OBD fault code library
Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.
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Fault codes
U0323
Software Incompatibility with Instrument Panel Control Module
Communication Network System
High severity
U0325
Software Incompatibility with Auxiliary Heater Control Module
Communication Network System
High severity
U0326
Software Incompatibility with Vehicle Immobilizer Control Module
Communication Network System
High severity
U0328
Software Incompatibility with Steering Angle Sensor Module
Communication Network System
High severity
U0329
Software Incompatibility with Steering Column Control Module
Communication Network System
High severity
U0331
Software Incompatibility with Body Control Module A
Communication Network System
High severity
U0403
Invalid Data Received From Transfer Case Control Module
Communication Network System
High severity
U0404
Invalid Data Received From Gear Shift Control Module
Communication Network System
High severity
U0407
Invalid Data Received From Glow Plug Control Module
Communication Network System
High severity
U0408
Invalid Data Received From Throttle Actuator Control Module
Communication Network System
High severity
U0410
Invalid Data Received From Fuel Pump Control Module
Communication Network System
High severity
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