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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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These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.

Diagnostic codes

Showing 6361–6384 of 7353

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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.P2C36Crankcase Pressure Sensor B Circuit Intermittent/ErraticCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2C36 relates to crankcase pressure sensor b circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C37Cold Start Engine Coolant Pump PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP2C37 relates to cold start engine coolant pump performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C38Cylinder Head Temperature Sensor B CircuitCheck soonEngine Problems30–120 minutes for initial diagnosisP2C38 relates to cylinder head temperature sensor b circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C39Cylinder Head Temperature Sensor B Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP2C39 relates to cylinder head temperature sensor b range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C3ACylinder Head Temperature Sensor B Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP2C3A relates to cylinder head temperature sensor b circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C3BCylinder Head Temperature Sensor B Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP2C3B relates to cylinder head temperature sensor b circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C3CCylinder Head Temperature Sensor B Circuit Intermittent/ErraticCheck soonEngine Problems30–120 minutes for initial diagnosisP2C3C relates to cylinder head temperature sensor b circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C3DCylinder Head Temperature Sensor A/B CorrelationCheck soonEngine Problems30–120 minutes for initial diagnosisP2C3D relates to cylinder head temperature sensor a/b correlation. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C3EFan 4 Control CircuitCheck soonEngine Problems30–120 minutes for initial diagnosisP2C3E relates to fan 4 control circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C3FFan 4 Control Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP2C3F relates to fan 4 control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C40Fan 4 Control Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP2C40 relates to fan 4 control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C41Fan 3 Performance/Stuck OffCheck soonEngine Problems30–120 minutes for initial diagnosisP2C41 relates to fan 3 performance/stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C42Fan 4 Performance/Stuck OffCheck soonEngine Problems30–120 minutes for initial diagnosisP2C42 relates to fan 4 performance/stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.