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

U0100

Lost Communication with ECM

Lost Communication with Engine Control Module

U0101

Lost Communication with TCM

Lost Communication with Transmission Control Module

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 4201-4300 of 8192 total codes

U1XXX Network Communication Systems

U1068
U1068 signifies a communication failure in the vehicle's network,
U1069
U1069 indicates a communication failure with the fuel level sensor.
U106A
U106A indicates a communication failure between the PCM and other control mod...
U106B
U106B means there's a communication failure between control modules in your v...
U106C
U106C indicates a communication issue between vehicle control modules.
U106D
U106D signifies a communication failure between the ECM and BCM.
U106E
U106E indicates a communication error between vehicle control modules,
U106F
U106F indicates a communication error between the Body Control Module and oth...
U1070
U1070 indicates a communication failure between the ECM and ABS module.
U1071
U1071 indicates a communication loss between control modules in your vehicle.
U1072
U1072 signifies a communication error in the vehicle's network,
U1073
U1073 indicates a communication failure between modules in the vehicle's netw...
U1074
U1074 indicates a communication error between vehicle control modules.
U1075
DTC U1075 indicates a communication failure between the speed control module ...
U1076
Indicates nd resolution critical for maintaining your vehicle's reliability.
U1077
U1077 signifies a lost communication between the ECM and the Steering Angle S...
U1078
U1078 indicates a communication error between vehicle control modules.
U1079
DTC U1079 indicates a communication failure between the vehicle's control mod...
U107A
U107A indicates a communication failure between vehicle control modules.
U107B
U107B is a communication error code indicating a failure in vehicle control m...
U107C
U107C indicates a communication failure between control modules.
U107D
The U107D code signifies a communication issue between the control modules in...
U107E
U107E indicates a lost communication with a control module in your vehicle.
U107F
U107F indicates a communication loss between vehicle control modules.
U1080
U1080 indicates a communication loss between control modules, often related t...
U1081
U1081 indicates a communication failure between vehicle control modules.
U1082
U1082 indicates a loss of communication between the ECM and the instrument cl...
U1083
U1083 signifies a communication failure with the Body Control Module.
U1084
U1084 signifies a communication failure between vehicle control modules.
U1085
Indicates a communication issue within the controller area network (CAN) of y...
U1086
U1086 is a code that signifies a communication failure among vehicle control ...
U1087
DTC U1087 signifies a communication loss with the fuel level sensor module.
U1088
DTC U1088 indicates a loss of communication with the vehicle control module,
U1089
DTC U1089 indicates a communication loss between the Engine Control Module (E...
U108A
U108A indicates a communication error in the vehicle's control module network.
U108B
U108B indicates a communication error between vehicle control modules.
U108C
U108C indicates a communication loss with the ABS module.
U108D
DTC U108D indicates a communication error between vehicle control modules.
U108E
U108E indicates a problem with communication between vehicle control modules.
U108F
DTC U108F indicates a communication failure between the Body Control Module a...
U1090
U1090 indicates a loss of communication with a specific control module in you...
U1091
U1091 indicates a communication failure between vehicle control modules.
U1092
U1092 signifies a communication error between vehicle control modules.
U1093
DTC U1093 signifies a communication failure with the fuel pump control module.
U1094
U1094 indicates a communication failure between the ECM and BCM.
U1095
U1095 signifies a communication error between the vehicle's control modules.
U1096
U1096 indicates a communication failure with the brake control module.
U1097
U1097 indicates a communication failure between vehicle control modules.
U1098
U1098 indicates a communication error between vehicle control modules.
U1099
The U1099 code indicates a communication failure between the Engine Control M...
U109A
U109A indicates a communication problem with the body control module in your ...
U109B
U109B indicates a communication failure between the ECM and FPCM.
U109C
The U109C code signifies a communication error between control modules in you...
U109D
U109D indicates a communication failure between control modules,
U109E
U109E indicates a communication failure within the vehicle's control modules.
U109F
U109F indicates a communication failure between vehicle control modules.
U10A0
The U10A0 code signifies a communication issue within the vehicle's network,
U10A1
The U10A1 code indicates a communication failure in the vehicle's control mod...
U10A2
U10A2 indicates a communication failure between vehicle control modules.
U10A3
U10A3 indicates a communication failure between vehicle control modules,
U10A4
U10A4 indicates a communication failure between control modules in your vehicle.
U10A5
U10A5 indicates a communication error between vehicle modules.
U10A6
U10A6 indicates a communication error between the engine control module and t...
U10A7
U10A7 indicates a communication error between the vehicle's modules.
U10A8
The DTC U10A8 code indicates a communication issue between the vehicle’s cont...
U10A9
U10A9 indicates a communication error between control modules in your vehicle.
U10AA
U10AA indicates a communication failure in the vehicle's network,
U10AB
U10AB indicates a communication issue between your vehicle's control modules.
U10AC
U10AC indicates a communication failure between control modules in your vehicle.
U10AD
U10AD indicates a communication error in the high-speed CAN bus system,
U10AE
U10AE indicates a communication failure among the vehicle's control modules.
U10AF
U10AF signifies a communications fault among vehicle control modules,
U10B0
U10B0 indicates a communication error between the vehicle's control modules,
U10B1
U10B1 indicates a communication issue between vehicle control modules.
U10B2
U10B2 indicates a communication fault between vehicle modules.
U10B3
U10B3 indicates a communication error between control modules in your vehicle.
U10B4
DTC U10B4 is a diagnostic trouble code that indicates a communication issue w...
U10B5
The U10B5 code indicates a communication error in the battery monitoring system.
U10B6
U10B6 is a communication error between the vehicle's control modules,
U10B7
U10B7 indicates a network communication issue between vehicle modules.
U10B8
U10B8 signifies a communication error between vehicle control modules,
U10B9
U10B9 indicates a communication error in the vehicle's CAN network.
U10BA
U10BA indicates a communication issue within the vehicle's electronic control...
U10BB
U10BB indicates a communication error between vehicle control modules.
U10BC
U10BC indicates a communication issue within the vehicle's electronic control...
U10BD
U10BD refers to a communication issue within the vehicle's battery monitoring...
U10BE
U10BE indicates a failure in communication between vehicle control modules.
U10BF
U10BF indicates a communication issue within your vehicle’s electronic contro...
U10C0
U10C0 indicates a communication problem in the vehicle's control modules.
U10C1
DTC U10C1 indicates a communication error between control modules in your veh...
U10C2
U10C2 indicates a communication problem between control modules.
U10C3
U10C3 signifies a communication error in the vehicle's CAN system,
U10C4
U10C4 indicates a communication failure within the vehicle's Body Control Mod...
U10C5
U10C5 indicates a communication error in your vehicle's control modules.
U10C6
U10C6 indicates a communication failure between vehicle control modules.
U10C7
U10C7 indicates a network communication issue between control modules in your...
U10C8
U10C8 indicates a communication failure in the vehicle’s powertrain control m...
U10C9
U10C9 indicates a communication error in the vehicle's network,
U10CA
U10CA indicates a communication issue within the vehicle's control systems,
U10CB
U10CB indicates a communication error between the vehicle's control modules.
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