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 2801-2900 of 4097 total codes
U0XXX Network Communication Systems
U0AF0
DTC U0AF0 indicates a communication issue between vehicle modules,
U0AF1
U0AF1 indicates a communication error within the vehicle's control modules,
U0AF2
U0AF2 indicates a communication error between vehicle modules,
U0AF3
DTC U0AF3 indicates a malfunction in the vehicle's steering angle sensor comm...
U0AF4
U0AF4 indicates a communication issue between vehicle control modules.
U0AF5
DTC U0AF5 signifies a communication error within the vehicle's energy control...
U0AF6
U0AF6 indicates a communication error within the vehicle's control modules.
U0AF7
U0AF7 indicates a communication issue between the PCM and other control modules.
U0AF8
Indicates a communication issue within the vehicle's network, particularly in...
U0AF9
The diagnostic trouble code (DTC) U0AF9 indicates a communication issue withi...
U0AFA
U0AFA indicates a communication fault within the vehicle's ADAS system.
U0AFB
U0AFB indicates a communication error within the vehicle's modules,
U0AFC
U0AFC is a communication fault code indicating issues within the vehicle’s el...
U0AFD
The U0AFD code indicates a communication fault between electronic modules in ...
U0AFE
Indicates the BCM is not receiving or sending signals properly to other vehic...
U0AFF
U0AFF indicates a communication error in the vehicle's control modules.
U0B00
U0B00 indicates a communication issue within the vehicle's electronic control...
U0B01
U0B01 indicates a communication issue in your vehicle's electronic system,
U0B02
U0B02 indicates a communication failure between vehicle control modules.
U0B03
U0B03 signifies a communication fault in the vehicle's electronic system.
U0B04
U0B04 indicates a communication error between vehicle modules.
U0B05
U0B05 signifies a communication fault within the vehicle's data bus system.
U0B06
U0B06 indicates a communication malfunction in the vehicle's network.
U0B07
U0B07 indicates a communication failure between vehicle control modules.
U0B08
U0B08 indicates a communication error between vehicle control modules.
U0B09
U0B09 indicates a communication error in the vehicle’s electrical system,
U0B0A
U0B0A indicates a communication problem in your vehicle's control modules.
U0B0B
The U0B0B code indicates a communication issue within the vehicle's CAN bus s...
U0B0C
U0B0C indicates a communication error within the vehicle's control modules.
U0B0D
U0B0D indicates a communication error between vehicle control modules.
U0B0E
U0B0E indicates a communication failure in the vehicle’s network,
U0B0F
U0B0F indicates a communication error within the vehicle's control modules.
U0B10
U0B10 indicates a communication issue between vehicle control modules.
U0B11
U0B11 indicates a communication error in the vehicle's Body Control Module.
U0B12
U0B12 indicates a communication failure between the Body Control Module and o...
U0B13
U0B13 indicates a communication failure between vehicle modules.
U0B14
DTC U0B14 indicates a communication failure with the Body Control Module.
U0B15
U0B15 signifies a communication error in the vehicle's advanced driver assist...
U0B16
U0B16 indicates a communication fault within the body control module.
U0B17
U0B17 indicates a communication error between vehicle control modules.
U0B18
U0B18 indicates a communication fault in the vehicle's Body Control Module ne...
U0B19
Indicates a problem with the vehicle’s communication network, specifically in...
U0B1A
The U0B1A code indicates a communication error between vehicle control modules.
U0B1B
DTC U0B1B signifies a communication failure between vehicle modules.
U0B1C
U0B1C indicates a communication error among the vehicle's control modules.
U0B1D
The U0B1D code indicates a communication issue between vehicle modules.
U0B1E
DTC U0B1E indicates a communication issue within the vehicle's electronic mod...
U0B1F
U0B1F signifies a communication error between vehicle control modules.
U0B20
U0B20 indicates a communication problem between control modules in a vehicle'...
U0B21
DTC U0B21 indicates a communication issue with the Auxiliary Transmission Mod...
U0B22
U0B22 indicates a communication failure between vehicle control modules.
U0B23
U0B23 signifies a communication error in the electric power steering control ...
U0B24
U0B24 indicates a communication issue within the vehicle's network,
U0B25
U0B25 indicates a communication issue within the vehicle's electronic systems.
U0B26
U0B26 indicates a communication error in the vehicle's network.
U0B27
U0B27 indicates a communication error within the vehicle's control modules.
U0B28
U0B28 indicates a communication error between vehicle modules.
U0B29
DTC U0B29 indicates a communication error between vehicle modules,
U0B2A
The U0B2A code indicates a communication problem between vehicle control modu...
U0B2B
U0B2B indicates a communication error between vehicle control modules.
U0B2C
DTC U0B2C signifies a communication failure between control modules in your v...
U0B2D
U0B2D indicates a communication error in the vehicle's control modules.
U0B2E
U0B2E indicates a communication error in the vehicle's electronic systems.
U0B2F
U0B2F indicates a communication failure between vehicle modules.
U0B30
U0B30 indicates a communication fault in the vehicle's battery management sys...
U0B31
U0B31 indicates a communication error in the vehicle's control modules.
U0B32
U0B32 indicates a communication error between the vehicle control module and ...
U0B33
U0B33 indicates a communication error between the Body Control Module and oth...
U0B34
U0B34 indicates a communication failure between vehicle modules,
U0B35
U0B35 indicates a communication error in the vehicle's network.
U0B36
U0B36 indicates a communication error within the vehicle's electronic systems.
U0B37
U0B37 indicates a communication error between control modules in your vehicle.
U0B38
U0B38 indicates a communication error in the power steering control module.
U0B39
U0B39 indicates a communication fault between vehicle control modules,
U0B3A
U0B3A indicates a communication error between the vehicle's body control modu...
U0B3B
DTC U0B3B signifies an issue with the communication between control modules i...
U0B3C
U0B3C indicates a communication failure between the vehicle's modules.
U0B3D
U0B3D indicates a communication error between vehicle control modules.
U0B3E
U0B3E indicates a fault in the Body Control Module's communication network.
U0B3F
U0B3F signifies a communication issue between vehicle control modules.
U0B40
U0B40 indicates a communication error between vehicle modules.
U0B41
U0B41 refers to a communication issue between vehicle control modules.
U0B42
U0B42 indicates a communication error between vehicle control modules.
U0B43
U0B43 indicates a communication issue within the body control module network.
U0B44
U0B44 indicates a communication error with the Battery Energy Control Module.
U0B45
U0B45 signifies a communication error in vehicle modules, often affecting saf...
U0B46
U0B46 indicates a communication error between control modules in your vehicle.
U0B47
U0B47 indicates a communication issue within your vehicle's control modules.
U0B48
DTC U0B48 indicates a communication issue between control modules in your veh...
U0B49
U0B49 indicates a communication issue within the airbag system's components.
U0B4A
The U0B4A code indicates a communication fault within the vehicle's electroni...
U0B4B
U0B4B indicates a communication issue between control modules in your vehicle.
U0B4C
U0B4C indicates a communication error within the vehicle's control modules.
U0B4D
U0B4D indicates a communication failure within the vehicle's control modules,...
U0B4E
U0B4E indicates a communication issue between the powertrain control modules.
U0B4F
U0B4F indicates a communication failure between the vehicle's ECU and the ste...
U0B50
U0B50 indicates a communication issue within the vehicle's control modules.
U0B51
DTC U0B51 indicates a communication issue within the vehicle's electronic sys...
U0B52
U0B52 indicates a communication problem in the vehicle's body control module ...
U0B53
U0B53 indicates a communication failure within the vehicle's control modules.
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