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 6901-7000 of 8192 total codes
U1XXX Network Communication Systems
U1AF4
U1AF4 indicates a communication error between vehicle control modules.
U1AF5
U1AF5 indicates a communication failure within the vehicle's ADAS systems,
U1AF6
U1AF6 indicates a communication error in the vehicle's control modules.
U1AF7
U1AF7 indicates a communication failure within the high-speed CAN bus system ...
U1AF8
Indicates disruption in the data exchange between various electronic control ...
U1AF9
U1AF9 indicates a communication problem within the vehicle's control modules,...
U1AFA
U1AFA indicates a communication issue within the vehicle's systems,
U1AFB
U1AFB indicates a communication issue within the vehicle's electronic modules.
U1AFC
U1AFC indicates a communication error among vehicle control modules.
U1AFD
Indicates dvisable to address this code promptly to avoid escalating problems.
U1AFE
The U1AFE code indicates a communication error within the vehicle's advanced ...
U1AFF
U1AFF indicates a communication error in the vehicle's network related to adv...
U1B00
The U1B00 code indicates a network communication error in your vehicle's cont...
U1B01
U1B01 indicates a vehicle communication network malfunction.
U1B02
U1B02 indicates a communication fault in vehicle networks, often affecting mu...
U1B03
U1B03 indicates a communication fault in the vehicle's data bus,
U1B04
U1B04 indicates a communication fault between vehicle control modules,
U1B05
U1B05 indicates a communication error between vehicle modules.
U1B06
U1B06 indicates a communication issue between vehicle modules.
U1B07
U1B07 indicates a communication issue within the vehicle's control modules.
U1B08
U1B08 indicates a communication error within the vehicle's network.
U1B09
U1B09 indicates a fault in communication between the vehicle's control modules.
U1B0A
U1B0A indicates a communication problem with the Body Control Module.
U1B0B
The U1B0B code indicates a communication error within the vehicle's control m...
U1B0C
U1B0C indicates a communication error between the battery energy control modu...
U1B0D
U1B0D indicates a communication issue within the vehicle's electronic modules.
U1B0E
The U1B0E code indicates a communication issue within your vehicle's control ...
U1B0F
DTC U1B0F indicates a communication fault within the vehicle's ABS or ESC sys...
U1B10
The U1B10 code indicates a communication fault in the vehicle's network,
U1B11
U1B11 indicates a communication issue between control modules in your vehicle...
U1B12
U1B12 indicates a communication fault in the vehicle's LIN network,
U1B13
U1B13 indicates a communication issue within the vehicle's modules,
U1B14
U1B14 indicates a communication issue within the vehicle's electronic modules.
U1B15
U1B15 indicates a communication error within the vehicle's control modules,
U1B16
U1B16 indicates a communication issue within the vehicle's electronic control...
U1B17
DTC U1B17 refers to a communication error in the vehicle's network,
U1B18
U1B18 indicates a communication error in the vehicle's body control module.
U1B19
U1B19 indicates a communication error within the vehicle's control modules.
U1B1A
The U1B1A code indicates a communication failure within the vehicle's electro...
U1B1B
The U1B1B diagnostic trouble code (DTC) indicates a communication issue withi...
U1B1C
U1B1C indicates a communication issue between vehicle modules related to adva...
U1B1D
U1B1D indicates a communication error between the Body Control Module and oth...
U1B1E
U1B1E indicates a communication issue within the vehicle's control modules.
U1B1F
The U1B1F code indicates a communication issue within the vehicle's network,
U1B20
U1B20 indicates a communication issue between vehicle control modules.
U1B21
U1B21 indicates a communication error between vehicle modules,
U1B22
U1B22 indicates a communication failure between vehicle control modules.
U1B23
Indicates a malfunction within the Advanced Driver Assistance System (ADAS) o...
U1B24
U1B24 indicates a communication issue within the vehicle's network,
U1B25
DTC U1B25 indicates a communication failure between the Body Control Module a...
