater sense circuit high bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.