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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.

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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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Diagnostic codes

Showing 5785–5808 of 6682

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P2C1ECold Start Fuel Pressure Regulator A PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2C1E relates to cold start fuel pressure regulator a performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C1FCold Start Fuel Pressure Regulator A Exceeded Control Limits - Pressure Too LowCheck soonFuel System30–120 minutes for initial diagnosisP2C1F relates to cold start fuel pressure regulator a exceeded control limits - pressure too low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C20Cold Start Fuel Pressure Regulator A Exceeded Control Limits - Pressure Too HighCheck soonFuel System30–120 minutes for initial diagnosisP2C20 relates to cold start fuel pressure regulator a exceeded control limits - pressure too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C21Engine Oil Temperature Sensor A/B CorrelationCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C21 relates to engine oil temperature sensor a/b correlation. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C22Exhaust Heat Exchanger Exhaust Bypass Valve A Position Sensor CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C22 relates to exhaust heat exchanger exhaust bypass valve a position sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C23Exhaust Heat Exchanger Exhaust Bypass Valve A Position Sensor PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C23 relates to exhaust heat exchanger exhaust bypass valve a position sensor performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C24Exhaust Heat Exchanger Exhaust Bypass Valve A Position Sensor Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C24 relates to exhaust heat exchanger exhaust bypass valve a position sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C25Exhaust Heat Exchanger Exhaust Bypass Valve A Position Sensor Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C25 relates to exhaust heat exchanger exhaust bypass valve a position sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C26Fuel Injector Group B Supply Sense CircuitCheck soonFuel System30–120 minutes for initial diagnosisP2C26 relates to fuel injector group b supply sense circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C27Fuel Injector Group B Supply Sense Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP2C27 relates to fuel injector group b supply sense circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C28Fuel Injector Group B Supply Sense Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP2C28 relates to fuel injector group b supply sense circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C29Turbocharger/Supercharger Bypass Valve B StuckCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C29 relates to turbocharger/supercharger bypass valve b stuck. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C2ATurbocharger/Supercharger Bypass Valve B Position Sensor Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C2A relates to turbocharger/supercharger bypass valve b position sensor circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C2BTurbocharger/Supercharger Bypass Valve B Position Sensor Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C2B relates to turbocharger/supercharger bypass valve b position sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C2CTurbocharger/Supercharger Bypass Valve B Position Sensor Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C2C relates to turbocharger/supercharger bypass valve b position sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C2DTurbocharger/Supercharger Bypass Valve B Position Exceeded Learning LimitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C2D relates to turbocharger/supercharger bypass valve b position exceeded learning limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C2ETurbocharger/Supercharger Bypass Valve B Supply Voltage LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2C2E relates to turbocharger/supercharger bypass valve b supply voltage low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C2FTurbocharger/Supercharger Bypass Valve B Driver Current/Temperature Too HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C2F relates to turbocharger/supercharger bypass valve b driver current/temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C30Ignition Coil Primary Circuit Fuse ACheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C30 relates to ignition coil primary circuit fuse a. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C31Ignition Coil Primary Circuit Fuse BCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C31 relates to ignition coil primary circuit fuse b. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C32Crankcase Pressure Sensor B CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C32 relates to crankcase pressure sensor b circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C33Crankcase Pressure Sensor B Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C33 relates to crankcase pressure sensor b circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C34Crankcase Pressure Sensor B Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C34 relates to crankcase pressure sensor b circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C35Crankcase Pressure Sensor B Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C35 relates to crankcase pressure sensor b circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.