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 5233–5256 of 6682
P28E4Shift Motor Driver Current/Temperature Too HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP28E5Shift Motor PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP28E7Shift Motor Position Sensor Circuit/OpenCheck soonTransmission Issues30–120 minutes for initial diagnosisP28E8Shift Motor Position Sensor Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP28E9Shift Motor Position Sensor Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP28EAShift Motor Position Sensor Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP28EBShift Motor Position Not LearnedCheck soonTransmission Issues30–120 minutes for initial diagnosisP28ECShift Motor Position Sensor Exceeded Learning LimitCheck soonTransmission Issues30–120 minutes for initial diagnosisP28EEElectric/Auxiliary Transmission Fluid Pump B UnderspeedCheck soonTransmission Issues30–120 minutes for initial diagnosisP28EFEngine Disconnect Clutch Actuator Performance/Stuck OffCheck soonTransmission Issues30–120 minutes for initial diagnosisP28F0Engine Disconnect Clutch Actuator Stuck OnCheck soonTransmission Issues30–120 minutes for initial diagnosisP28F1Engine Disconnect Clutch Pressure Sensor CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP28F2Engine Disconnect Clutch Pressure Sensor Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP28F3Engine Disconnect Clutch Pressure Sensor Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP28F4Engine Disconnect Clutch Pressure Sensor Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP28F5Engine Disconnect Clutch Pressure Sensor Circuit Intermittent/ErraticCheck soonTransmission Issues30–120 minutes for initial diagnosisP28F6Engine Disconnect Clutch Actuator Circuit IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP28F7Exhaust Pressure Too High Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP28F8Exhaust Pressure Too High Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP28F9Exhaust Pressure Too Low Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP28FAExhaust Pressure Too Low Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP2A00O2 Sensor Circuit Range/Performance Bank 1 Sensor 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2A01O2 Sensor Circuit Range/Performance Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP2A02O2 Sensor Circuit Range/Performance Bank 1 Sensor 3Check soonSensors & Electronics30–120 minutes for initial diagnosis