U Series — Network

23 U series network fault codes

Code	Description	System	Severity	Brand
U0001	High-Speed CAN Communication Bus	Network/Communication	High	Generic
U0073	Control Module Communication Bus Off	Network/Communication	High	Generic
U0100	Lost Communication With ECM/PCM	Network / Communication	High	Generic
U0101	Lost Communication With TCM	Network / Communication	High	Generic
U0102	Lost Communication with Transfer Case Control Module	Network/Communication	Med	Generic
U0114	Lost Communication with Four-Wheel Drive Clutch Control Module	Network/Communication	Med	Generic
U0121	Lost Communication with ABS Control Module	Network/Communication	High	Generic
U0122	Lost Communication with Vehicle Dynamics Control Module	Network/Communication	High	Generic
U0136	Lost Communication with Fuel Pump Control Module	Network/Communication	High	Generic
U0140	Lost Communication with Body Control Module	Network/Communication	Med	Generic
U0146	Lost Communication with Gateway Module	Network/Communication	High	Generic
U0151	Lost Communication with Restraint Control Module	Network/Communication	High	Generic
U0155	Lost Communication With Instrument Panel Cluster	Network / Communication	Med	Generic
U0159	Lost Communication with Parking Assist Module	Network/Communication	Low	Generic
U0164	Lost Communication with HVAC Control Module	Network/Communication	Low	Generic
U0167	Lost Communication with Anti-Theft Immobilizer Module	Network/Communication	High	Generic
U0184	Lost Communication with Radio	Network/Communication	Low	Generic
U0300	Internal Control Module Software Incompatibility	Network/Communication	Med	Generic
U0401	Invalid/Implausible Data Received from ECM/PCM	Network/Communication	Med	Generic
U0402	Invalid/Implausible Data Received from TCM	Network/Communication	Med	Generic
U0403	Invalid/Implausible Data Received from Body Control Module	Network/Communication	Low	Generic
U0404	Invalid/Implausible Data Received from Instrument Panel Cluster	Network/Communication	Low	Generic
U0415	Invalid/Implausible Data Received from ABS Control Module	Network/Communication	High	Generic