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 1201-1300 of 4097 total codes
U0XXX Network Communication Systems
U04B0
U04B0 indicates a communication failure between control modules in your vehicle.
U04B1
DTC U04B1 indicates a communication fault within the vehicle's battery manage...
U04B2
U04B2 signals a communication error between control modules in your vehicle.
U04B3
U04B3 indicates a communication issue between vehicle modules,
U04B4
The U04B4 code indicates a communication error between vehicle control modules.
U04B5
U04B5 signifies a communication error between vehicle control modules,
U04B6
U04B6 indicates a communication malfunction between control modules.
U04B7
The U04B7 code signifies a communication failure between vehicle control modu...
U04B8
DTC U04B8 indicates a communication issue between vehicle control modules.
U04B9
U04B9 indicates a communication issue among vehicle control modules,
U04BA
U04BA signifies a communication issue with the body control module in your ve...
U04BB
U04BB is a diagnostic trouble code indicating a communication issue between t...
U04BC
U04BC signifies a communication failure between vehicle modules on the CAN bus.
U04BD
U04BD indicates a communication error in vehicle control modules.
U04BE
U04BE indicates a communication issue between vehicle control modules.
U04BF
U04BF indicates a communication fault between vehicle control modules.
U04C0
U04C0 indicates a communication error between control modules.
U04C1
U04C1 indicates a communication failure between the Body Control Module and t...
U04C2
DTC U04C2 indicates an invalid data transmission between vehicle control modu...
U04C3
DTC U04C3 indicates a loss of communication with the steering angle sensor mo...
U04C4
U04C4 indicates a communication failure between vehicle control modules.
U04C5
U04C5 indicates a communication error between vehicle control modules.
U04C6
U04C6 indicates a communication error between vehicle control modules.
U04C7
U04C7 indicates a communication error between control modules in your vehicle...
U04C8
U04C8 indicates a communication issue between vehicle control modules.
U04C9
U04C9 indicates a communication issue between vehicle modules.
U04CA
U04CA indicates a communication error between the Body Control Module and oth...
U04CB
U04CB indicates a loss of communication between vehicle control modules.
U04CC
DTC U04CC indicates a communication issue between control modules in your veh...
U04CD
U04CD indicates a communication issue between vehicle control modules.
U04CE
DTC U04CE indicates lost communication with the steering column control module.
U04CF
U04CF indicates a communication problem between vehicle control modules.
U04D0
U04D0 indicates a communication error in the vehicle's electronic control units.
U04D1
U04D1 indicates a communication error between control modules.
U04D2
U04D2 indicates a communication failure with the Battery Energy Control Modul...
U04D3
U04D3 indicates a communication error between vehicle control modules.
U04D4
U04D4 indicates a communication failure between the modules in your vehicle.
U04D5
U04D5 indicates a communication error between vehicle modules,
U04D6
U04D6 indicates a communication fault between vehicle control modules.
U04D7
U04D7 indicates a communication error between control modules in your vehicle.
U04D8
U04D8 indicates a communication issue between vehicle control modules.
U04D9
U04D9 indicates a communication error in the hybrid powertrain control module.
U04DA
U04DA indicates a communication failure between the EPS module and other cont...
U04DB
The diagnostic trouble code (DTC) U04DB indicates a communication issue betwe...
U04DC
The U04DC code indicates a communication failure between the body control mod...
U04DD
U04DD indicates a communication error in the vehicle's control modules.
U04DE
The U04DE code signifies a communication failure between control modules in y...
U04DF
U04DF indicates a communication failure between vehicle modules.
U04E0
U04E0 signifies a communication error between vehicle control modules.
U04E1
U04E1 indicates a communication malfunction between vehicle control modules.
U04E2
The U04E2 code indicates a communication error in the vehicle's telematics sy...
U04E3
U04E3 denotes a communication failure between the Vehicle Control Module and ...
U04E4
U04E4 indicates a communication error between vehicle modules.
U04E5
U04E5 indicates a communication failure between vehicle control modules.
U04E6
U04E6 indicates a communication error between control modules in your vehicle.
U04E7
U04E7 refers to a communication error between vehicle modules.
U04E8
DTC U04E8 indicates a communication issue between the Central Gateway Module ...
U04E9
DTC U04E9 means there is a communication issue between modules in your vehicle.
U04EA
U04EA indicates a communication failure between vehicle control modules.
U04EB
U04EB indicates a communication issue with the Battery Energy Control Module.
U04EC
U04EC indicates a communication error between vehicle control modules.
U04ED
U04ED indicates a loss of communication between vehicle control modules.
U04EE
U04EE indicates a communication failure with a control module in your vehicle.
U04EF
The U04EF code indicates a communication error between vehicle control modules.
U04F0
U04F0 indicates a communication error between vehicle control modules.
U04F1
DTC U04F1 signifies a communication issue between vehicle control modules.
U04F2
DTC U04F2 indicates a communication error between vehicle control modules.
U04F3
DTC U04F3 indicates a communication problem within the vehicle's control modu...
U04F4
U04F4 indicates a communication error between vehicle modules.
U04F5
DTC U04F5 indicates a communication error between vehicle modules.
U04F6
U04F6 indicates a communication failure between the transmission control modu...
U04F7
U04F7 signifies a communication error between vehicle control modules.
U04F8
U04F8 indicates a communication error between the BCM and PCM.
U04F9
The U04F9 code indicates a communication failure within the vehicle's electro...
U04FA
The U04FA code indicates a communication error between vehicle modules,
U04FB
U04FB indicates a communication error between the body control module and oth...
U04FC
U04FC indicates a communication error between vehicle control modules.
U04FD
U04FD indicates a communication failure in the Body Control Module.
U04FE
DTC U04FE indicates a communication failure between vehicle control modules.
U04FF
U04FF indicates a communication error between vehicle modules,
U0500
DTC U0500 indicates a communication malfunction in the vehicle's network of c...
U0501
U0501 indicates a communication failure on the vehicle's Bus 'A'.
U0502
U0502 indicates a communication failure with the Battery Energy Control Module.
U0503
DTC U0503 indicates a communication error between control modules in your veh...
U0504
U0504 indicates a communication failure between vehicle control modules.
U0505
U0505 indicates a communication failure between the Transmission Control Modu...
U0506
U0506 indicates a communication fault between vehicle modules,
U0507
U0507 indicates a communication error between control modules in your vehicle.
U0508
U0508 indicates a communication error between the engine and transmission con...
U0509
U0509 means there's a communication error between the TCM and ECM,
U050A
U050A refers to a communication issue between control modules in your vehicle...
U050B
U050B indicates a communication error between vehicle control modules.
U050C
U050C indicates a communication error between control modules,
U050D
U050D indicates a communication error between the transmission control module...
U050E
U050E indicates a communication issue between control modules in your vehicle.
U050F
U050F indicates a communication error between the ECM and BECM.
U0510
DTC U0510 signifies a communication error between vehicle control modules.
U0511
U0511 indicates a communication error between the vehicle's control modules r...
U0512
U0512 indicates a communication error between vehicle modules.
U0513
U0513 indicates a communication error between vehicle control modules.
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