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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 1–24 of 26

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P0049Turbocharger/Supercharger A Turbine OverspeedUrgentSensors & Electronics30–120 minutes for initial diagnosisP0049 relates to turbocharger/supercharger a turbine overspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P00C5Turbocharger/Supercharger B Turbine OverspeedUrgentSensors & Electronics30–120 minutes for initial diagnosisP00C5 relates to turbocharger/supercharger b turbine overspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P0297Vehicle Overspeed ConditionUrgentSensors & Electronics30–120 minutes for initial diagnosisP0297 relates to vehicle overspeed condition. Check the fault conditions and vehicle-specific procedure before replacing parts.P0298Engine Oil Over TemperatureUrgentSensors & Electronics30–120 minutes for initial diagnosisP0298 relates to engine oil over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P0550Power Steering Pressure Sensor Circuit MalfunctionUrgentSensors & Electronics30–120 minutes for initial diagnosisP0550 indicates a fault related to power steering pressure sensor circuit malfunction. Learn the likely causes and a practical diagnostic order before replacing parts.P0551Power Steering Pressure Sensor Circuit Range/PerformanceUrgentSensors & Electronics30–120 minutes for initial diagnosisP0551 indicates a fault related to power steering pressure sensor circuit range/performance. Learn the likely causes and a practical diagnostic order before replacing parts.P0552Power Steering Pressure Sensor Circuit Low InputUrgentSensors & Electronics30–120 minutes for initial diagnosisP0552 indicates a fault related to power steering pressure sensor circuit low input. Learn the likely causes and a practical diagnostic order before replacing parts.P0553Power Steering Pressure Sensor Circuit High InputUrgentSensors & Electronics30–120 minutes for initial diagnosisP0553 indicates a fault related to power steering pressure sensor circuit high input. Learn the likely causes and a practical diagnostic order before replacing parts.P0554Power Steering Pressure Sensor Circuit IntermittentUrgentSensors & Electronics30–120 minutes for initial diagnosisP0554 indicates a fault related to power steering pressure sensor circuit intermittent. Learn the likely causes and a practical diagnostic order before replacing parts.P0571Brake Switch A Circuit MalfunctionUrgentSensors & Electronics30–120 minutes for initial diagnosisP0571 indicates a fault related to brake switch a circuit malfunction. Learn the likely causes and a practical diagnostic order before replacing parts.P0572Brake Switch A Circuit LowUrgentSensors & Electronics30–120 minutes for initial diagnosisP0572 indicates a fault related to brake switch a circuit low. Learn the likely causes and a practical diagnostic order before replacing parts.P0573Brake Switch A Circuit HighUrgentSensors & Electronics30–120 minutes for initial diagnosisP0573 indicates a fault related to brake switch a circuit high. Learn the likely causes and a practical diagnostic order before replacing parts.P05C0Active Grille Air Shutter Module A Over TemperatureUrgentSensors & Electronics30–120 minutes for initial diagnosisP05C0 relates to active grille air shutter module a over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P05C1Active Grille Air Shutter Module B Over TemperatureUrgentSensors & Electronics30–120 minutes for initial diagnosisP05C1 relates to active grille air shutter module b over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P0703Brake Switch B CircuitUrgentSensors & Electronics30–120 minutes for initial diagnosisP0703 relates to brake switch b circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0719Brake Switch B Circuit LowUrgentSensors & Electronics30–120 minutes for initial diagnosisP0719 relates to brake switch b circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P094DHydraulic Pump Over TemperatureUrgentSensors & Electronics30–120 minutes for initial diagnosisP094D relates to hydraulic pump over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P21B4NOx Adsorber - Over Temperature Bank 1UrgentSensors & Electronics30–120 minutes for initial diagnosisP21B4 relates to nox adsorber - over temperature bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P21B5NOx Adsorber - Over Temperature Bank 2UrgentSensors & Electronics30–120 minutes for initial diagnosisP21B5 relates to nox adsorber - over temperature bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P263EGlow Plug Control Module 1 Over TemperatureUrgentSensors & Electronics30–120 minutes for initial diagnosisP263E relates to glow plug control module 1 over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P263FGlow Plug Control Module 2 Over TemperatureUrgentSensors & Electronics30–120 minutes for initial diagnosisP263F relates to glow plug control module 2 over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C75Active Grille Air Shutter Module C Over TemperatureUrgentSensors & Electronics30–120 minutes for initial diagnosisP2C75 relates to active grille air shutter module c over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C78Active Grille Air Shutter Module D Over TemperatureUrgentSensors & Electronics30–120 minutes for initial diagnosisP2C78 relates to active grille air shutter module d over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2C80AIR System Pump Overspeed Bank 1UrgentSensors & Electronics30–120 minutes for initial diagnosisP2C80 relates to air system pump overspeed bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.