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 7301-7400 of 8192 total codes
U1XXX Network Communication Systems
U1C84
DTC U1C84 indicates a communication malfunction between vehicle modules.
U1C85
U1C85 indicates a communication bus off condition in your vehicle's control m...
U1C86
DTC U1C86 indicates a communication failure between the body control module a...
U1C87
DTC U1C87 indicates a communication issue within your vehicle's electrical sy...
U1C88
U1C88 indicates a communication error between the BCM and PCM in your vehicle.
U1C89
U1C89 indicates a communication fault within the vehicle's network.
U1C8A
U1C8A signifies a communication breakdown between vehicle modules.
U1C8B
U1C8B indicates a communication fault in the vehicle's control network.
U1C8C
U1C8C signifies a communication fault between control modules,
U1C8D
U1C8D indicates a communication issue within the vehicle's electronic systems...
U1C8E
U1C8E indicates a communication error between vehicle control modules.
U1C8F
U1C8F indicates a communication issue in the vehicle's power management system.
U1C90
U1C90 indicates a communication failure with the body control module.
U1C91
U1C91 indicates a communication error in the vehicle's network.
U1C92
DTC U1C92 indicates a communication fault among vehicle control modules.
U1C93
U1C93 indicates a communication error between vehicle control modules.
U1C94
DTC U1C94 indicates a communication issue within the vehicle's control modules.
U1C95
U1C95 indicates a communication error within the vehicle's network.
U1C96
U1C96 indicates a communication error between vehicle control modules.
U1C97
U1C97 indicates a communication issue within the vehicle's electronic control...
U1C98
U1C98 indicates a communication issue between vehicle control modules.
U1C99
U1C99 indicates a communication error in the electric power steering system.
U1C9A
U1C9A indicates a communication error between vehicle control modules.
U1C9B
U1C9B indicates a body control module communication error.
U1C9C
U1C9C indicates a communication issue in the vehicle's network.
U1C9D
DTC U1C9D indicates a communication failure within the vehicle's control modu...
U1C9E
DTC U1C9E is a diagnostic trouble code that indicates an issue with the vehic...
U1C9F
U1C9F indicates a communication error in the high-voltage battery control mod...
U1CA0
U1CA0 signifies a communication fault between vehicle control modules.
U1CA1
U1CA1 indicates a communication error within the vehicle's network,
U1CA2
U1CA2 indicates a communication failure in the vehicle's CAN bus system.
U1CA3
U1CA3 indicates a communication error between vehicle modules,
U1CA4
U1CA4 indicates a communication issue between vehicle control modules.
U1CA5
U1CA5 indicates a communication failure within the vehicle's control modules.
U1CA6
U1CA6 indicates a communication failure within the vehicle's electronic contr...
U1CA7
U1CA7 indicates a communication failure within the vehicle's control modules.
U1CA8
U1CA8 indicates a communication problem in the vehicle's ADAS system,
U1CA9
U1CA9 indicates a communication issue within the vehicle's network,
U1CAA
U1CAA indicates a communication error in the vehicle's network,
U1CAB
U1CAB indicates a communication issue in your vehicle's CAN bus,
U1CAC
U1CAC indicates a communication error within the vehicle's control modules.
U1CAD
U1CAD signifies a communication issue within the vehicle's network,
U1CAE
U1CAE indicates a communication failure in the vehicle's network,
U1CAF
U1CAF indicates a communication error between the Body Control Module and oth...
U1CB0
DTC U1CB0 indicates a communication error within the vehicle's control modules.
U1CB1
U1CB1 indicates a communication error in the vehicle's control module network.
U1CB2
U1CB2 indicates a communication issue within the vehicle's electronic systems...
U1CB3
U1CB3 indicates a communication failure within the vehicle's control modules.
U1CB4
U1CB4 indicates a communication error within vehicle control modules.
U1CB5
U1CB5 indicates a communication error between the Transmission Control Module...
