Diagnostic library
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9,253 diagnostic guides
Find codes by symptomChoose what you notice to search matching code guides.
Rough idle or shakingVibration while stoppedHard to startLong cranking or no-startEngine stallsCuts out at idle or on the roadHesitates or loses powerSlow response when acceleratingBattery light is onCharging system warningHarsh 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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These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.
Diagnostic codes
Showing 1081–1104 of 1939
P22B7O2 Sensor Pumping Current Trim Circuit High Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22B8O2 Sensor Positive Current Control Circuit/Open Bank 2 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22B9O2 Sensor Positive Current Control Circuit Low Bank 2 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22BAO2 Sensor Positive Current Control Circuit High Bank 2 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22BFO2 Sensor Negative Current Control Circuit/Open Bank 2 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22C0O2 Sensor Negative Current Control Circuit Low Bank 2 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22C1O2 Sensor Negative Current Control Circuit High Bank 2 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22C2O2 Sensor Pumping Current Trim Circuit/Open Bank 2 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22C3O2 Sensor Pumping Current Trim Circuit Low Bank 2 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22C4O2 Sensor Pumping Current Trim Circuit High Bank 2 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22C5Turbocharger Compressor Outlet Valve Control Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP22C6Turbocharger Compressor Outlet Valve Control Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP22C7Turbocharger Compressor Outlet Valve Control Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP22C8Turbocharger Compressor Outlet Valve Stuck OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP22C9Turbocharger Compressor Outlet Valve Stuck ClosedCheck soonSensors & Electronics30–120 minutes for initial diagnosisP22CATurbocharger Compressor Outlet Switching Valve Control Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP22CBTurbocharger Compressor Outlet Switching Valve Control Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP22CCTurbocharger Compressor Outlet Switching Valve Control Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP22CDTurbocharger Compressor Outlet Switching Valve Stuck OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP22CETurbocharger Compressor Outlet Switching Valve Stuck ClosedCheck soonSensors & Electronics30–120 minutes for initial diagnosisP22CFTurbocharger Turbine Inlet Valve Control Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP22D0Turbocharger Turbine Inlet Valve Control Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP22D1Turbocharger Turbine Inlet Valve Control Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP22D2Turbocharger Turbine Inlet Valve Stuck OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosis