Diagnostic library

Find an OBD2 code

Search the code from your scanner, then narrow the library by system, severity, or code family.

9,253 diagnostic guides

Sort

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.

U · Network Clear all

Quick browse

Choose a vehicle system

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 577–600 of 1228

Most searched first

U044AInvalid Data Received From Serial Data Gateway Module DCheck soonNetwork & Communication45–120 minutes for initial diagnosisU044A concerns invalid data received from serial data gateway module d. Learn what this fault indicates and where to begin diagnosis.U044BInvalid Data Received From Battery Energy Control Module CCheck soonNetwork & Communication45–120 minutes for initial diagnosisU044B concerns invalid data received from battery energy control module c. Learn what this fault indicates and where to begin diagnosis.U044CInvalid Data Received From Hybrid/EV Battery Inductive Charging ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU044C concerns invalid data received from hybrid/ev battery inductive charging module. Learn what this fault indicates and where to begin diagnosis.U044DInvalid Data Received From Generator B Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU044D concerns invalid data received from generator b control module. Learn what this fault indicates and where to begin diagnosis.U044FInvalid Data Received From Mirror Control Module BCheck soonNetwork & Communication45–120 minutes for initial diagnosisU044F concerns invalid data received from mirror control module b. Learn what this fault indicates and where to begin diagnosis.U0451Invalid Data Received From Serial Data Gateway Module ECheck soonNetwork & Communication45–120 minutes for initial diagnosisU0451 concerns invalid data received from serial data gateway module e. Learn what this fault indicates and where to begin diagnosis.U0452Invalid Data Received From Restraints Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0452 concerns invalid data received from restraints control module. Learn what this fault indicates and where to begin diagnosis.U0453Invalid Data Received From Side Restraints Control Module - LeftCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0453 concerns invalid data received from side restraints control module - left. Learn what this fault indicates and where to begin diagnosis.U0454Invalid Data Received From Side Restraints Control Module - RightCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0454 concerns invalid data received from side restraints control module - right. Learn what this fault indicates and where to begin diagnosis.U0455Invalid Data Received From Restraints Occupant Classification System ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0455 concerns invalid data received from restraints occupant classification system module. Learn what this fault indicates and where to begin diagnosis.U0456Invalid Data Received From Coolant Temperature Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0456 concerns invalid data received from coolant temperature control module. Learn what this fault indicates and where to begin diagnosis.U0457Invalid Data Received From Information Center ACheck soonNetwork & Communication45–120 minutes for initial diagnosisU0457 concerns invalid data received from information center a. Learn what this fault indicates and where to begin diagnosis.U0458Invalid Data Received From Information Center BCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0458 concerns invalid data received from information center b. Learn what this fault indicates and where to begin diagnosis.U0459Invalid Data Received From Head Up DisplayCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0459 concerns invalid data received from head up display. Learn what this fault indicates and where to begin diagnosis.U045AInvalid Data Received From Parking Assist Control Module ACheck soonNetwork & Communication45–120 minutes for initial diagnosisU045A concerns invalid data received from parking assist control module a. Learn what this fault indicates and where to begin diagnosis.U045BInvalid Data Received From Anti-Lock Brake System (ABS) Control Module BCheck soonNetwork & Communication45–120 minutes for initial diagnosisU045B concerns invalid data received from anti-lock brake system (abs) control module b. Learn what this fault indicates and where to begin diagnosis.U045CInvalid Data Received From Power Steering Control Module “B”Check soonNetwork & Communication45–120 minutes for initial diagnosisU045C concerns invalid data received from power steering control module “b”. Learn what this fault indicates and where to begin diagnosis.U045DInvalid Data Received From Automated Driving System Control Module ACheck soonNetwork & Communication45–120 minutes for initial diagnosisU045D concerns invalid data received from automated driving system control module a. Learn what this fault indicates and where to begin diagnosis.U045EInvalid Data Received From Automated Driving System Control Module BCheck soonNetwork & Communication45–120 minutes for initial diagnosisU045E concerns invalid data received from automated driving system control module b. Learn what this fault indicates and where to begin diagnosis.U045FInvalid Data Received From Automated Driving System Interface Module “A”Check soonNetwork & Communication45–120 minutes for initial diagnosisU045F concerns invalid data received from automated driving system interface module “a”. Learn what this fault indicates and where to begin diagnosis.U0460Invalid Data Received From Automated Driving System Interface Module “B”Check soonNetwork & Communication45–120 minutes for initial diagnosisU0460 concerns invalid data received from automated driving system interface module “b”. Learn what this fault indicates and where to begin diagnosis.U0461Invalid Data Received From Audible Alert Control ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0461 concerns invalid data received from audible alert control module. Learn what this fault indicates and where to begin diagnosis.U0462Invalid Data Received From Compass ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0462 concerns invalid data received from compass module. Learn what this fault indicates and where to begin diagnosis.U0463Invalid Data Received From Navigation Display ModuleCheck soonNetwork & Communication45–120 minutes for initial diagnosisU0463 concerns invalid data received from navigation display module. Learn what this fault indicates and where to begin diagnosis.