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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.

Transmission Issues P · Powertrain Clear all

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Engine1049 Emissions515 Fuel1016 Sensors & Electronics2110 Transmission866 Electrical & Charging1797 Body & Restraints193 Chassis & Brakes479 Network & Communication1228

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All severities9253 Low priority305 Check soon8256 Urgent621

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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 817–840 of 866

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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.P2C4AClutch Actuator Position Sensor CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C4A relates to clutch actuator position sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C4BClutch Actuator Position Sensor Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C4B relates to clutch actuator position sensor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C4CClutch Actuator Position Sensor Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C4C relates to clutch actuator position sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C4DClutch Actuator Position Sensor Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C4D relates to clutch actuator position sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C4EClutch Actuator Position Sensor Circuit Intermittent/ErraticCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C4E relates to clutch actuator position sensor circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C4FClutch Actuator PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C4F relates to clutch actuator performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C50Clutch Pedal Position Sensor A/Clutch Actuator Position Sensor CorrelationCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C50 relates to clutch pedal position sensor a/clutch actuator position sensor correlation. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C83Cold Start Shift Time Too ShortCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C83 relates to cold start shift time too short. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C84Cold Start Shift Time Too LongCheck soonTransmission Issues30–120 minutes for initial diagnosisP2C84 relates to cold start shift time too long. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CFCA/C Clutch Control CircuitLow priorityTransmission Issues30–120 minutes for initial diagnosisP2CFC relates to a/c clutch control circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CFDA/C Clutch Control Circuit LowLow priorityTransmission Issues30–120 minutes for initial diagnosisP2CFD relates to a/c clutch control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CFEA/C Clutch Control Circuit HighLow priorityTransmission Issues30–120 minutes for initial diagnosisP2CFE relates to a/c clutch control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CFFA/C Clutch Control Circuit Driver Current/Temperature Too HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP2CFF relates to a/c clutch control circuit driver current/temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D8DEngine Disconnect Clutch Mechanical PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP2D8D relates to engine disconnect clutch mechanical performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DA1Gear Shift Control Module B Supply Voltage LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP2DA1 relates to gear shift control module b supply voltage low. Check the fault conditions and vehicle-specific procedure before replacing parts.