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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

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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 7537–7560 of 8256

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U048AInvalid Data Received From Digital Disc Player/Changer Module CCheck soonNetwork & Communication45–120 minutes for initial diagnosisU048A concerns invalid data received from digital disc player/changer module c. Learn what this fault indicates and where to begin diagnosis.U048BInvalid Data Received From Headlamp Leveling Control Module BCheck soonNetwork & Communication45–120 minutes for initial diagnosisU048B concerns invalid data received from headlamp leveling control module b. Learn what this fault indicates and where to begin diagnosis.U0491Invalid Data Received From Digital Disc Player/Changer Module DCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0491 concerns invalid data received from digital disc player/changer module d. Learn what this fault indicates and where to begin diagnosis.U0492Invalid Data Received From TelevisionCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0492 concerns invalid data received from television. Learn what this fault indicates and where to begin diagnosis.U0493Invalid Data Received From Personal ComputerCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0493 concerns invalid data received from personal computer. Learn what this fault indicates and where to begin diagnosis.U0494Invalid Data Received From Digital Audio Control Module ACheck soonNetwork & Communication45–120 minutes for initial diagnosisU0494 concerns invalid data received from digital audio control module a. Learn what this fault indicates and where to begin diagnosis.U0495Invalid Data Received From Digital Audio Control Module BCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0495 concerns invalid data received from digital audio control module b. Learn what this fault indicates and where to begin diagnosis.U0496Invalid Data Received From Subscription Entertainment Receiver ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0496 concerns invalid data received from subscription entertainment receiver module. Learn what this fault indicates and where to begin diagnosis.U0497Invalid Data Received From Entertainment Control Module - Rear ACheck soonNetwork & Communication45–120 minutes for initial diagnosisU0497 concerns invalid data received from entertainment control module - rear a. Learn what this fault indicates and where to begin diagnosis.U0498Invalid Data Received From Telephone Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0498 concerns invalid data received from telephone control module. Learn what this fault indicates and where to begin diagnosis.U0499Invalid Data Received From Telematic Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0499 concerns invalid data received from telematic control module. Learn what this fault indicates and where to begin diagnosis.U049AInvalid Data Received From Door Control Module ACheck soonNetwork & Communication45–120 minutes for initial diagnosisU049A concerns invalid data received from door control module a. Learn what this fault indicates and where to begin diagnosis.U049BInvalid Data Received From Tachograph ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU049B concerns invalid data received from tachograph module. Learn what this fault indicates and where to begin diagnosis.U049CInvalid Data Received From Battery Charger Control Module ACheck soonNetwork & Communication45–120 minutes for initial diagnosisU049C concerns invalid data received from battery charger control module a. Learn what this fault indicates and where to begin diagnosis.U049DInvalid Data Received From Glow Plug Control Module 2Check soonNetwork & Communication45–120 minutes for initial diagnosisU049D concerns invalid data received from glow plug control module 2. Learn what this fault indicates and where to begin diagnosis.U049EInvalid Data Received From Direct Ozone Reduction Catalyst Temperature SensorCheck soonNetwork & Communication45–120 minutes for initial diagnosisU049E concerns invalid data received from direct ozone reduction catalyst temperature sensor. Learn what this fault indicates and where to begin diagnosis.U049FInvalid Data Received From Transmission Range Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU049F concerns invalid data received from transmission range control module. Learn what this fault indicates and where to begin diagnosis.U04A0Invalid Data Received From Engine Coolant Pump Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU04A0 concerns invalid data received from engine coolant pump control module. Learn what this fault indicates and where to begin diagnosis.U04A1Invalid Data Received From Hybrid/EV Battery Interface Control Module ACheck soonNetwork & Communication45–120 minutes for initial diagnosisU04A1 concerns invalid data received from hybrid/ev battery interface control module a. Learn what this fault indicates and where to begin diagnosis.U04A2Invalid Data Received From Hybrid/EV Battery Interface Control Module BCheck soonNetwork & Communication45–120 minutes for initial diagnosisU04A2 concerns invalid data received from hybrid/ev battery interface control module b. Learn what this fault indicates and where to begin diagnosis.U04A3Invalid Data Received From Hybrid/EV Battery Interface Control Module CCheck soonNetwork & Communication45–120 minutes for initial diagnosisU04A3 concerns invalid data received from hybrid/ev battery interface control module c. Learn what this fault indicates and where to begin diagnosis.U04A4Invalid Data Received From Particulate Matter Sensor ACheck soonNetwork & Communication45–120 minutes for initial diagnosisU04A4 concerns invalid data received from particulate matter sensor a. Learn what this fault indicates and where to begin diagnosis.U04A5Invalid Data Received From Hybrid/EV Battery Interface Control Module ECheck soonNetwork & Communication45–120 minutes for initial diagnosisU04A5 concerns invalid data received from hybrid/ev battery interface control module e. Learn what this fault indicates and where to begin diagnosis.U04A6Invalid Data Received From Hybrid/EV Battery Interface Control Module FCheck soonNetwork & Communication45–120 minutes for initial diagnosisU04A6 concerns invalid data received from hybrid/ev battery interface control module f. Learn what this fault indicates and where to begin diagnosis.