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 8101-8192 of 8192 total codes
U1XXX Network Communication Systems
U1FA4
U1FA4 indicates a communication issue within the vehicle's ADAS.
U1FA5
U1FA5 indicates a communication issue within the vehicle's CAN bus system.
U1FA6
U1FA6 indicates a communication fault between vehicle modules.
U1FA7
DTC U1FA7 indicates a communication issue within the vehicle's network,
U1FA8
U1FA8 indicates a communication error in the vehicle's electronic systems,
U1FA9
U1FA9 indicates a communication failure between control modules in your vehic...
U1FAA
DTC U1FAA indicates a communication error within the vehicle's electronic sys...
U1FAB
U1FAB indicates a communication failure in the vehicle's data bus,
U1FAC
The U1FAC code indicates a communication issue with the front axle control mo...
U1FAD
U1FAD indicates a communication failure within the vehicle's body control mod...
U1FAE
The U1FAE code indicates a communication issue within your vehicle's control ...
U1FAF
The U1FAF code signals a communication failure within your vehicle's electron...
U1FB0
U1FB0 indicates a communication issue within the vehicle's electronic control...
U1FB1
U1FB1 indicates a communication fault between vehicle control modules.
U1FB2
U1FB2 indicates a Bluetooth communication error within the vehicle.
U1FB3
U1FB3 indicates a communication issue in the vehicle's electrical system.
U1FB4
U1FB4 signifies a communication fault between vehicle modules,
U1FB5
U1FB5 indicates a communication error between vehicle control modules.
U1FB6
U1FB6 indicates a communication issue between vehicle control modules.
U1FB7
U1FB7 indicates a communication issue within the vehicle's data bus.
U1FB8
U1FB8 indicates a communication failure within the vehicle's ADAS modules.
U1FB9
U1FB9 indicates a communication error within the vehicle's CAN bus system.
U1FBA
U1FBA indicates a communication error in the vehicle's advanced driver-assist...
U1FBB
U1FBB indicates a communication error between vehicle control modules.
U1FBC
U1FBC indicates a communication malfunction within the vehicle's network,
U1FBD
U1FBD indicates a communication failure in the vehicle's wiring or modules.
U1FBE
U1FBE indicates a communication failure between vehicle control modules.
U1FBF
U1FBF indicates a communication failure between vehicle control modules.
U1FC0
U1FC0 indicates a communication error in the vehicle's network,
U1FC1
U1FC1 indicates a communication fault within the vehicle's CAN bus system.
U1FC2
DTC U1FC2 signifies a communication error in your vehicle's advanced driver a...
U1FC3
DTC U1FC3 is a diagnostic trouble code that indicates a communication issue w...
U1FC4
U1FC4 indicates a communication fault between vehicle control modules.
U1FC5
U1FC5 indicates a communication issue in the vehicle's high-speed CAN bus.
U1FC6
U1FC6 indicates a communication fault in the vehicle's control modules,
U1FC7
U1FC7 indicates a communication malfunction between control modules in your v...
U1FC8
U1FC8 indicates a communication error within the vehicle's control modules.
U1FC9
U1FC9 indicates a communication error within the vehicle's advanced systems,
U1FCA
U1FCA indicates a communication error in the vehicle's battery management sys...
U1FCB
U1FCB indicates a communication issue between vehicle control modules.
U1FCC
U1FCC indicates a communication failure between vehicle control modules.
U1FCD
U1FCD indicates a communication issue between the vehicle's control modules.
U1FCE
U1FCE indicates a communication problem within the vehicle's electronic systems.
U1FCF
U1FCF indicates a communication fault in the vehicle's CAN system,
U1FD0
The U1FD0 code indicates a communication issue between vehicle control modules.
U1FD1
U1FD1 indicates a communication issue within the vehicle's electronics,
U1FD2
Indicates a communication issue within the vehicle's network, specifically re...
U1FD3
U1FD3 indicates a communication error in the vehicle's network,
U1FD4
The U1FD4 code indicates a communication problem within the vehicle's electri...
U1FD5
U1FD5 indicates a communication issue between control modules in your vehicle.
U1FD6
U1FD6 indicates a communication failure in the electric power steering system.
U1FD7
U1FD7 indicates a communication issue within the vehicle's electronic control...
U1FD8
U1FD8 indicates a communication failure within the power steering control sys...
U1FD9
DTC U1FD9 indicates a communication error in the vehicle's CAN bus system.
U1FDA
U1FDA indicates a communication fault in the vehicle's control modules.
U1FDB
U1FDB indicates a communication error within your vehicle's body control module.
U1FDC
U1FDC signifies a communication failure between vehicle control modules.
U1FDD
U1FDD signifies a communication error within the vehicle's electronic systems.
U1FDE
U1FDE indicates a communication issue in the vehicle's electronic control mod...
U1FDF
U1FDF indicates a communication issue between vehicle control modules.
U1FE0
The U1FE0 code indicates a communication failure between vehicle control modu...
U1FE1
U1FE1 indicates a communication error between electronic control modules in y...
U1FE2
U1FE2 indicates a communication failure in the vehicle's ADAS system.
U1FE3
The U1FE3 code indicates a communication fault between the battery energy con...
U1FE4
Indicates your vehicle's computer network is having trouble 'talking' to itself.
U1FE5
U1FE5 indicates a communication issue within the vehicle's control modules,
U1FE6
The U1FE6 code indicates a communication error between control modules in you...
U1FE7
DTC U1FE7 indicates a communication error among the vehicle's control modules.
U1FE8
U1FE8 indicates a communication error within the vehicle's control modules,
U1FE9
U1FE9 indicates a communication failure within the vehicle's network,
U1FEA
U1FEA indicates a communication error between vehicle modules.
U1FEB
U1FEB indicates a communication error between vehicle control modules.
U1FEC
U1FEC indicates a communication fault between vehicle modules.
U1FED
U1FED indicates a communication issue in the vehicle's electronic systems.
U1FEE
U1FEE indicates a communication issue between vehicle control modules.
U1FEF
U1FEF indicates a communication fault within the vehicle's network,
U1FF0
U1FF0 indicates a communication error between the chassis control module and ...
U1FF1
U1FF1 indicates a communication error between vehicle modules.
U1FF2
DTC U1FF2 indicates a communication issue among control modules in your vehicle.
U1FF3
U1FF3 indicates a communication error between vehicle control modules.
U1FF4
U1FF4 indicates a fault in the high voltage battery system of hybrid and elec...
U1FF5
U1FF5 indicates a communication issue with the battery energy control module ...
U1FF6
DTC U1FF6 indicates a communication failure between control modules in your v...
U1FF7
U1FF7 indicates a communication error in advanced driver assistance systems.
U1FF8
DTC U1FF8 indicates a communication issue within the vehicle's electronic con...
U1FF9
U1FF9 indicates a communication error in the battery management system.
U1FFA
U1FFA indicates a communication failure between vehicle control modules.
U1FFB
U1FFB indicates a communication fault in the vehicle's Body Control Module.
U1FFC
U1FFC indicates a communication fault in the vehicle's network.
U1FFD
The U1FFD code indicates a communication issue between vehicle control module...
U1FFE
U1FFE indicates a communication issue within the vehicle's control modules.
U1FFF
U1FFF is a communication error between vehicle control modules.
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