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 7101-7200 of 8192 total codes
U1XXX Network Communication Systems
U1BBC
U1BBC indicates a communication error within the vehicle's control modules.
U1BBD
DTC U1BBD indicates a communication problem within the vehicle's Body Control...
U1BBE
U1BBE indicates a communication issue between vehicle control modules.
U1BBF
U1BBF indicates a communication error within the vehicle's network,
U1BC0
DTC U1BC0 indicates a communication problem between control modules in your v...
U1BC1
DTC U1BC1 indicates a communication error within the vehicle's control modules.
U1BC2
U1BC2 indicates a communication issue within the vehicle's control modules.
U1BC3
The U1BC3 code indicates a communication issue in the Advanced Driver Assista...
U1BC4
U1BC4 indicates a communication failure between vehicle control modules.
U1BC5
U1BC5 indicates a communication issue in the vehicle's driver assistance syst...
U1BC6
U1BC6 indicates a communication problem among vehicle modules.
U1BC7
U1BC7 indicates a communication issue between vehicle control modules.
U1BC8
U1BC8 indicates a communication fault within the vehicle's control modules.
U1BC9
Indicates a fault within the vehicle's communication network.
U1BCA
U1BCA indicates a problem with the advanced driver assistance systems related...
U1BCB
The U1BCB code signifies a communication error within the vehicle's network,
U1BCC
U1BCC indicates a communication failure within the vehicle's control systems,...
U1BCD
U1BCD indicates a communication issue in the vehicle's body control module.
U1BCE
U1BCE indicates a communication problem between the Body Control Module and o...
U1BCF
U1BCF indicates a communication failure in the vehicle's advanced driver-assi...
U1BD0
U1BD0 indicates a communication issue within the vehicle's electronic control...
U1BD1
U1BD1 indicates a communication failure in the battery monitoring system.
U1BD2
U1BD2 indicates a communication error in the vehicle's network.
U1BD3
U1BD3 indicates a communication error in the vehicle's advanced systems.
U1BD4
U1BD4 indicates a communication failure between vehicle modules related to ADAS.
U1BD5
U1BD5 indicates a communication issue within the vehicle's electrical system,...
U1BD6
U1BD6 indicates a communication issue between vehicle control modules.
U1BD7
DTC U1BD7 indicates a malfunction in the steering angle sensor communication.
U1BD8
U1BD8 indicates a communication error between the body control module and con...
U1BD9
U1BD9 indicates a communication issue within the vehicle's network,
U1BDA
The U1BDA code indicates a communication issue within the vehicle's advanced ...
U1BDB
U1BDB indicates a communication failure between body control modules in your ...
U1BDC
U1BDC indicates a communication error within the vehicle's body control module.
U1BDD
U1BDD signifies a communication issue within your vehicle's ADAS.
U1BDE
U1BDE indicates a communication issue between vehicle modules.
U1BDF
U1BDF indicates a communication error between vehicle control modules,
U1BE0
U1BE0 indicates a communication issue within the vehicle's control modules.
U1BE1
U1BE1 signifies a communication issue within the vehicle's ADAS.
U1BE2
U1BE2 indicates a communication issue within the vehicle's network,
U1BE3
U1BE3 indicates a communication error within the vehicle's electronic systems.
U1BE4
U1BE4 signifies a communication fault within the vehicle’s electronic systems...
U1BE5
U1BE5 refers to a communication range issue within the vehicle's network,
U1BE6
U1BE6 indicates a communication issue between vehicle control modules.
U1BE7
U1BE7 indicates a fault in the high voltage battery system of specific hybrid...
U1BE8
U1BE8 indicates a communication issue between vehicle modules,
U1BE9
U1BE9 indicates a communication problem within the vehicle's network.
U1BEA
U1BEA indicates a communication error between vehicle modules,
U1BEB
DTC U1BEB indicates a communication fault within the vehicle's internal network.
