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

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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

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 9217–9240 of 9253

Most searched first

U0107Lost Communication With Throttle Actuator Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0107 means Lost Communication With Throttle Actuator Control Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0108Lost Communication With Alternative Fuel Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0108 means Lost Communication With Alternative Fuel Control Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0110Lost Communication With Drive Motor Control Module ACheck soonNetwork & Communication45–120 minutes for initial diagnosisU0110 means Lost Communication With Drive Motor Control Module A. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0112Lost Communication With Battery Energy Control Module BCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0112 means Lost Communication With Battery Energy Control Module B. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0113Lost Communication With Emissions Critical Control InformationCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0113 means Lost Communication With Emissions Critical Control Information. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0114Lost Communication With Four-Wheel Drive Clutch Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0114 means Lost Communication With Four-Wheel Drive Clutch Control Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0115Lost Communication With ECM/PCM BCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0115 means Lost Communication With ECM/PCM B. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0116Lost Communication With Coolant Temperature Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0116 means Lost Communication With Coolant Temperature Control Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0117Lost Communication With PTO Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0117 means Lost Communication With PTO Control Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0118Lost Communication With Fuel Additive Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0118 means Lost Communication With Fuel Additive Control Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0119Lost Communication With Fuel Cell Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0119 means Lost Communication With Fuel Cell Control Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0120Lost Communication With Starter/Generator Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0120 means Lost Communication With Starter/Generator Control Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0122Lost Communication With Vehicle Dynamics Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0122 means Lost Communication With Vehicle Dynamics Control Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0123Lost Communication With Yaw Rate Sensor ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0123 means Lost Communication With Yaw Rate Sensor Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0124Lost Communication With Lateral Acceleration Sensor ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0124 means Lost Communication With Lateral Acceleration Sensor Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0125Lost Communication With Multi-Axis Acceleration Sensor ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0125 means Lost Communication With Multi-Axis Acceleration Sensor Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0126Lost Communication With Steering Angle Sensor ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0126 means Lost Communication With Steering Angle Sensor Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0128Lost Communication With Park Brake Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0128 means Lost Communication With Park Brake Control Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0129Lost Communication With Brake System Control ModuleUrgentNetwork & Communication1–3 hours for initial diagnosisU0129 means Lost Communication With Brake System Control Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0130Lost Communication With Steering Effort Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0130 means Lost Communication With Steering Effort Control Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0132Lost Communication With Ride Level Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0132 means Lost Communication With Ride Level Control Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0133Lost Communication With Active Roll Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0133 means Lost Communication With Active Roll Control Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0134Lost Communication With Rear Power Steering Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0134 means Lost Communication With Rear Power Steering Control Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.U0135Lost Communication With Front Differential Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0135 means Lost Communication With Front Differential Control Module. Review likely symptoms, causes, safety considerations, and a sensible diagnostic order.