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 201-300 of 4097 total codes
U0XXX Network Communication Systems
U00C8
DTC U00C8 signifies a communication failure in the vehicle's control modules.
U00C9
The U00C9 code indicates a communication failure between control modules.
U00CA
U00CA indicates a communication error within the vehicle's CAN bus system.
U00CB
U00CB indicates a communication failure between vehicle control modules,
U00CC
U00CC indicates a communication error between vehicle control modules.
U00CD
DTC U00CD signifies a communication issue in the vehicle's electronic control...
U00CE
DTC U00CE indicates a communication error within the vehicle's control modules.
U00CF
U00CF indicates a communication error between vehicle control modules.
U00D0
DTC U00D0 indicates a communication failure between control modules in your v...
U00D1
U00D1 indicates a communication error in the vehicle's control modules.
U00D2
DTC U00D2 signifies a communication problem within the vehicle's control modu...
U00D3
U00D3 signifies a communication issue among vehicle control modules,
U00D4
The U00D4 code indicates a communication error between vehicle modules,
U00D5
U00D5 signifies a communication error between vehicle control modules.
U00D6
DTC U00D6 indicates a communication failure within the vehicle's network,
U00D7
DTC U00D7 indicates a communication error between vehicle control modules.
U00D8
U00D8 signifies a communication failure between the vehicle's control modules.
U00D9
U00D9 indicates a communication issue within your vehicle's network.
U00DA
U00DA indicates a communication error within vehicle control modules.
U00DB
DTC U00DB indicates a communication failure within the vehicle's control modu...
U00DC
U00DC indicates a communication error in the vehicle's network,
U00DD
U00DD indicates a communication error in the vehicle's network,
U00DE
U00DE indicates a communication issue between vehicle control modules.
U00DF
U00DF indicates a communication error between vehicle control modules.
U00E0
U00E0 indicates a communication fault between vehicle control modules.
U00E1
U00E1 indicates a communication error within the vehicle's network,
U00E2
U00E2 indicates a communication issue within the vehicle's data network,
U00E3
U00E3 signifies a communication error between vehicle control modules.
U00E4
The U00E4 code indicates a communication error in the vehicle's CAN bus system.
U00E5
U00E5 signifies a communication error within the vehicle's network,
U00E6
U00E6 indicates a communication error between vehicle modules.
U00E7
DTC U00E7 indicates a communication problem within the vehicle's network.
U00E8
DTC U00E8 signals a communication failure between vehicle control modules.
U00E9
U00E9 indicates a communication issue between vehicle modules.
U00EA
U00EA indicates a communication failure within the vehicle's control modules.
U00EB
U00EB indicates a communication error between control modules in your vehicle.
U00EC
The U00EC code indicates a communication error within the vehicle's electroni...
U00ED
The U00ID code indicates a communication failure in the vehicle's control mod...
U00EE
U00EE indicates a communication error between vehicle control modules,
U00EF
U00EF indicates a communication problem in the vehicle's network,
U00F0
U00F0 indicates a communication issue between vehicle control modules.
U00F1
U00F1 indicates a communication malfunction between vehicle control modules.
U00F2
U00F2 indicates a communication fault within the vehicle's network.
U00F3
U00F3 signifies a communication failure in the vehicle's electronic systems.
U00F4
U00F4 indicates a communication error among vehicle modules.
U00F5
DTC U00F5 indicates a communication error among vehicle control modules.
U00F6
DTC U00F6 indicates a communication failure in the vehicle's network.
U00F7
DTC U00F7 indicates a communication issue within the vehicle's network,
U00F8
DTC U00F8 indicates a communication issue within the vehicle's network.
U00F9
U00F9 indicates a communication failure between control modules in your vehicle.
U00FA
U00FA is a communication link error code affecting data exchange between vehi...
U00FB
The U00FB code indicates a communication error between vehicle modules in the...
U00FC
DTC U00FC indicates a communication error between various electronic control ...
U00FD
U00FD indicates a communication error between vehicle modules.
U00FE
U00FE signifies a communication failure between vehicle control modules.
U00FF
U00FF indicates a communication failure between vehicle control modules.
U0100
U0100 indicates a communication failure with the ECM/PCM.
U0101
U0101 means there's a communication issue between your car's engine and trans...
U0102
U0102 indicates a loss of communication between the ECM and TCM.
U0103
U0103 indicates a lost communication with the Transmission Control Module.
U0104
U0104 indicates a communication loss between the ECM and TCM, potentially lea...
U0105
The U0105 code signifies lost communication with the Transmission Control Mod...
U0106
U0106 indicates a communication failure between the Engine Control Module and...
U0107
DTC U0107 indicates a lost communication with the throttle/pedal position sen...
U0108
DTC U0108 means there is a communication issue between the engine control mod...
U0109
U0109 signifies a communication failure with the fuel pump control module,
U010A
U010A signifies a lost connection between the ECM and the fuel pump control m...
U010B
U010B indicates a communication failure between the ECM and TCM.
U010C
U010C indicates a communication failure between the engine control module and...
U010D
U010D indicates a communication failure between the ECM and TCM.
U010E
U010E indicates a communication failure between the ECM and TCM.
U010F
U010F indicates a loss of communication with the Fuel Pump Control Module.
U0110
U0110 indicates a lost communication issue with the fuel level sensor.
U0111
DTC U0111 indicates a communication failure between the ECM and TCM.
U0112
DTC U0112 denotes a communication failure between the ECM and the ABS module.
U0113
U0113 indicates a communication failure between the TCM and ECM.
U0114
U0114 means there's a communication failure between the ECM and BCM.
U0115
U0115 signifies a communication failure between the ECM and the fuel pump con...
U0116
U0116 means lost communication with the fuel pump control module.
U0117
U0117 signifies lost communication with the fuel pump control module,
U0118
U0118 indicates a lost communication with the fuel pump control module,
U0119
DTC U0119 means there’s a communication error with the fuel level sensor.
U011A
U011A indicates a loss of communication with the Battery Energy Control Modul...
U011B
U011B indicates a loss of communication with the ABS control module.
U011C
U011C indicates a communication failure between the ECM and the BECM.
U011D
U011D indicates a communication failure between the vehicle's computer and th...
U011E
U011E indicates lost communication with the Battery Energy Control Module.
U011F
DTC U011F signifies lost communication with the Hybrid Battery Control Module.
U0120
U0120 indicates a loss of communication between vehicle control modules,
U0121
U0121 indicates a communication failure between the ECM and VDCM.
U0122
U0122 indicates a loss of communication with the Vehicle Dynamics Control Mod...
U0123
U0123 means there's a communication failure between the ECU and the vehicle d...
U0124
U0124 indicates a loss of communication between the ECM and the ABS control m...
U0125
DTC U0125 indicates a communication loss between the steering angle sensor an...
U0126
U0126 indicates a loss of communication between the ECM and TCM.
U0127
U0127 signifies a lost communication with the Electric Power Steering Control...
U0128
U0128 indicates a communication loss with the EPS module.
U0129
DTC U0129 signifies a communication failure between the ECM and EPS module,
U012A
U012A indicates a communication failure with the steering angle sensor module.
U012B
U012B indicates a loss of communication between the Engine Control Module and...
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