U1BEC
DTC U1BEC indicates a communication issue within the vehicle’s control modules.
U1BED
U1BED indicates a communication error between vehicle modules related to adva...
U1BEE
Indicates communication failure, which could stem from wiring issues,
U1BEF
DTC U1BEF signifies a fault in the Battery Energy Control Module,
U1BF0
U1BF0 indicates a communication issue between vehicle control modules.
U1BF1
U1BF1 indicates a communication fault in the vehicle's control modules.
U1BF2
U1BF2 means there's a communication error between vehicle control modules.
U1BF3
U1BF3 indicates a communication failure between vehicle modules.
U1BF4
U1BF4 indicates a communication issue within the vehicle's body control module.
U1BF5
U1BF5 indicates a communication error between the Body Control Module and oth...
U1BF6
U1BF6 indicates a communication error in the vehicle's network.
U1BF7
Indicates problem in the communication between the vehicle's control modules,...
U1BF8
U1BF8 indicates a communication issue in the vehicle's network,
U1BF9
The U1BF9 code indicates a communication fault in the vehicle’s control modules.
U1BFA
U1BFA indicates a communication issue within the vehicle's body control modul...
U1BFB
U1BFB indicates a communication failure in the body control module network.
U1BFC
U1BFC indicates a network communication issue between vehicle modules.
U1BFD
U1BFD indicates a communication error between vehicle control modules.
U1BFE
Indicates the BCM is not receiving or sending messages correctly between othe...
U1BFF
U1BFF indicates a communication fault between vehicle control modules.
U1C00
U1C00 indicates a communication error between vehicle control modules.
U1C01
U1C01 means there's a problem with the High Voltage Battery Control Module,
U1C02
U1C02 indicates a communication error in the vehicle's control modules.
U1C03
U1C03 indicates a fault in the High-Voltage Battery Control Module,
U1C04
The U1C04 code indicates a communication failure between vehicle modules.
U1C05
DTC U1C05 signals a communication error in the multi-function camera system,
U1C06
DTC U1C06 indicates a communication issue within the vehicle's control modules.
U1C07
U1C07 indicates a communication malfunction in the vehicle's network,
U1C08
U1C08 indicates a communication failure between the body control module and a...
U1C09
U1C09 indicates a communication error within the vehicle's electronic control...
U1C0A
U1C0A indicates a communication issue between vehicle control modules.
U1C0B
U1C0B indicates a malfunction in the vehicle's communication network.
U1C0C
U1C0C indicates a communication issue within the vehicle's control module sys...
U1C0D
U1C0D indicates communication issues between vehicle control modules.
U1C0E
U1C0E indicates a communication issue within the vehicle's network.
U1C0F
U1C0F indicates a communication problem between vehicle modules,
U1C10
U1C10 indicates a communication issue within the vehicle's control modules.
U1C11
U1C11 indicates a communication error between vehicle control modules.
U1C12
U1C12 indicates a communication failure within the vehicle's electronic contr...
U1C13
U1C13 indicates a communication error in the vehicle's CAN system.
U1C14
U1C14 indicates a communication issue within the vehicle's network,
U1C15
U1C15 refers to a malfunction in the vehicle stability control system's commu...
U1C16
U1C16 indicates a communication error between vehicle control modules.
U1C17
U1C17 indicates a communication issue between electronic modules in your vehi...
U1C18
U1C18 indicates a communication error between vehicle control modules.
U1C19
U1C19 indicates a communication failure between vehicle control modules,
U1C1A
The U1C1A code indicates a communication issue between vehicle control module...
U1C1B
U1C1B indicates a communication failure between control modules related to ad...
U1C1C
U1C1C indicates a communication error in the vehicle's control modules.
U1C1D
U1C1D indicates a communication error within the CAN system of the vehicle.
U1C1E
U1C1E indicates a communication error in the vehicle's ADAS.
U1C1F
U1C1F indicates a communication error in the vehicle's network,
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