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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 193–216 of 833
P0843Transmission Fluid Pressure Sensor/Switch A Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP0844Transmission Fluid Pressure Sensor/Switch A Circuit IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP0845Transmission Fluid Pressure Sensor/Switch B CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP0846Transmission Fluid Pressure Sensor/Switch B Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP0847Transmission Fluid Pressure Sensor/Switch B Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP0848Transmission Fluid Pressure Sensor/Switch B Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP0849Transmission Fluid Pressure Sensor/Switch B Circuit IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP084ATransmission Fluid Pressure Sensor/Switch H CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP084BTransmission Fluid Pressure Sensor/Switch H Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP084CTransmission Fluid Pressure Sensor/Switch H Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP084DTransmission Fluid Pressure Sensor/Switch H Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP084ETransmission Fluid Pressure Sensor/Switch H Circuit IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP085AGear Shift Control Module B Communication CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP085BGear Shift Control Module B Communication Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP085CGear Shift Control Module B Communication Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP085DGear Shift Control Module A PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP085EGear Shift Control Module B PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP085FUp and Down Shift Switch Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP0860Gear Shift Control Module A Communication CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP0861Gear Shift Control Module A Communication Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP0862Gear Shift Control Module A Communication Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP0867Transmission Fluid PressureCheck soonTransmission Issues30–120 minutes for initial diagnosisP0868Transmission Fluid Pressure LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP0869Transmission Fluid Pressure HighCheck soonTransmission Issues30–120 minutes for initial diagnosis