U1CB6
U1CB6 indicates a communication issue between control modules,
U1CB7
U1CB7 signifies a communication error in the vehicle's network affecting adva...
U1CB8
U1CB8 indicates a communication error with the high voltage battery control m...
U1CB9
U1CB9 indicates a communication fault in the vehicle's driver assistance syst...
U1CBA
DTC U1CBA indicates a communication issue within the vehicle's control modules.
U1CBB
U1CBB indicates a communication error in the vehicle's control modules.
U1CBC
U1CBC indicates a communication failure within your vehicle's electronic cont...
U1CBD
U1CBD indicates a communication error between the power steering control modu...
U1CBE
U1CBE indicates a communication issue in the vehicle's body control module sy...
U1CBF
U1CBF indicates a communication issue within the vehicle's control modules.
U1CC0
U1CC0 indicates a communication fault in the vehicle's control modules,
U1CC1
U1CC1 indicates a communication issue within the vehicle's ADAS network.
U1CC2
U1CC2 indicates a communication error in the vehicle motion control module.
U1CC3
U1CC3 indicates a communication fault between vehicle control modules.
U1CC4
U1CC4 signifies a communication fault in the vehicle's ADAS, often related to...
U1CC5
U1CC5 indicates a communication issue within the vehicle's network,
U1CC6
U1CC6 indicates a communication error within the vehicle's network,
U1CC7
U1CC7 indicates a communication fault within the vehicle's control modules,
U1CC8
The diagnostic trouble code (DTC) U1CC8 indicates a communication issue withi...
U1CC9
The U1CC9 code indicates a communication issue with the body control module.
U1CCA
U1CCA indicates a communication error within the vehicle's control modules.
U1CCB
U1CCB indicates a communication error within the vehicle's control modules.
U1CCC
U1CCC represents a communication issue within the vehicle's CAN system.
U1CCD
U1CCD indicates a communication error between vehicle control modules.
U1CCE
U1CCE indicates a communication fault with the battery management system in v...
U1CCF
U1CCF indicates a communication issue between the vehicle's control modules.
U1CD0
U1CD0 indicates a communication failure between vehicle control modules.
U1CD1
U1CD1 indicates a communication error between the vehicle's control modules.
U1CD2
U1CD2 indicates a communication failure in the vehicle's control modules.
U1CD3
U1CD3 indicates a communication error in the vehicle's control modules.
U1CD4
DTC U1CD4 indicates a communication error between vehicle modules,
U1CD5
Indicates a communication issue within the vehicle's network, specifically re...
U1CD6
U1CD6 signifies a communication failure between vehicle control modules.
U1CD7
U1CD7 indicates a communication fault in the vehicle's network,
U1CD8
DTC U1CD8 signals a communication fault in the vehicle’s control systems,
U1CD9
U1CD9 indicates a communication issue between vehicle modules.
U1CDA
The U1CDA code signifies a communication fault between vehicle modules,
U1CDB
U1CDB indicates a communication error between vehicle control modules.
U1CDC
U1CDC indicates a communication error in vehicle control modules.
U1CDD
U1CDD indicates a communication fault in the vehicle's control modules.
U1CDE
U1CDE indicates a communication error between vehicle control modules,
U1CDF
U1CDF indicates a communication failure between vehicle control modules.
U1CE0
U1CE0 indicates a communication issue between control modules in your vehicle.
U1CE1
U1CE1 indicates a communication issue between vehicle control modules.
U1CE2
U1CE2 indicates a communication error between control modules in your vehicle.
U1CE3
U1CE3 signifies a communication issue in the hybrid control module of your ve...
U1CE4
U1CE4 indicates a communication error within the vehicle's control modules.
U1CE5
U1CE5 indicates a communication issue within the body control module in certa...
U1CE6
Indicates a communication error between control modules within your vehicle.
U1CE7
U1CE7 indicates a network communication issue within the car's electronic sys...
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