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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 49–72 of 1939

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P00ABIntake Air Temperature Sensor 1 Circuit Range/Performance Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP00AB relates to intake air temperature sensor 1 circuit range/performance bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P00ACIntake Air Temperature Sensor 1 Circuit Low Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP00AC relates to intake air temperature sensor 1 circuit low bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P00ADIntake Air Temperature Sensor 1 Circuit High Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP00AD relates to intake air temperature sensor 1 circuit high bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P00AEIntake Air Temperature Sensor 1 Circuit Intermittent Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP00AE relates to intake air temperature sensor 1 circuit intermittent bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P00AFTurbocharger/Supercharger Boost Control A Module PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP00AF relates to turbocharger/supercharger boost control a module performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P00B0Turbocharger/Supercharger Boost Control B Module PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP00B0 relates to turbocharger/supercharger boost control b module performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P00B8MAP - Mass or Volume Air Flow Correlation Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP00B8 relates to map - mass or volume air flow correlation bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P00BCMass or Volume Air Flow A Circuit Range/Performance - Air Flow Too LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP00BC relates to mass or volume air flow a circuit range/performance - air flow too low. Check the fault conditions and vehicle-specific procedure before replacing parts.P00BDMass or Volume Air Flow A Circuit Range/Performance - Air Flow Too HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP00BD relates to mass or volume air flow a circuit range/performance - air flow too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P00BEMass or Volume Air Flow B Circuit Range/Performance - Air Flow Too LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP00BE relates to mass or volume air flow b circuit range/performance - air flow too low. Check the fault conditions and vehicle-specific procedure before replacing parts.P00BFMass or Volume Air Flow B Circuit Range/Performance - Air Flow Too HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP00BF relates to mass or volume air flow b circuit range/performance - air flow too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P00C0Turbocharger/Supercharger Bypass Valve B Control CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP00C0 relates to turbocharger/supercharger bypass valve b control circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P00C1Turbocharger/Supercharger Bypass Valve B Control Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP00C1 relates to turbocharger/supercharger bypass valve b control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P00C2Turbocharger/Supercharger Bypass Valve B Control Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP00C2 relates to turbocharger/supercharger bypass valve b control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P00C3Turbocharger/Supercharger Bypass Valve B Control Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP00C3 relates to turbocharger/supercharger bypass valve b control circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P00C4Turbocharger/Supercharger Bypass Valve B - MechanicalCheck soonSensors & Electronics30–120 minutes for initial diagnosisP00C4 relates to turbocharger/supercharger bypass valve b - mechanical. Check the fault conditions and vehicle-specific procedure before replacing parts.P00C7Intake Air Pressure Measurement System - Multiple Sensor Correlation Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP00C7 relates to intake air pressure measurement system - multiple sensor correlation bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P00CEIntake Air Temperature Measurement System - Multiple Sensor Correlation Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP00CE relates to intake air temperature measurement system - multiple sensor correlation bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P00CFBarometric Pressure - Turbocharger/Supercharger Boost Sensor A CorrelationCheck soonSensors & Electronics30–120 minutes for initial diagnosisP00CF relates to barometric pressure - turbocharger/supercharger boost sensor a correlation. Check the fault conditions and vehicle-specific procedure before replacing parts.P00D0Barometric Pressure - Turbocharger/Supercharger Boost Sensor B CorrelationCheck soonSensors & Electronics30–120 minutes for initial diagnosisP00D0 relates to barometric pressure - turbocharger/supercharger boost sensor b correlation. Check the fault conditions and vehicle-specific procedure before replacing parts.P00D5HO2S Sensor Correlation Bank 1 Sensor 1/Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP00D5 relates to ho2s sensor correlation bank 1 sensor 1/bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P00D6HO2S Sensor Correlation Bank 2 Sensor 1/Bank 2 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP00D6 relates to ho2s sensor correlation bank 2 sensor 1/bank 2 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P00D7Turbocharger/Supercharger Bypass Valve A Temperature Too HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP00D7 relates to turbocharger/supercharger bypass valve a temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P00D8Turbocharger/Supercharger Bypass Valve B Temperature Too HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP00D8 relates to turbocharger/supercharger bypass valve b temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.