Diagnostic library

Find an OBD2 code

Search the code from your scanner, then narrow the library by system, severity, or code family.

9,253 diagnostic guides

Sort

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.

Sensors & Electronics P · Powertrain Clear all

Quick browse

Choose a vehicle system

Engine1049 Emissions515 Fuel1016 Sensors & Electronics2110 Transmission866 Electrical & Charging1797 Body & Restraints193 Chassis & Brakes479 Network & Communication1228

FiltersSeverity · family

Severity

All severities9253 Low priority305 Check soon8256 Urgent621

Code family

All families9253 P · Powertrain7353 B · Body193 C · Chassis479 U · Network1228

Vehicle coverage

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

Diagnostic codes

Showing 433–456 of 2110

Most searched first

P056FCold Start Turbocharger/Supercharger Boost Control B PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP056F relates to cold start turbocharger/supercharger boost control b performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P0570Cruise Control Accel Signal MalfunctionLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0570 indicates a fault related to cruise control accel signal malfunction. 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.P0574Cruise Control System - Vehicle Speed Too HighLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0574 relates to cruise control system - vehicle speed too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0575Cruise Control Input CircuitLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0575 relates to cruise control input circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0576Cruise Control Input Circuit LowLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0576 relates to cruise control input circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P0577Cruise Control Input Circuit HighLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0577 relates to cruise control input circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0578Cruise Control Multi-Function Input A Circuit StuckLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0578 relates to cruise control multi-function input a circuit stuck. Check the fault conditions and vehicle-specific procedure before replacing parts.P0579Cruise Control Multi-Function Input A Circuit Range/PerformanceLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0579 relates to cruise control multi-function input a circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P057ABrake Pedal Position Sensor A Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP057A relates to brake pedal position sensor a circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P057BBrake Pedal Position Sensor A Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP057B relates to brake pedal position sensor a circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P057CBrake Pedal Position Sensor A Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP057C relates to brake pedal position sensor a circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P057DBrake Pedal Position Sensor A Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP057D relates to brake pedal position sensor a circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P057EBrake Pedal Position Sensor A Circuit Intermittent/ErraticCheck soonSensors & Electronics30–120 minutes for initial diagnosisP057E relates to brake pedal position sensor a circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P0580Cruise Control Multi-Function Input A Circuit LowLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0580 relates to cruise control multi-function input a circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P0581Cruise Control Multi-Function Input A Circuit HighLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0581 relates to cruise control multi-function input a circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0582Cruise Control Vacuum Control Circuit/OpenLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0582 relates to cruise control vacuum control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P0583Cruise Control Vacuum Control Circuit LowLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0583 relates to cruise control vacuum control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P0584Cruise Control Vacuum Control Circuit HighLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0584 relates to cruise control vacuum control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0585Cruise Control Multi-Function Input A/B CorrelationLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0585 relates to cruise control multi-function input a/b correlation. Check the fault conditions and vehicle-specific procedure before replacing parts.P0586Cruise Control Vent Control Circuit/OpenLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0586 relates to cruise control vent control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P0587Cruise Control Vent Control Circuit LowLow prioritySensors & Electronics30–120 minutes for initial diagnosisP0587 relates to cruise control vent control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.