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9,253 diagnostic guides

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Find codes by symptomChoose what you notice to search matching code guides.

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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Severity

All severities9253 Low priority305 Check soon8256 Urgent621

Code family

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 6433–6456 of 9253

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P28E4Shift Motor Driver Current/Temperature Too HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP28E4 relates to shift motor driver current/temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P28E5Shift Motor PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP28E5 relates to shift motor performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P28E6Shift Motor OverspeedUrgentTransmission Issues30–120 minutes for initial diagnosisP28E6 relates to shift motor overspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P28E7Shift Motor Position Sensor Circuit/OpenCheck soonTransmission Issues30–120 minutes for initial diagnosisP28E7 relates to shift motor position sensor circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P28E8Shift Motor Position Sensor Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP28E8 relates to shift motor position sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P28E9Shift Motor Position Sensor Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP28E9 relates to shift motor position sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P28EAShift Motor Position Sensor Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP28EA relates to shift motor position sensor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P28EBShift Motor Position Not LearnedCheck soonTransmission Issues30–120 minutes for initial diagnosisP28EB relates to shift motor position not learned. Check the fault conditions and vehicle-specific procedure before replacing parts.P28ECShift Motor Position Sensor Exceeded Learning LimitCheck soonTransmission Issues30–120 minutes for initial diagnosisP28EC relates to shift motor position sensor exceeded learning limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P28EDElectric/Auxiliary Transmission Fluid Pump B OverspeedUrgentTransmission Issues30–120 minutes for initial diagnosisP28ED relates to electric/auxiliary transmission fluid pump b overspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P28EEElectric/Auxiliary Transmission Fluid Pump B UnderspeedCheck soonTransmission Issues30–120 minutes for initial diagnosisP28EE relates to electric/auxiliary transmission fluid pump b underspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P28EFEngine Disconnect Clutch Actuator Performance/Stuck OffCheck soonTransmission Issues30–120 minutes for initial diagnosisP28EF relates to engine disconnect clutch actuator performance/stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.P28F0Engine Disconnect Clutch Actuator Stuck OnCheck soonTransmission Issues30–120 minutes for initial diagnosisP28F0 relates to engine disconnect clutch actuator stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P28F1Engine Disconnect Clutch Pressure Sensor CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP28F1 relates to engine disconnect clutch pressure sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P28F2Engine Disconnect Clutch Pressure Sensor Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP28F2 relates to engine disconnect clutch pressure sensor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P28F3Engine Disconnect Clutch Pressure Sensor Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP28F3 relates to engine disconnect clutch pressure sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P28F4Engine Disconnect Clutch Pressure Sensor Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP28F4 relates to engine disconnect clutch pressure sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P28F5Engine Disconnect Clutch Pressure Sensor Circuit Intermittent/ErraticCheck soonTransmission Issues30–120 minutes for initial diagnosisP28F5 relates to engine disconnect clutch pressure sensor circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P28F6Engine Disconnect Clutch Actuator Circuit IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP28F6 relates to engine disconnect clutch actuator circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P28F7Exhaust Pressure Too High Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP28F7 relates to exhaust pressure too high bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P28F8Exhaust Pressure Too High Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP28F8 relates to exhaust pressure too high bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P28F9Exhaust Pressure Too Low Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP28F9 relates to exhaust pressure too low bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P28FAExhaust Pressure Too Low Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP28FA relates to exhaust pressure too low bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2A00O2 Sensor Circuit Range/Performance Bank 1 Sensor 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2A00 relates to o2 sensor circuit range/performance bank 1 sensor 1. Check the fault conditions and vehicle-specific procedure before replacing parts.