Diagnostic library

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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

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 6961–6984 of 8256

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U0064Vehicle Communication Bus ECheck soonNetwork & Communication45–120 minutes for initial diagnosisU0064 concerns vehicle communication bus e. Learn what this fault indicates and where to begin diagnosis.U0065Vehicle Communication Bus E PerformanceCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0065 concerns vehicle communication bus e performance. Learn what this fault indicates and where to begin diagnosis.U0066Vehicle Communication Bus E (+) OpenCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0066 concerns vehicle communication bus e (+) open. Learn what this fault indicates and where to begin diagnosis.U0067Vehicle Communication Bus E (+) LowCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0067 concerns vehicle communication bus e (+) low. Learn what this fault indicates and where to begin diagnosis.U0068Vehicle Communication Bus E (+) HighCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0068 concerns vehicle communication bus e (+) high. Learn what this fault indicates and where to begin diagnosis.U0069Vehicle Communication Bus E (-) OpenCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0069 concerns vehicle communication bus e (-) open. Learn what this fault indicates and where to begin diagnosis.U0070Vehicle Communication Bus E (-) LowCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0070 concerns vehicle communication bus e (-) low. Learn what this fault indicates and where to begin diagnosis.U0071Vehicle Communication Bus E (-) HighCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0071 concerns vehicle communication bus e (-) high. Learn what this fault indicates and where to begin diagnosis.U0072Vehicle Communication Bus E (-) shorted to Bus E (+)Check soonNetwork & Communication45–120 minutes for initial diagnosisU0072 concerns vehicle communication bus e (-) shorted to bus e (+). Learn what this fault indicates and where to begin diagnosis.U0073Control Module Communication Bus A OffCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0073 concerns control module communication bus a off. Learn what this fault indicates and where to begin diagnosis.U0074Control Module Communication Bus B OffCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0074 concerns control module communication bus b off. Learn what this fault indicates and where to begin diagnosis.U0075Control Module Communication Bus C OffCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0075 concerns control module communication bus c off. Learn what this fault indicates and where to begin diagnosis.U0076Control Module Communication Bus D OffCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0076 concerns control module communication bus d off. Learn what this fault indicates and where to begin diagnosis.U0077Control Module Communication Bus E OffCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0077 concerns control module communication bus e off. Learn what this fault indicates and where to begin diagnosis.U0078Control Module Communication Bus F OffCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0078 concerns control module communication bus f off. Learn what this fault indicates and where to begin diagnosis.U0079Control Module Communication Bus G OffCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0079 concerns control module communication bus g off. Learn what this fault indicates and where to begin diagnosis.U007AControl Module Communication Bus H OffCheck soonNetwork & Communication45–120 minutes for initial diagnosisU007A concerns control module communication bus h off. Learn what this fault indicates and where to begin diagnosis.U007BControl Module Communication Bus I OffCheck soonNetwork & Communication45–120 minutes for initial diagnosisU007B concerns control module communication bus i off. Learn what this fault indicates and where to begin diagnosis.U007CControl Module Communication Bus J OffCheck soonNetwork & Communication45–120 minutes for initial diagnosisU007C concerns control module communication bus j off. Learn what this fault indicates and where to begin diagnosis.U007DControl Module Communication Bus K OffCheck soonNetwork & Communication45–120 minutes for initial diagnosisU007D concerns control module communication bus k off. Learn what this fault indicates and where to begin diagnosis.U007EControl Module Communication Bus L OffCheck soonNetwork & Communication45–120 minutes for initial diagnosisU007E concerns control module communication bus l off. Learn what this fault indicates and where to begin diagnosis.U007FControl Module Communication Bus M OffCheck soonNetwork & Communication45–120 minutes for initial diagnosisU007F concerns control module communication bus m off. Learn what this fault indicates and where to begin diagnosis.U0080Vehicle Communication Bus FCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0080 concerns vehicle communication bus f. Learn what this fault indicates and where to begin diagnosis.U0081Vehicle Communication Bus F PerformanceCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0081 concerns vehicle communication bus f performance. Learn what this fault indicates and where to begin diagnosis.