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9,253 diagnostic guides

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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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Severity

All severities9253 Low priority305 Check soon8256 Urgent621

Code family

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 313–336 of 9253

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C0509Right Front Wheel Speed Sensor A Circuit HighCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0509 concerns right front wheel speed sensor a circuit high. Learn what this fault indicates and where to begin diagnosis.C050ARight Front Wheel Speed Sensor A Intermittent/ErraticCheck soonChassis & Brakes45–120 minutes for initial diagnosisC050A concerns right front wheel speed sensor a intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.C050BRight Front Wheel Speed Sensor A CorrelationCheck soonChassis & Brakes45–120 minutes for initial diagnosisC050B concerns right front wheel speed sensor a correlation. Learn what this fault indicates and where to begin diagnosis.C050CLeft Rear Wheel Speed Sensor A Circuit/OpenCheck soonChassis & Brakes45–120 minutes for initial diagnosisC050C concerns left rear wheel speed sensor a circuit/open. Learn what this fault indicates and where to begin diagnosis.C050DLeft Rear Wheel Speed Sensor A Range/PerformanceCheck soonChassis & Brakes45–120 minutes for initial diagnosisC050D concerns left rear wheel speed sensor a range/performance. Learn what this fault indicates and where to begin diagnosis.C050ELeft Rear Wheel Speed Sensor A Circuit LowCheck soonChassis & Brakes45–120 minutes for initial diagnosisC050E concerns left rear wheel speed sensor a circuit low. Learn what this fault indicates and where to begin diagnosis.C050FLeft Rear Wheel Speed Sensor A Circuit HighCheck soonChassis & Brakes45–120 minutes for initial diagnosisC050F concerns left rear wheel speed sensor a circuit high. Learn what this fault indicates and where to begin diagnosis.C0510Left Rear Wheel Speed Sensor A Intermittent/ErraticCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0510 concerns left rear wheel speed sensor a intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.C0511Left Rear Wheel Speed Sensor A CorrelationCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0511 concerns left rear wheel speed sensor a correlation. Learn what this fault indicates and where to begin diagnosis.C0512Right Rear Wheel Speed Sensor A Circuit/OpenCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0512 concerns right rear wheel speed sensor a circuit/open. Learn what this fault indicates and where to begin diagnosis.C0513Right Rear Wheel Speed Sensor A Range/PerformanceCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0513 concerns right rear wheel speed sensor a range/performance. Learn what this fault indicates and where to begin diagnosis.C0514Right Rear Wheel Speed Sensor A Circuit LowCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0514 concerns right rear wheel speed sensor a circuit low. Learn what this fault indicates and where to begin diagnosis.C0515Right Rear Wheel Speed Sensor A Circuit HighCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0515 concerns right rear wheel speed sensor a circuit high. Learn what this fault indicates and where to begin diagnosis.C0516Right Rear Wheel Speed Sensor A Intermittent/ErraticCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0516 concerns right rear wheel speed sensor a intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.C0517Right Rear Wheel Speed Sensor A CorrelationCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0517 concerns right rear wheel speed sensor a correlation. Learn what this fault indicates and where to begin diagnosis.C0518Left Front Wheel Speed Sensor - MechanicalCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0518 concerns left front wheel speed sensor - mechanical. Learn what this fault indicates and where to begin diagnosis.C0519Right Front Wheel Speed Sensor - MechanicalCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0519 concerns right front wheel speed sensor - mechanical. Learn what this fault indicates and where to begin diagnosis.C051ALeft Rear Wheel Speed Sensor - MechanicalCheck soonChassis & Brakes45–120 minutes for initial diagnosisC051A concerns left rear wheel speed sensor - mechanical. Learn what this fault indicates and where to begin diagnosis.C051BRight Rear Wheel Speed Sensor - MechanicalCheck soonChassis & Brakes45–120 minutes for initial diagnosisC051B concerns right rear wheel speed sensor - mechanical. Learn what this fault indicates and where to begin diagnosis.C051CMulti-axis Acceleration Sensor Module A Range/PerformanceCheck soonChassis & Brakes45–120 minutes for initial diagnosisC051C concerns multi-axis acceleration sensor module a range/performance. Learn what this fault indicates and where to begin diagnosis.C051DMulti-axis Acceleration Sensor Module A Missing CalibrationCheck soonChassis & Brakes45–120 minutes for initial diagnosisC051D concerns multi-axis acceleration sensor module a missing calibration. Learn what this fault indicates and where to begin diagnosis.C051EMulti-axis Acceleration Sensor Module A Intermittent/ErraticCheck soonChassis & Brakes45–120 minutes for initial diagnosisC051E concerns multi-axis acceleration sensor module a intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.C051FMulti-axis Acceleration Sensor Module A CorrelationCheck soonChassis & Brakes45–120 minutes for initial diagnosisC051F concerns multi-axis acceleration sensor module a correlation. Learn what this fault indicates and where to begin diagnosis.C0520Multi-axis Acceleration Sensor Module ACheck soonChassis & Brakes45–120 minutes for initial diagnosisC0520 concerns multi-axis acceleration sensor module a. Learn what this fault indicates and where to begin diagnosis.