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 7401-7500 of 8192 total codes
U1XXX Network Communication Systems
U1CE8
U1CE8 indicates a communication error in the vehicle's CAN system.
U1CE9
U1CE9 signifies a communication error in your vehicle's network,
U1CEA
U1CEA indicates a communication issue within the vehicle's control modules.
U1CEB
U1CEB indicates a communication fault in the vehicle's body control module ne...
U1CEC
Indicates a communication issue within the vehicle's control modules,
U1CED
U1CED indicates a communication error between vehicle control modules.
U1CEE
DTC U1CEE indicates a communication issue between electronic modules in your ...
U1CEF
U1CEF indicates a communication error in the vehicle's network system.
U1CF0
U1CF0 indicates a communication issue within the vehicle's body control module.
U1CF1
U1CF1 signifies a communication fault between vehicle modules,
U1CF2
U1CF2 indicates a communication problem within the vehicle's ADAS network.
U1CF3
Indicates a problem with the vehicle's control modules, which may not be comm...
U1CF4
U1CF4 indicates a communication issue between vehicle control modules.
U1CF5
U1CF5 indicates a communication error in the vehicle's advanced driver-assist...
U1CF6
U1CF6 indicates a communication issue within the vehicle's body control module.
U1CF7
DTC U1CF7 indicates a communication fault between control modules,
U1CF8
U1CF8 signifies a communication fault within vehicle control modules,
U1CF9
U1CF9 indicates a communication failure in the vehicle's control modules.
U1CFA
U1CFA signifies a communication error between vehicle modules.
U1CFB
U1CFB indicates a communication problem between vehicle control modules.
U1CFC
Indicates the vehicle's ability to assist the driver may be impaired,
U1CFD
The U1CFD code indicates a communication issue within the vehicle’s advanced ...
U1CFE
U1CFE indicates a communication failure between the Body Control Module and o...
U1CFF
U1CFF indicates a communication issue between your vehicle's control modules.
U1D00
U1D00 means there's a communication issue among control modules in your vehicle.
U1D01
U1D01 indicates a communication fault between vehicle modules.
U1D02
The U1D02 diagnostic trouble code (DTC) is related to the communication betwe...
U1D03
U1D03 indicates a communication issue with the High Voltage Battery Control M...
U1D04
Indicates a communication issue within the vehicle's network, particularly re...
U1D05
The U1D05 diagnostic trouble code indicates a problem related to the vehicle'...
U1D06
U1D06 indicates a communication failure between vehicle control modules.
U1D07
U1D07 signifies a problem with the high-voltage battery control module in hyb...
U1D08
U1D08 indicates a communication failure within the vehicle's body control mod...
U1D09
U1D09 indicates a communication error between vehicle control modules.
U1D0A
U1D0A indicates a communication error between modules in the vehicle's network.
U1D0B
The U1D0B code indicates a communication failure within the vehicle's body co...
U1D0C
U1D0C indicates a communication fault within the vehicle's control modules.
U1D0D
U1D0D indicates a communication problem between vehicle modules,
U1D0E
U1D0E indicates a communication issue within the body control module,
U1D0F
The U1D0F code indicates a communication problem within the vehicle's control...
U1D10
U1D10 indicates a communication failure between vehicle modules,
U1D11
U1D11 indicates a communication error between vehicle control modules.
U1D12
U1D12 indicates a communication error between vehicle modules.
U1D13
U1D13 indicates a communication issue between vehicle control modules.
U1D14
U1D14 indicates a communication error within the vehicle's control modules.
U1D15
U1D15 indicates a communication error within the body control module.
U1D16
U1D16 indicates a communication problem in the vehicle's control modules.
U1D17
U1D17 indicates a communication error between the Body Control Module and oth...
U1D18
U1D18 indicates a communication issue in the vehicle’s electronic control units.
U1D19
DTC U1D19 indicates a communication failure between control modules in the ve...
U1D1A
The U1D1A code indicates a communication failure in the vehicle’s sensor syst...
U1D1B
U1D1B indicates a communication issue between vehicle control modules.
U1D1C
U1D1C indicates a communication failure between vehicle control modules.
U1D1D
DTC U1D1D indicates a communication fault between your vehicle's electronic m...
U1D1E
U1D1E indicates a communication issue in the vehicle's electronic control units.
U1D1F
U1D1F indicates a communication issue in the vehicle's battery energy control...
U1D20
U1D20 indicates a communication error in the vehicle's network,
U1D21
The U1D21 code indicates communication issues within the vehicle's body contr...
U1D22
U1D22 indicates a communication issue in the vehicle's electronic systems,
U1D23
DTC U1D23 indicates a communication issue between the Body Control Module and...
U1D24
The U1D24 code indicates a communication issue within the vehicle's network,
U1D25
The U1D25 code indicates a fault in the high voltage system of certain electr...
U1D26
U1D26 indicates a communication issue in the vehicle's advanced driver assist...
U1D27
U1D27 signifies a communication error between control modules.
U1D28
U1D28 indicates a communication problem between the vehicle's electronic cont...
U1D29
U1D29 indicates a communication issue between vehicle control modules.
U1D2A
U1D2A indicates a communication failure within the vehicle’s network,
U1D2B
U1D2B indicates a communication error in the vehicle's network,
U1D2C
U1D2C indicates a communication error among vehicle control modules.
U1D2D
U1D2D indicates a communication error within the hybrid vehicle control module.
U1D2E
The U1D2E code indicates a communication issue between control modules,
U1D2F
The U1D2F code indicates a communication failure between modules in your vehi...
U1D30
U1D30 signals a communication issue between vehicle control modules.
U1D31
DTC U1D31 is a diagnostic trouble code that indicates an issue with the commu...
U1D32
Indicates a communication issue within the vehicle's network.
U1D33
U1D33 indicates a communication fault in the Vehicle Dynamics Control Module.
U1D34
U1D34 indicates a communication error between vehicle ECUs.
U1D35
U1D35 indicates a communication error in the vehicle's control modules.
U1D36
U1D36 indicates a communication fault between vehicle control units.
U1D37
U1D37 indicates a communication error between vehicle control modules.
U1D38
U1D38 indicates a communication error in the vehicle's network,
U1D39
U1D39 indicates a communication failure between the body control module and o...
U1D3A
U1D3A indicates a communication failure between vehicle control modules.
U1D3B
U1D3B indicates a communication problem between vehicle control modules.
U1D3C
The U1D3C code indicates a communication issue between the vehicle's ADAS mod...
U1D3D
DTC U1D3D indicates a communication issue with the Battery Energy Control Mod...
U1D3E
The diagnostic trouble code (DTC) U1D3E pertains to a communication issue wit...
U1D3F
The U1D3F code indicates a communication problem between control modules in y...
U1D40
U1D40 indicates a communication issue between vehicle control modules.
U1D41
DTC U1D41 is a diagnostic trouble code that signifies a communication issue b...
U1D42
U1D42 indicates a lost communication message between vehicle modules.
U1D43
U1D43 indicates a communication error between vehicle control modules.
U1D44
U1D44 indicates a communication error within the vehicle's network,
U1D45
U1D45 indicates a vehicle communication network malfunction, affecting module...
U1D46
U1D46 indicates a communication issue with the Body Control Module,
U1D47
U1D47 indicates a communication error between control modules in your vehicle.
U1D48
U1D48 indicates a communication error in the vehicle's CAN bus system.
U1D49
U1D49 indicates a communication error within the vehicle's body control module.
U1D4A
U1D4A indicates a communication fault in the vehicle's control modules.
U1D4B
U1D4B indicates a communication error between vehicle modules.
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