Network Communication Codes (U0XXX)
Complete list of network communication diagnostic trouble codes (U0XXX). Browse codes for CAN bus and module communication issues.
Popular Network Communication Codes
U0121
Lost Communication with ABS
Lost Communication with Anti-Lock Brake System Control Module
U0202
Lost Communication with Instrument Panel
Lost Communication with Instrument Panel Control Module
U0300
Lost Communication with Infotainment
Lost Communication with Infotainment Control Module
Complete Network Codes Index
Browse all available network communication diagnostic trouble codes (U0XXX) organized by series:
Showing codes 6201-6300 of 8192 total codes
U1XXX Network Communication Systems
U1838
U1838 indicates a communication failure between the vehicle's control modules.
U1839
U1839 signifies a communication breakdown between vehicle control modules.
U183A
U183A indicates a communication error between vehicle modules,
U183B
DTC U183B indicates a communication malfunction between vehicle control modul...
U183C
U183C indicates a communication failure between the Body Control Module and o...
U183D
U183D indicates a communication error between vehicle control modules.
U183E
U183E indicates a communication fault between vehicle control modules.
U183F
DTC U183F indicates a communication problem within the vehicle's infotainment...
U1840
DTC U1840 signifies a communication fault between vehicle control modules.
U1841
U1841 indicates a communication error between the Body Control Module and the...
U1842
U1842 signifies a communication issue in the vehicle's CAN bus system,
U1843
U1843 indicates a communication error between control modules.
U1844
DTC U1844 signifies a communication error between the vehicle's control modules.
U1845
U1845 indicates a communication failure between the body control module and o...
U1846
U1846 signifies a communication error within the ABS module.
U1847
Indicates a communication error within the vehicle's control network,
U1848
U1848 indicates a communication fault with the fuel level sensor.
U1849
U1849 indicates a communication error between the BCM and other control modules.
U184A
DTC U184A indicates a communication fault within the vehicle's network,
U184B
U184B signifies a communication issue between the body control module and oth...
U184C
U184C indicates a communication error between the BCM and IPC.
U184D
U184D indicates a communication failure between vehicle control modules,
U184E
The U184E code indicates a communication issue between control modules in you...
U184F
U184F indicates a communication error between the Transmission Control Module...
U1850
U1850 indicates a communication error in the CAN bus system, affecting variou...
U1851
U1851 indicates a communication error between vehicle control modules.
U1852
U1852 indicates a communication error in the vehicle's network.
U1853
U1853 indicates a communication fault between the Body Control Module and oth...
U1854
U1854 indicates a communication error in the high-speed CAN bus,
U1855
U1855 indicates a communication error with the Body Control Module.
U1856
U1856 indicates a communication failure in the vehicle's control modules.
U1857
DTC U1857 refers to a communication error within the CAN bus system of your v...
U1858
U1858 indicates a communication error in the vehicle's control modules.
U1859
U1859 indicates a communication failure between vehicle modules.
U185A
U185A indicates a communication loss between vehicle modules, particularly in...
U185B
U185B indicates a communication malfunction between the vehicle's control mod...
U185C
DTC U185C indicates a communication failure between control modules.
U185D
U185D indicates a communication failure between vehicle modules.
U185E
U185E indicates a communication issue between the vehicle control module and ...
U185F
U185F indicates a loss of communication with the instrument panel cluster.
U1860
The U1860 code indicates a communication fault within the vehicle's CAN bus s...
U1861
The U1861 code indicates a communication issue within the vehicle's control m...
U1862
DTC U1862 indicates a communication failure between the Body Control Module a...
U1863
U1863 indicates a communication problem in the vehicle's high-speed CAN bus.
U1864
U1864 indicates a communication fault in the vehicle's control module network.
U1865
U1865 indicates a communication error between vehicle control modules.
U1866
The U1866 code signifies a communication failure on the CAN bus,
U1867
The U1867 code indicates a communication error between the body control modul...
U1868
U1868 indicates a communication failure between vehicle control modules.
U1869
U1869 signifies a communication problem between the vehicle's control modules.
U186A
U186A indicates a communication issue between vehicle control modules.
U186B
U186B indicates a communication failure between vehicle modules.
U186C
U186C signals a communication issue within the vehicle's electronic systems.
U186D
U186D indicates a communication failure between control modules in your vehicle.
U186E
U186E indicates a communication failure between vehicle modules.
U186F
U186F indicates a communication disruption between vehicle control modules.
U1870
U1870 indicates a communication error between control modules in your vehicle.
U1871
U1871 indicates a communication failure between control modules,
U1872
U1872 indicates a communication error among vehicle control modules,
U1873
U1873 indicates a communication problem within the vehicle's control modules.
U1874
U1874 indicates a communication error between vehicle control modules,
U1875
U1875 indicates a communication failure between the vehicle's Transmission Co...
U1876
U1876 indicates a communication error between vehicle control modules.
U1877
U1877 indicates a communication failure between the TCM and ECM.
U1878
DTC U1878 indicates a communication failure between vehicle control modules,
U1879
DTC U1879 indicates a communication error between vehicle control modules.
U187A
U187A indicates a communication error between the Transmission Control Module...
U187B
U187B indicates a communication error between vehicle control modules.
U187C
DTC U187C indicates a communication error between the PCM and other vehicle m...
U187D
The U187D diagnostic trouble code indicates a communication malfunction withi...
U187E
U187E indicates a communication failure between vehicle control modules.
U187F
The U187F code indicates a communication failure between the ECM and TCM.
U1880
U1880 indicates a communication error between vehicle control modules.
U1881
U1881 indicates a communication error in the CAN bus network of your vehicle.
U1882
U1882 indicates a communication error between vehicle control modules.
U1883
U1883 indicates a communication error between vehicle control modules,
U1884
U1884 indicates a communication error between vehicle control modules.
U1885
The U1885 code indicates a communication error within the vehicle's data bus ...
U1886
U1886 indicates a communication problem between vehicle modules,
U1887
U1887 is a communication error code related to the Body Control Module.
U1888
U1888 indicates a communication failure between vehicle modules.
U1889
U1889 indicates a communication error between vehicle control modules.
U188A
U188A indicates a communication failure between control modules,
U188B
U188B indicates a communication error within the vehicle's Body Control Module.
U188C
U188C indicates a communication failure between vehicle control modules.
U188D
U188D indicates a communication issue between vehicle modules.
U188E
U188E indicates a communication failure between vehicle modules over the CAN ...
U188F
U188F indicates a communication failure between control modules in the vehicle.
U1890
U1890 indicates a communication error in the vehicle's network,
U1891
U1891 indicates a communication error in the vehicle's network,
U1892
The U1892 code indicates a communication problem within the vehicle's network...
U1893
U1893 indicates a communication failure between vehicle control modules.
U1894
U1894 indicates a communication error in the vehicle's network,
U1895
DTC U1895 indicates a communication error between control modules in your veh...
U1896
U1896 indicates a communication issue between vehicle control modules.
U1897
U1897 indicates a communication issue between vehicle modules.
U1898
U1898 indicates a communication fault between vehicle control modules.
U1899
U1899 indicates a malfunction in vehicle communication, affecting various con...
U189A
The U189A code signifies a communication issue within the vehicle's control m...
U189B
U189B indicates a communication fault within the vehicle's control modules.
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