Network OBD-II Codes (Uxxxx)
299 diagnostic trouble codes
Network/Communication codes indicate problems with the vehicle's internal communication systems (CAN bus, LIN bus, SCP). These codes appear when control modules cannot communicate properly with each other.
U1250SCP (J1850) Invalid or Missing Data for Vehicle Id (VIN)Manufacturer-specificU1251SCP (J1850) Invalid or Missing Data for Vehicle Id (VIN)Manufacturer-specificU1252SCP (J1850) Invalid or Missing Data for Class A FunctionsManufacturer-specificU1253SCP (J1850) Invalid or Missing Data for Class A FunctionsManufacturer-specificU1254SCP (J1850) Invalid or Missing Data for Network ControlManufacturer-specificU1255SCP (J1850) Invalid or Missing Data for Network ControlManufacturer-specificU1260SCP (J1850) Single Ended (+) Circuit FailureManufacturer-specificU1261SCP (J1850) Single Ended (-) Circuit FailureManufacturer-specificU1262SCP (J1850) Communication Bus FaultManufacturer-specificU1308SCP (J1850) Invalid or Missing Data for Function Read Engine TorqueManufacturer-specificU1341SCP (J1850) Invalid or Missing Data for Function Read Vehicle SpeedManufacturer-specificU1430SCP (J1850) Invalid or Missing Data for Function Read Fuel SystemManufacturer-specificU1451SCP (J1850) Invalid or Missing Data for Function Read Audible Warnings / Anti-Theft Module, Vehicle ImmobilizedManufacturer-specificU1612SCP (J1850) Lack of Acknowledgment for Primary IdManufacturer-specificU1736SCP (J1850) Lack of Acknowledgment for TelltalesManufacturer-specificU1750SCP (J1850) Lack of Acknowledgment for Audible WarningsManufacturer-specificU1794SCP (J1850) Lack of Acknowledgment for MirrorsManufacturer-specificU1797SCP (J1850) Lack of Acknowledgment for Door LocksManufacturer-specificU1798SCP (J1850) Lack of Acknowledgment for External Access (Doors)Manufacturer-specificU1806SCP (J1850) Lack of Acknowledgment for Primary IdManufacturer-specificU1900CAN Communication Bus FaultManufacturer-specificU1950UPB Communication Bus FaultManufacturer-specificU2000Audio Rear Control Unit is Not RespondingGenericU2001Audio Tape Deck Unit is Not RespondingGenericU2002Audio Bezel is Not RespondingGenericU2003Audio Compact Disk / Disk Jockey Unit is Not RespondingGenericU2004Audio Steering Wheel Control Unit is Not RespondingGenericU2005Audio Rear Integrated Control Panel Unit is Not RespondingGenericU2006Audio Remote Climate Control Unit is Not RespondingGenericU2007Audio Navigation Unit is Not RespondingGenericU2008Audio Phone is Not RespondingGenericU2009Audio Front Control Module (ACM) is Not RespondingGenericU2010Module is Not Responding (Non SCP)GenericU2011Module Transmitted Invalid Data (Non SCP)GenericU2012Communication Bus Error (Non SCP)GenericU2013Compass Module is not RespondingGenericU2014Audio Subwoofer Unit is Not RespondingGenericU2015Signal Link Fault (Non SCP)GenericU2016Signal Link Short to Ground (Non SCP) / From NGV ModuleGenericU2017Driver Side Crash Sensor Communication Fault (Non SCP)GenericU2018Passenger Side Crash Sensor Communication Fault (Non SCP)GenericU2019Audio Voice Module Not RespondingGenericU2020Audio Center Amp is not respondingGenericU2021Invalid /fault data received (Non SCP)GenericU2150SCP (J1850) Invalid Data from REMGenericU2152SCP (J1850) Invalid Data from GEMGenericU2160SCP (J1850) Invalid Data from ICGenericU2195SCP (J1850) Invalid Data from SCLMGenericU2500(CAN) Lack of Acknowledgement From Engine ManagementGeneric
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