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.

Chassis & Brakes C · Chassis 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 385–408 of 479

Most searched first

C061DVariable Effort Steering Actuator Control Circuit LowUrgentChassis & Brakes45–120 minutes for initial diagnosisC061D concerns variable effort steering actuator control circuit low. Learn what this fault indicates and where to begin diagnosis.C061EVariable Effort Steering Actuator Control Circuit HighUrgentChassis & Brakes45–120 minutes for initial diagnosisC061E concerns variable effort steering actuator control circuit high. Learn what this fault indicates and where to begin diagnosis.C061FVariable Effort Steering Actuator Control Circuit PerformanceUrgentChassis & Brakes45–120 minutes for initial diagnosisC061F concerns variable effort steering actuator control circuit performance. Learn what this fault indicates and where to begin diagnosis.C0620Variable Effort Steering Lock/Safety Actuator Control Circuit/OpenUrgentChassis & Brakes45–120 minutes for initial diagnosisC0620 concerns variable effort steering lock/safety actuator control circuit/open. Learn what this fault indicates and where to begin diagnosis.C0621Variable Effort Steering Lock/Safety Actuator Control Circuit LowUrgentChassis & Brakes45–120 minutes for initial diagnosisC0621 concerns variable effort steering lock/safety actuator control circuit low. Learn what this fault indicates and where to begin diagnosis.C0622Variable Effort Steering Lock/Safety Actuator Control Circuit HighUrgentChassis & Brakes45–120 minutes for initial diagnosisC0622 concerns variable effort steering lock/safety actuator control circuit high. Learn what this fault indicates and where to begin diagnosis.C0623Variable Effort Steering Lock/Safety Actuator Control Circuit PerformanceUrgentChassis & Brakes45–120 minutes for initial diagnosisC0623 concerns variable effort steering lock/safety actuator control circuit performance. Learn what this fault indicates and where to begin diagnosis.C0624Variable Effort Steering Sensor CircuitUrgentChassis & Brakes45–120 minutes for initial diagnosisC0624 concerns variable effort steering sensor circuit. Learn what this fault indicates and where to begin diagnosis.C0625Variable Effort Steering Sensor Circuit Range/PerformanceUrgentChassis & Brakes45–120 minutes for initial diagnosisC0625 concerns variable effort steering sensor circuit range/performance. Learn what this fault indicates and where to begin diagnosis.C0626Variable Effort Steering Sensor Circuit LowUrgentChassis & Brakes45–120 minutes for initial diagnosisC0626 concerns variable effort steering sensor circuit low. Learn what this fault indicates and where to begin diagnosis.C0627Variable Effort Steering Sensor Circuit HighUrgentChassis & Brakes45–120 minutes for initial diagnosisC0627 concerns variable effort steering sensor circuit high. Learn what this fault indicates and where to begin diagnosis.C0628Variable Effort Steering Module PerformanceUrgentChassis & Brakes45–120 minutes for initial diagnosisC0628 concerns variable effort steering module performance. Learn what this fault indicates and where to begin diagnosis.C0629Variable Effort Steering Control Module Incorrect Component InstalledUrgentChassis & Brakes45–120 minutes for initial diagnosisC0629 concerns variable effort steering control module incorrect component installed. Learn what this fault indicates and where to begin diagnosis.C062AVariable Effort Steering Module Temperature Too HighUrgentChassis & Brakes45–120 minutes for initial diagnosisC062A concerns variable effort steering module temperature too high. Learn what this fault indicates and where to begin diagnosis.C062BVariable Effort Steering Module Temperature Too LowUrgentChassis & Brakes45–120 minutes for initial diagnosisC062B concerns variable effort steering module temperature too low. Learn what this fault indicates and where to begin diagnosis.C062CBrake Booster Motor “B” PerformanceUrgentChassis & Brakes45–120 minutes for initial diagnosisC062C concerns brake booster motor “b” performance. Learn what this fault indicates and where to begin diagnosis.C062DABS Valves Range/PerformanceCheck soonChassis & Brakes45–120 minutes for initial diagnosisC062D concerns abs valves range/performance. Learn what this fault indicates and where to begin diagnosis.C062EActive Air Dam Supply Voltage Circuit LowCheck soonChassis & Brakes45–120 minutes for initial diagnosisC062E concerns active air dam supply voltage circuit low. Learn what this fault indicates and where to begin diagnosis.C062FActive Air Dam Supply Voltage Circuit HighCheck soonChassis & Brakes45–120 minutes for initial diagnosisC062F concerns active air dam supply voltage circuit high. Learn what this fault indicates and where to begin diagnosis.C0630Active Air Dam StuckCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0630 concerns active air dam stuck. Learn what this fault indicates and where to begin diagnosis.C0631Front Axle Disconnect ActuatorCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0631 concerns front axle disconnect actuator. Learn what this fault indicates and where to begin diagnosis.C0632Front Axle Disconnect Control CircuitCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0632 concerns front axle disconnect control circuit. Learn what this fault indicates and where to begin diagnosis.C0633Front Half Shaft Speed SensorCheck soonChassis & Brakes45–120 minutes for initial diagnosisC0633 concerns front half shaft speed sensor. Learn what this fault indicates and where to begin diagnosis.C0634Brake Pressure Sensor A/B CorrelationUrgentChassis & Brakes45–120 minutes for initial diagnosisC0634 concerns brake pressure sensor a/b correlation. Learn what this fault indicates and where to begin diagnosis.