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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 769–792 of 1939
P205FReductant System Performance Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP2062Reductant/Regeneration Supply Control Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2063Reductant/Regeneration Supply Control Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2064Reductant/Regeneration Supply Control Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP206AReductant Quality Sensor CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP206BReductant Quality Sensor Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP206CReductant Quality Sensor Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP206DReductant Quality Sensor Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP206EIntake Manifold Tuning (IMT) Valve Stuck Open Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP206FIntake Manifold Tuning (IMT) Valve Stuck Closed Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP2070Intake Manifold Tuning (IMT) Valve Stuck Open Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2071Intake Manifold Tuning (IMT) Valve Stuck Closed Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2072Throttle Actuator Control System - Ice Blockage Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2073Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at IdleCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2074Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Higher LoadCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2075Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2076Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit Range/Performance Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2077Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit Low Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2078Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit High Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2079Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit Intermittent Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP207AIntake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP207BIntake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit Range/Performance Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP207CIntake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit Low Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP207DIntake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit High Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosis