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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

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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 481–504 of 1228

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U033FSoftware Incompatibility With Hybrid/EV Battery Interface Control Module FCheck soonNetwork & Communication45–120 minutes for initial diagnosisU033F concerns software incompatibility with hybrid/ev battery interface control module f. Learn what this fault indicates and where to begin diagnosis.U0340Software Incompatibility With Hybrid/EV Battery Interface Control Module GCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0340 concerns software incompatibility with hybrid/ev battery interface control module g. Learn what this fault indicates and where to begin diagnosis.U0341Software Incompatibility With Hybrid/EV Battery Interface Control Module HCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0341 concerns software incompatibility with hybrid/ev battery interface control module h. Learn what this fault indicates and where to begin diagnosis.U0342Software Incompatibility With Hybrid/EV Battery Interface Control Module ICheck soonNetwork & Communication45–120 minutes for initial diagnosisU0342 concerns software incompatibility with hybrid/ev battery interface control module i. Learn what this fault indicates and where to begin diagnosis.U0343Software Incompatibility With Hybrid/EV Battery Interface Control Module JCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0343 concerns software incompatibility with hybrid/ev battery interface control module j. Learn what this fault indicates and where to begin diagnosis.U0344Software Incompatibility With Hybrid/EV Battery Interface Control Module KCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0344 concerns software incompatibility with hybrid/ev battery interface control module k. Learn what this fault indicates and where to begin diagnosis.U0345Software Incompatibility With Hybrid/EV Battery Interface Control Module LCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0345 concerns software incompatibility with hybrid/ev battery interface control module l. Learn what this fault indicates and where to begin diagnosis.U0346Software Incompatibility With Hybrid/EV Battery Interface Control Module MCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0346 concerns software incompatibility with hybrid/ev battery interface control module m. Learn what this fault indicates and where to begin diagnosis.U0347Software Incompatibility With Hybrid/EV Battery Interface Control Module NCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0347 concerns software incompatibility with hybrid/ev battery interface control module n. Learn what this fault indicates and where to begin diagnosis.U0348Software Incompatibility With Hybrid/EV Battery Interface Control Module OCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0348 concerns software incompatibility with hybrid/ev battery interface control module o. Learn what this fault indicates and where to begin diagnosis.U0349Software Incompatibility With Hybrid/EV Battery Interface Control Module PCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0349 concerns software incompatibility with hybrid/ev battery interface control module p. Learn what this fault indicates and where to begin diagnosis.U034ASoftware Incompatibility With Engine Disconnect ClutchCheck soonNetwork & Communication45–120 minutes for initial diagnosisU034A concerns software incompatibility with engine disconnect clutch. Learn what this fault indicates and where to begin diagnosis.U034BSoftware Incompatibility With Brake Booster ControlCheck soonNetwork & Communication45–120 minutes for initial diagnosisU034B concerns software incompatibility with brake booster control. Learn what this fault indicates and where to begin diagnosis.U034CSoftware Incompatibility With Battery Energy Control Module CCheck soonNetwork & Communication45–120 minutes for initial diagnosisU034C concerns software incompatibility with battery energy control module c. Learn what this fault indicates and where to begin diagnosis.U034DSoftware Incompatibility With Vehicle Thermal Management Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU034D concerns software incompatibility with vehicle thermal management control module. Learn what this fault indicates and where to begin diagnosis.U034ESoftware Incompatibility With Active Grille Air Shutter Module ACheck soonNetwork & Communication45–120 minutes for initial diagnosisU034E concerns software incompatibility with active grille air shutter module a. Learn what this fault indicates and where to begin diagnosis.U034FSoftware Incompatibility With Active Grille Air Shutter Module BCheck soonNetwork & Communication45–120 minutes for initial diagnosisU034F concerns software incompatibility with active grille air shutter module b. Learn what this fault indicates and where to begin diagnosis.U0350Software Incompatibility With Active Grille Air Shutter Module CCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0350 concerns software incompatibility with active grille air shutter module c. Learn what this fault indicates and where to begin diagnosis.U0351Software Incompatibility With Active Grille Air Shutter Module DCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0351 concerns software incompatibility with active grille air shutter module d. Learn what this fault indicates and where to begin diagnosis.U0352Software Incompatibility With NOx Sensor CCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0352 concerns software incompatibility with nox sensor c. Learn what this fault indicates and where to begin diagnosis.U0353Software Incompatibility With Ion Sense ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0353 concerns software incompatibility with ion sense module. Learn what this fault indicates and where to begin diagnosis.U0354Software Incompatibility With Hybrid/EV Battery Inductive Charger Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0354 concerns software incompatibility with hybrid/ev battery inductive charger control module. Learn what this fault indicates and where to begin diagnosis.U0400Invalid Data ReceivedCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0400 concerns invalid data received. Learn what this fault indicates and where to begin diagnosis.U0401Invalid Data Received From ECM/PCM ACheck soonNetwork & Communication45–120 minutes for initial diagnosisU0401 concerns invalid data received from ecm/pcm a. Learn what this fault indicates and where to begin diagnosis.