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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

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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 7969–7992 of 8256

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U3509Control Module Input Power C Circuit LowCheck soonNetwork & Communication45–120 minutes for initial diagnosisU3509 concerns control module input power c circuit low. Learn what this fault indicates and where to begin diagnosis.U350AControl Module Input Power C Circuit HighCheck soonNetwork & Communication45–120 minutes for initial diagnosisU350A concerns control module input power c circuit high. Learn what this fault indicates and where to begin diagnosis.U350BControl Module Input Power C Circuit Intermittent/ErraticCheck soonNetwork & Communication45–120 minutes for initial diagnosisU350B concerns control module input power c circuit intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.U350CControl Module Cooling Fan Circuit/OpenCheck soonNetwork & Communication45–120 minutes for initial diagnosisU350C concerns control module cooling fan circuit/open. Learn what this fault indicates and where to begin diagnosis.U350DControl Module Cooling Fan Circuit LowCheck soonNetwork & Communication45–120 minutes for initial diagnosisU350D concerns control module cooling fan circuit low. Learn what this fault indicates and where to begin diagnosis.U350EControl Module Cooling Fan Circuit HighCheck soonNetwork & Communication45–120 minutes for initial diagnosisU350E concerns control module cooling fan circuit high. Learn what this fault indicates and where to begin diagnosis.U350FControl Module Cooling Fan Circuit Range/PerformanceCheck soonNetwork & Communication45–120 minutes for initial diagnosisU350F concerns control module cooling fan circuit range/performance. Learn what this fault indicates and where to begin diagnosis.U3510Control Module Missing CalibrationCheck soonNetwork & Communication45–120 minutes for initial diagnosisU3510 concerns control module missing calibration. Learn what this fault indicates and where to begin diagnosis.U3511High Voltage System Interlock Circuit BCheck soonNetwork & Communication45–120 minutes for initial diagnosisU3511 concerns high voltage system interlock circuit b. Learn what this fault indicates and where to begin diagnosis.U3512High Voltage System Interlock Circuit B PerformanceCheck soonNetwork & Communication45–120 minutes for initial diagnosisU3512 concerns high voltage system interlock circuit b performance. Learn what this fault indicates and where to begin diagnosis.U3513High Voltage System Interlock Circuit B LowCheck soonNetwork & Communication45–120 minutes for initial diagnosisU3513 concerns high voltage system interlock circuit b low. Learn what this fault indicates and where to begin diagnosis.U3514High Voltage System Interlock Circuit B HighCheck soonNetwork & Communication45–120 minutes for initial diagnosisU3514 concerns high voltage system interlock circuit b high. Learn what this fault indicates and where to begin diagnosis.U3515High Voltage System Interlock Circuit CCheck soonNetwork & Communication45–120 minutes for initial diagnosisU3515 concerns high voltage system interlock circuit c. Learn what this fault indicates and where to begin diagnosis.U3516High Voltage System Interlock Circuit C PerformanceCheck soonNetwork & Communication45–120 minutes for initial diagnosisU3516 concerns high voltage system interlock circuit c performance. Learn what this fault indicates and where to begin diagnosis.U3517High Voltage System Interlock Circuit C LowCheck soonNetwork & Communication45–120 minutes for initial diagnosisU3517 concerns high voltage system interlock circuit c low. Learn what this fault indicates and where to begin diagnosis.U3518High Voltage System Interlock Circuit C HighCheck soonNetwork & Communication45–120 minutes for initial diagnosisU3518 concerns high voltage system interlock circuit c high. Learn what this fault indicates and where to begin diagnosis.U3519High Voltage System Interlock Circuit DCheck soonNetwork & Communication45–120 minutes for initial diagnosisU3519 concerns high voltage system interlock circuit d. Learn what this fault indicates and where to begin diagnosis.U351AHigh Voltage System Interlock Circuit D PerformanceCheck soonNetwork & Communication45–120 minutes for initial diagnosisU351A concerns high voltage system interlock circuit d performance. Learn what this fault indicates and where to begin diagnosis.U351BHigh Voltage System Interlock Circuit D LowCheck soonNetwork & Communication45–120 minutes for initial diagnosisU351B concerns high voltage system interlock circuit d low. Learn what this fault indicates and where to begin diagnosis.U351CHigh Voltage System Interlock Circuit D HighCheck soonNetwork & Communication45–120 minutes for initial diagnosisU351C concerns high voltage system interlock circuit d high. Learn what this fault indicates and where to begin diagnosis.U351DHigh Voltage System Interlock Circuit ECheck soonNetwork & Communication45–120 minutes for initial diagnosisU351D concerns high voltage system interlock circuit e. Learn what this fault indicates and where to begin diagnosis.U351EHigh Voltage System Interlock Circuit E PerformanceCheck soonNetwork & Communication45–120 minutes for initial diagnosisU351E concerns high voltage system interlock circuit e performance. Learn what this fault indicates and where to begin diagnosis.U351FHigh Voltage System Interlock Circuit E LowCheck soonNetwork & Communication45–120 minutes for initial diagnosisU351F concerns high voltage system interlock circuit e low. Learn what this fault indicates and where to begin diagnosis.U3520High Voltage System Interlock Circuit E HighCheck soonNetwork & Communication45–120 minutes for initial diagnosisU3520 concerns high voltage system interlock circuit e high. Learn what this fault indicates and where to begin diagnosis.