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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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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 6241–6264 of 8256

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P2C98Hybrid/EV Battery Disable Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2C98 relates to hybrid/ev battery disable circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C99Throttle Actuator A Control Exceeded Learning LimitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C99 relates to throttle actuator a control exceeded learning limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C9AThrottle Actuator B Control Exceeded Learning LimitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C9A relates to throttle actuator b control exceeded learning limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C9BCold Start Turbocharger/Supercharger Wastegate Actuator A Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C9B relates to cold start turbocharger/supercharger wastegate actuator a range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C9CCold Start Turbocharger/Supercharger Wastegate Actuator B Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C9C relates to cold start turbocharger/supercharger wastegate actuator b range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C9DFuel Pressure Regulator C Exceeded Control Limits - Pressure Too HighCheck soonFuel System30–120 minutes for initial diagnosisP2C9D relates to fuel pressure regulator c exceeded control limits - pressure too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C9EFuel Pressure Regulator C Exceeded Control Limits - Pressure Too LowCheck soonFuel System30–120 minutes for initial diagnosisP2C9E relates to fuel pressure regulator c exceeded control limits - pressure too low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C9FFuel Pressure Regulator D Exceeded Control Limits - Pressure Too HighCheck soonFuel System30–120 minutes for initial diagnosisP2C9F relates to fuel pressure regulator d exceeded control limits - pressure too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CA0Fuel Pressure Regulator D Exceeded Control Limits - Pressure Too LowCheck soonFuel System30–120 minutes for initial diagnosisP2CA0 relates to fuel pressure regulator d exceeded control limits - pressure too low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CA1Charge Air Cooler Coolant Pump Sense Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP2CA1 relates to charge air cooler coolant pump sense circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CA2Charge Air Cooler Coolant Pump Sense Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP2CA2 relates to charge air cooler coolant pump sense circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CA3Charge Air Cooler Coolant Pump Sense Circuit PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP2CA3 relates to charge air cooler coolant pump sense circuit performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CA4Particulate Filter Pressure Sensor Signals Swapped A/BCheck soonEmissions System30–120 minutes for initial diagnosisP2CA4 relates to particulate filter pressure sensor signals swapped a/b. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CA5DC/DC Converter Temperature Sensor E CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2CA5 relates to dc/dc converter temperature sensor e circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CA6DC/DC Converter Temperature Sensor E Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2CA6 relates to dc/dc converter temperature sensor e circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CA7DC/DC Converter Temperature Sensor E Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2CA7 relates to dc/dc converter temperature sensor e circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CA8DC/DC Converter Temperature Sensor E Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2CA8 relates to dc/dc converter temperature sensor e circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CA9DC/DC Converter Temperature Sensor F CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2CA9 relates to dc/dc converter temperature sensor f circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CAADC/DC Converter Temperature Sensor F Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2CAA relates to dc/dc converter temperature sensor f circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CABDC/DC Converter Temperature Sensor F Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2CAB relates to dc/dc converter temperature sensor f circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CACDC/DC Converter Temperature Sensor F Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2CAC relates to dc/dc converter temperature sensor f circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CADCharge Air Cooler Coolant Pump B Control Circuit/OpenCheck soonEngine Problems30–120 minutes for initial diagnosisP2CAD relates to charge air cooler coolant pump b control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CAECharge Air Cooler Coolant Pump B Control Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP2CAE relates to charge air cooler coolant pump b control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2CAFCharge Air Cooler Coolant Pump B Control Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP2CAF relates to charge air cooler coolant pump b control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.