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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 1201–1224 of 7353

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P054CCold Start B Camshaft Position Timing Over-Advanced Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP054C relates to cold start b camshaft position timing over-advanced bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P054DCold Start B Camshaft Position Timing Over-Retarded Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP054D relates to cold start b camshaft position timing over-retarded bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P054EIdle Control System - Fuel Quantity Lower Than ExpectedCheck soonFuel System30–120 minutes for initial diagnosisP054E relates to idle control system - fuel quantity lower than expected. Check the fault conditions and vehicle-specific procedure before replacing parts.P054FIdle Control System - Fuel Quantity Higher Than ExpectedCheck soonFuel System30–120 minutes for initial diagnosisP054F relates to idle control system - fuel quantity higher than expected. 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.P0555Brake Booster Pressure Sensor CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0555 relates to brake booster pressure sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0556Brake Booster Pressure Sensor Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0556 relates to brake booster pressure sensor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P0557Brake Booster Pressure Sensor Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0557 relates to brake booster pressure sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P0558Brake Booster Pressure Sensor Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0558 relates to brake booster pressure sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0559Brake Booster Pressure Sensor Circuit IntermittentCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0559 relates to brake booster pressure sensor circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P055AEngine Oil Pressure Sensor/Switch B CircuitCheck soonEngine Problems30–120 minutes for initial diagnosisP055A relates to engine oil pressure sensor/switch b circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P055BEngine Oil Pressure Sensor/Switch B Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP055B relates to engine oil pressure sensor/switch b range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P055CEngine Oil Pressure Sensor/Switch B LowCheck soonEngine Problems30–120 minutes for initial diagnosisP055C relates to engine oil pressure sensor/switch b low. Check the fault conditions and vehicle-specific procedure before replacing parts.P055DEngine Oil Pressure Sensor/Switch B HighCheck soonEngine Problems30–120 minutes for initial diagnosisP055D relates to engine oil pressure sensor/switch b high. Check the fault conditions and vehicle-specific procedure before replacing parts.P055EOxygen Sensor Control Module System VoltageCheck soonEmissions System30–120 minutes for initial diagnosisP055E relates to oxygen sensor control module system voltage. Check the fault conditions and vehicle-specific procedure before replacing parts.P055FEngine Oil Pressure Out of RangeCheck soonEngine Problems30–120 minutes for initial diagnosisP055F relates to engine oil pressure out of range. Check the fault conditions and vehicle-specific procedure before replacing parts.P0560System Voltage MalfunctionElectrical & Charging SystemFix P0560 system voltage malfunction code - battery, alternator, and wiring causes explained.P0561System Voltage UnstableCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP0561 indicates a fault related to system voltage unstable. Learn the likely causes and a practical diagnostic order before replacing parts.P0562System Voltage LowElectrical & Charging SystemFix P0562 system voltage low code. Learn what causes low charging voltage and how to test the battery and alternator.P0563System Voltage HighUrgentElectrical & Charging System1–3 hours for initial diagnosisP0563 means System Voltage High. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.