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.

Check soon U · Network Clear all

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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 673–696 of 1223

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U04BAInvalid Data Received from Switch Input Module “A”Check soonNetwork & Communication45–120 minutes for initial diagnosisU04BA concerns invalid data received from switch input module “a”. Learn what this fault indicates and where to begin diagnosis.U04BBInvalid Data Received from Switch Input Module “B”Check soonNetwork & Communication45–120 minutes for initial diagnosisU04BB concerns invalid data received from switch input module “b”. Learn what this fault indicates and where to begin diagnosis.U04BCInvalid Data Received from Switch Input Module “C”Check soonNetwork & Communication45–120 minutes for initial diagnosisU04BC concerns invalid data received from switch input module “c”. Learn what this fault indicates and where to begin diagnosis.U04BDInvalid Data Received From Park Lock/Pawl Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU04BD concerns invalid data received from park lock/pawl control module. Learn what this fault indicates and where to begin diagnosis.U04BEInvalid Data Received From Battery Charger Control Module BCheck soonNetwork & Communication45–120 minutes for initial diagnosisU04BE concerns invalid data received from battery charger control module b. Learn what this fault indicates and where to begin diagnosis.U04BFInvalid Data Received from Drive Motor A Clutch ActuatorCheck soonNetwork & Communication45–120 minutes for initial diagnosisU04BF concerns invalid data received from drive motor a clutch actuator. Learn what this fault indicates and where to begin diagnosis.U04C0Invalid Data Received from Battery Management Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU04C0 concerns invalid data received from battery management control module. Learn what this fault indicates and where to begin diagnosis.U0501Invalid Data Received From Door Control Module BCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0501 concerns invalid data received from door control module b. Learn what this fault indicates and where to begin diagnosis.U0502Invalid Data Received From Door Control Module CCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0502 concerns invalid data received from door control module c. Learn what this fault indicates and where to begin diagnosis.U0503Invalid Data Received From Door Control Module DCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0503 concerns invalid data received from door control module d. Learn what this fault indicates and where to begin diagnosis.U0504Invalid Data Received From Door Control Module ECheck soonNetwork & Communication45–120 minutes for initial diagnosisU0504 concerns invalid data received from door control module e. Learn what this fault indicates and where to begin diagnosis.U0505Invalid Data Received From Door Control Module FCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0505 concerns invalid data received from door control module f. Learn what this fault indicates and where to begin diagnosis.U0506Invalid Data Received From Door Control Module GCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0506 concerns invalid data received from door control module g. Learn what this fault indicates and where to begin diagnosis.U0507Invalid Data Received From Folding Top Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0507 concerns invalid data received from folding top control module. Learn what this fault indicates and where to begin diagnosis.U0508Invalid Data Received From Moveable Roof Control Module ACheck soonNetwork & Communication45–120 minutes for initial diagnosisU0508 concerns invalid data received from moveable roof control module a. Learn what this fault indicates and where to begin diagnosis.U0509Invalid Data Received From Seat Control Module ACheck soonNetwork & Communication45–120 minutes for initial diagnosisU0509 concerns invalid data received from seat control module a. Learn what this fault indicates and where to begin diagnosis.U050AInvalid Data Received From Seat Control Module BCheck soonNetwork & Communication45–120 minutes for initial diagnosisU050A concerns invalid data received from seat control module b. Learn what this fault indicates and where to begin diagnosis.U050BInvalid Data Received From Moveable Roof Control Module “B”Check soonNetwork & Communication45–120 minutes for initial diagnosisU050B concerns invalid data received from moveable roof control module “b”. Learn what this fault indicates and where to begin diagnosis.U050CInvalid Data Received From Door Control Module HCheck soonNetwork & Communication45–120 minutes for initial diagnosisU050C concerns invalid data received from door control module h. Learn what this fault indicates and where to begin diagnosis.U050DInvalid Data Received From Wireless Accessory Charging Module ACheck soonNetwork & Communication45–120 minutes for initial diagnosisU050D concerns invalid data received from wireless accessory charging module a. Learn what this fault indicates and where to begin diagnosis.U050EInvalid Data Received From Wireless Accessory Charging Module BCheck soonNetwork & Communication45–120 minutes for initial diagnosisU050E concerns invalid data received from wireless accessory charging module b. Learn what this fault indicates and where to begin diagnosis.U0511Invalid Data Received From Seat Control Module CCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0511 concerns invalid data received from seat control module c. Learn what this fault indicates and where to begin diagnosis.U0512Invalid Data Received From Seat Control Module DCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0512 concerns invalid data received from seat control module d. Learn what this fault indicates and where to begin diagnosis.U0513Invalid Data Received From Yaw Rate Sensor ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0513 concerns invalid data received from yaw rate sensor module. Learn what this fault indicates and where to begin diagnosis.