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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 289–312 of 9253

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C009A4WD/AWD Rear Differential Unit Actuator A Position Sensor BCheck soonChassis & Brakes45–120 minutes for initial diagnosisC009A concerns 4wd/awd rear differential unit actuator a position sensor b. Learn what this fault indicates and where to begin diagnosis.C009B4WD/AWD Rear Differential Unit Actuator A Position Sensor CCheck soonChassis & Brakes45–120 minutes for initial diagnosisC009B concerns 4wd/awd rear differential unit actuator a position sensor c. Learn what this fault indicates and where to begin diagnosis.C009C4WD/AWD Rear Differential Unit Actuator A Position Sensor CorrelationCheck soonChassis & Brakes45–120 minutes for initial diagnosisC009C concerns 4wd/awd rear differential unit actuator a position sensor correlation. Learn what this fault indicates and where to begin diagnosis.C009D4WD/AWD Rear Differential Unit Actuator B Position Sensor ACheck soonChassis & Brakes45–120 minutes for initial diagnosisC009D concerns 4wd/awd rear differential unit actuator b position sensor a. Learn what this fault indicates and where to begin diagnosis.C009E4WD/AWD Rear Differential Unit Actuator B Position Sensor BCheck soonChassis & Brakes45–120 minutes for initial diagnosisC009E concerns 4wd/awd rear differential unit actuator b position sensor b. Learn what this fault indicates and where to begin diagnosis.C009F4WD/AWD Rear Differential Unit Actuator B Position Sensor CCheck soonChassis & Brakes45–120 minutes for initial diagnosisC009F concerns 4wd/awd rear differential unit actuator b position sensor c. Learn what this fault indicates and where to begin diagnosis.C00A04WD/AWD Rear Differential Unit Actuator B Position Sensor CorrelationCheck soonChassis & Brakes45–120 minutes for initial diagnosisC00A0 concerns 4wd/awd rear differential unit actuator b position sensor correlation. Learn what this fault indicates and where to begin diagnosis.C00A1Driveline Control ModuleCheck soonChassis & Brakes45–120 minutes for initial diagnosisC00A1 concerns driveline control module. Learn what this fault indicates and where to begin diagnosis.C00A2Driveline Control Module Power Transfer Unit Control Circuit DriverCheck soonChassis & Brakes45–120 minutes for initial diagnosisC00A2 concerns driveline control module power transfer unit control circuit driver. Learn what this fault indicates and where to begin diagnosis.C00A3Driveline Control Module Rear Differential Unit A Control Circuit DriverCheck soonChassis & Brakes45–120 minutes for initial diagnosisC00A3 concerns driveline control module rear differential unit a control circuit driver. Learn what this fault indicates and where to begin diagnosis.C00A4Driveline Control Module Rear Differential Unit B Control Circuit DriverCheck soonChassis & Brakes45–120 minutes for initial diagnosisC00A4 concerns driveline control module rear differential unit b control circuit driver. Learn what this fault indicates and where to begin diagnosis.C00A5Driveline Control Module Transfer Case Unit Control Circuit DriverCheck soonChassis & Brakes45–120 minutes for initial diagnosisC00A5 concerns driveline control module transfer case unit control circuit driver. Learn what this fault indicates and where to begin diagnosis.C00A64WD/AWD Transfer Case Unit ActuatorCheck soonChassis & Brakes45–120 minutes for initial diagnosisC00A6 concerns 4wd/awd transfer case unit actuator. Learn what this fault indicates and where to begin diagnosis.C00A74WD/AWD Transfer Case Unit Actuator Position Sensor ACheck soonChassis & Brakes45–120 minutes for initial diagnosisC00A7 concerns 4wd/awd transfer case unit actuator position sensor a. Learn what this fault indicates and where to begin diagnosis.C00A84WD/AWD Transfer Case Unit Actuator Position Sensor BCheck soonChassis & Brakes45–120 minutes for initial diagnosisC00A8 concerns 4wd/awd transfer case unit actuator position sensor b. Learn what this fault indicates and where to begin diagnosis.C0500Left Front Wheel Speed Sensor A Circuit/OpenCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0500 concerns left front wheel speed sensor a circuit/open. Learn what this fault indicates and where to begin diagnosis.C0501Left Front Wheel Speed Sensor A Range/PerformanceCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0501 concerns left front wheel speed sensor a range/performance. Learn what this fault indicates and where to begin diagnosis.C0502Left Front Wheel Speed Sensor A Circuit LowCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0502 concerns left front wheel speed sensor a circuit low. Learn what this fault indicates and where to begin diagnosis.C0503Left Front Wheel Speed Sensor A Circuit HighCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0503 concerns left front wheel speed sensor a circuit high. Learn what this fault indicates and where to begin diagnosis.C0504Left Front Wheel Speed Sensor A Intermittent/ErraticCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0504 concerns left front wheel speed sensor a intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.C0505Left Front Wheel Speed Sensor A CorrelationCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0505 concerns left front wheel speed sensor a correlation. Learn what this fault indicates and where to begin diagnosis.C0506Right Front Wheel Speed Sensor A Circuit/OpenCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0506 concerns right front wheel speed sensor a circuit/open. Learn what this fault indicates and where to begin diagnosis.C0507Right Front Wheel Speed Sensor A Range/PerformanceCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0507 concerns right front wheel speed sensor a range/performance. Learn what this fault indicates and where to begin diagnosis.C0508Right Front Wheel Speed Sensor A Circuit LowCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0508 concerns right front wheel speed sensor a circuit low. Learn what this fault indicates and where to begin diagnosis.