U1B26
DTC U1B26 indicates a communication issue within the Battery Management System.
U1B27
U1B27 indicates a communication failure between the BCM and the Instrument Cl...
U1B28
U1B28 indicates a communication error between your vehicle's Body Control Mod...
U1B29
U1B29 indicates a communication fault between the body control module and the...
U1B2A
U1B2A indicates a communication error between the body control module and oth...
U1B2B
DTC U1B2B indicates a communication issue between the body control module and...
U1B2C
U1B2C indicates a communication issue between vehicle modules.
U1B2D
DTC U1B2D indicates a fault in the vehicle's communication network between co...
U1B2E
The U1B2E code indicates a communication issue with the vehicle's lighting co...
U1B2F
U1B2F indicates a communication failure among vehicle control modules.
U1B30
U1B30 indicates a malfunction in the high voltage battery system,
U1B31
U1B31 indicates a communication issue within your vehicle's electronic modules.
U1B32
DTC U1B32 denotes a communication error within the vehicle's control systems.
U1B33
U1B33 indicates a communication issue between vehicle control modules.
U1B34
U1B34 indicates a communication problem in the vehicle's control modules.
U1B35
U1B35 indicates a communication failure in the vehicle's advanced driver assi...
U1B36
U1B36 indicates a communication failure between vehicle control modules.
U1B37
U1B37 indicates a communication issue within the vehicle's network,
U1B38
DTC U1B38 indicates a communication issue among vehicle control modules.
U1B39
U1B39 indicates a communication error between vehicle control modules.
U1B3A
The U1B3A code signifies a communication issue with the body control module.
U1B3B
U1B3B indicates a communication issue in the vehicle's electronic control mod...
U1B3C
The DTC code U1B3C refers to a communication error within the vehicle's netwo...
U1B3D
U1B3D indicates a communication issue within the vehicle's electronic systems.
U1B3E
U1B3E indicates a communication error between vehicle control modules in cert...
U1B3F
U1B3F indicates a communication issue between vehicle control modules,
U1B40
U1B40 indicates a communication problem between the Body Control Module and o...
U1B41
DTC U1B41 indicates a communication issue within the vehicle’s ADAS modules.
U1B42
U1B42 indicates a communication error in the vehicle's control modules.
U1B43
U1B43 indicates a communication fault in the vehicle's control modules.
U1B44
U1B44 indicates a communication problem between the body control module and o...
U1B45
U1B45 indicates a communication issue between the body control module and oth...
U1B46
U1B46 indicates a communication error between vehicle modules,
U1B47
U1B47 indicates a communication error between vehicle control modules.
U1B48
U1B48 indicates a communication failure within the vehicle's ADAS systems.
U1B49
U1B49 indicates a communication issue between vehicle control modules.
U1B4A
U1B4A indicates a communication issue within the vehicle's control modules.
U1B4B
DTC U1B4B indicates a communication issue within the vehicle's advanced drive...
U1B4C
The diagnostic trouble code U1B4C indicates a communication issue within the ...
U1B4D
U1B4D indicates a communication error between vehicle modules.
U1B4E
U1B4E indicates a communication issue within the vehicle's body control modul...
U1B4F
U1B4F indicates a communication error in the Advanced Driver Assistance Syste...
U1B50
U1B50 indicates a communication issue within the vehicle's control modules.
U1B51
The U1B51 code indicates a communication fault in the vehicle's body control ...
U1B52
U1B52 indicates a communication problem within the vehicle's ADAS.
U1B53
U1B53 indicates a communication error within the vehicle's network,
U1B54
DTC U1B54 indicates a communication failure between the vehicle's body contro...
U1B55
U1B55 indicates a communication problem in the vehicle's control modules.
U1B56
The U1B56 code indicates a communication issue between the BCM and ECU in you...
U1B57
U1B57 indicates a communication issue between the vehicle's control modules.
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