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 8001-8100 of 8192 total codes
U1XXX Network Communication Systems
U1F40
U1F40 indicates a communication problem within your vehicle's network,
U1F41
U1F41 indicates a communication fault between vehicle control modules.
U1F42
U1F42 indicates a communication issue between vehicle control modules.
U1F43
DTC U1F43 indicates a communication failure within the vehicle's Body Control...
U1F44
U1F44 indicates a communication fault between vehicle control modules.
U1F45
U1F45 indicates a communication error in the vehicle's control modules relate...
U1F46
U1F46 indicates a communication issue within the vehicle's control modules.
U1F47
U1F47 signifies a communication error in the vehicle's network,
U1F48
U1F48 indicates a communication issue within the vehicle's control modules.
U1F49
U1F49 indicates a communication failure between the hybrid control module and...
U1F4A
U1F4A indicates a communication issue within your vehicle's Gateway Module.
U1F4B
U1F4B signifies a communication bus error among vehicle modules.
U1F4C
U1F4C indicates a communication error between control modules in your vehicle.
U1F4D
DTC U1F4D indicates a communication issue between vehicle control modules,
U1F4E
U1F4E indicates a communication issue between vehicle control modules.
U1F4F
U1F4F signifies a communication issue in the vehicle's control modules.
U1F50
U1F50 signals a network communication error between vehicle control modules.
U1F51
U1F51 indicates a communication error between vehicle control modules.
U1F52
U1F52 indicates a communication failure between vehicle modules.
U1F53
U1F53 indicates a communication fault between vehicle modules.
U1F54
U1F54 indicates a communication issue within the vehicle's electronic systems.
U1F55
U1F55 denotes a communication error between vehicle control modules,
U1F56
U1F56 indicates a communication fault within vehicle modules.
U1F57
DTC U1F57 indicates a communication failure between vehicle modules,
U1F58
U1F58 indicates a communication fault in the center stack control module.
U1F59
U1F59 indicates a communication fault within the vehicle's control modules.
U1F5A
U1F5A indicates a communication error within the vehicle’s control modules.
U1F5B
The U1F5B code indicates a communication error in your vehicle's advanced dri...
U1F5C
U1F5C indicates a communication error between vehicle control modules.
U1F5D
The U1F5D code indicates a communication failure among the vehicle's control ...
U1F5E
U1F5E indicates a communication issue between vehicle control modules.
U1F5F
U1F5F indicates a communication error between control modules in your vehicle.
U1F60
DTC U1F60 indicates a communication fault within the vehicle's body control m...
U1F61
U1F61 indicates a communication error between vehicle control modules.
U1F62
DTC U1F62 indicates a communication error between vehicle control modules.
U1F63
U1F63 indicates a communication problem between vehicle control modules.
U1F64
DTC U1F64 indicates a communication issue within the vehicle's network,
U1F65
The diagnostic trouble code (DTC) U1F65 indicates a communication error betwe...
U1F66
U1F66 indicates a communication error in the vehicle's network.
U1F67
U1F67 indicates a communication error between vehicle modules.
U1F68
The U1F68 code indicates a communication issue within the vehicle’s network,
U1F69
U1F69 indicates a communication error within the vehicle's control modules.
U1F6A
DTC U1F6A indicates a communication error within the vehicle's control module...
U1F6B
U1F6B indicates a communication error between vehicle control modules.
U1F6C
U1F6C indicates a communication issue between vehicle control modules.
U1F6D
U1F6D indicates a communication error between vehicle modules.
U1F6E
U1F6E indicates a communication issue within the vehicle’s control systems.
U1F6F
U1F6F indicates a communication error within the vehicle's network,
U1F70
DTC U1F70 indicates a communication error between vehicle modules.
U1F71
Indicates a problem with the vehicle's communication network, which can affec...
U1F72
The U1F72 code indicates a communication issue within the vehicle's CAN netwo...
U1F73
U1F73 indicates a communication error between vehicle control modules.
U1F74
U1F74 indicates a communication failure between control modules in your vehicle.
U1F75
U1F75 indicates a communication problem between the vehicle's control modules.
U1F76
U1F76 signifies a communication error between vehicle modules.
U1F77
U1F77 indicates a communication error between vehicle modules.
U1F78
U1F78 indicates a communication problem between vehicle modules,
U1F79
U1F79 indicates a communication issue in the vehicle's control modules,
U1F7A
U1F7A indicates a communication error between the High Voltage Battery Contro...
U1F7B
U1F7B signifies a communication error among vehicle control modules,
U1F7C
U1F7C indicates a communication issue between control modules in your vehicle.
U1F7D
U1F7D indicates a communication error within the vehicle’s control modules.
U1F7E
U1F7E indicates a communication error between vehicle control modules.
U1F7F
U1F7F indicates a communication malfunction within the vehicle's network.
U1F80
DTC U1F80 signals a communication issue within the vehicle's control modules.
U1F81
U1F81 indicates a communication issue between vehicle control modules in the ...
U1F82
U1F82 signifies a communication error between the body control module and oth...
U1F83
U1F83 indicates a communication error within the vehicle's network,
U1F84
U1F84 indicates a communication error in the vehicle's network.
U1F85
The diagnostic trouble code (DTC) U1F85 indicates a communication issue withi...
U1F86
U1F86 indicates a communication error with the Battery Energy Control Module.
U1F87
U1F87 indicates a communication issue between electronic control modules in y...
U1F88
U1F88 indicates a communication error in the vehicle's network.
U1F89
U1F89 indicates a communication issue between the body control module and oth...
U1F8A
U1F8A indicates a communication failure between vehicle control modules.
U1F8B
The diagnostic trouble code U1F8B indicates a communication issue within the ...
U1F8C
U1F8C indicates a communication error within the vehicle's control modules,
U1F8D
U1F8D indicates a communication error between vehicle modules.
U1F8E
U1F8E indicates an issue with the vehicle's communication bus,
U1F8F
U1F8F indicates a communication issue within the vehicle's network.
U1F90
U1F90 indicates a communication issue within the vehicle's control modules.
U1F91
U1F91 indicates a communication error between control modules.
U1F92
U1F92 indicates a communication error within the vehicle's electronic systems.
U1F93
U1F93 indicates a communication problem between vehicle modules.
U1F94
U1F94 indicates a communication issue between control modules in your vehicle.
U1F95
U1F95 indicates a communication issue between vehicle control modules.
U1F96
U1F96 indicates a communication error between the BCM and PCM.
U1F97
U1F97 indicates a communication failure within the vehicle's body control mod...
U1F98
U1F98 indicates a communication error within the vehicle's ADAS systems.
U1F99
DTC U1F99 indicates a communication error within the vehicle's electronic sys...
U1F9A
U1F9A indicates a communication error in the vehicle's control modules.
U1F9B
U1F9B indicates a communication failure with the Battery Energy Control Module.
U1F9C
U1F9C signifies a communication error in the vehicle's network,
U1F9D
DTC U1F9D indicates a communication error in the vehicle's network,
U1F9E
U1F9E indicates a communication failure among vehicle control modules.
U1F9F
U1F9F indicates a communication issue among control modules in your vehicle.
U1FA0
The U1FA0 code indicates a communication failure within the vehicle's CAN bus...
U1FA1
U1FA1 indicates a communication error within the vehicle's electronic systems.
U1FA2
Indicates communication error indicating a potential issue within the vehicle...
U1FA3
U1FA3 indicates a communication error in the vehicle's system,
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