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 501-600 of 4097 total codes
U0XXX Network Communication Systems
U01F4
U01F4 indicates a communication error in the electric power steering system.
U01F5
U01F5 signifies a communication error between vehicle control modules.
U01F6
U01F6 indicates a communication issue between vehicle control modules.
U01F7
U01F7 indicates a communication error between vehicle control modules.
U01F8
Indicates a communication issue within the vehicle's network.
U01F9
U01F9 indicates a communication failure between vehicle modules.
U01FA
U01FA indicates a communication failure between vehicle control modules.
U01FB
U01FB indicates a communication failure with the Body Control Module.
U01FC
U01FC indicates a communication fault between control modules in your vehicle.
U01FD
U01FD indicates a communication failure within the vehicle's network,
U01FE
The U01FE code signifies a communication error between vehicle control modules.
U01FF
U01FF indicates a communication error between vehicle modules,
U0200
U0200 indicates lost communication between control modules in your vehicle.
U0201
U0201 indicates a communication breakdown between the ECM and TCM.
U0202
U0202 indicates a communication error between the ECM and TCM.
U0203
Indicates a lost communication issue between the Engine Control Module (ECM) ...
U0204
U0204 means there's a communication issue with the vehicle's control modules,...
U0205
U0205 indicates a communication issue between the ECM and TCM.
U0206
U0206 indicates a communication failure between vehicle control modules.
U0207
U0207 means lost communication with the transmission control module.
U0208
U0208 indicates a lost communication with the seat control module,
U0209
U0209 means there's a communication failure between the ECM and BCM.
U020A
U020A indicates a communication failure between the Engine Control Module and...
U020B
U020B signifies a communication failure between control modules in your vehicle.
U020C
U020C indicates a communication failure between the ECU and another vehicle c...
U020D
U020D signifies a communication problem between control modules.
U020E
U020E means there is a communication failure with the Vehicle Dynamics Contro...
U020F
U020F indicates a communication issue between control modules in your vehicle.
U0210
The U0210 code signifies a communication issue with the Vehicle Dynamic Contr...
U0211
U0211 indicates a communication error between control modules.
U0212
U0212 means there's a communication error between control modules.
U0213
U0213 indicates a communication failure between vehicle control modules.
U0214
DTC U0214 indicates a communication failure between vehicle control modules.
U0215
U0215 indicates a lost communication with the Body Control Module,
U0216
U0216 signifies lost communication between the ECM and BCM, impacting various...
U0217
DTC U0217 indicates a communication issue between the vehicle's control modul...
U0218
DTC U0218 signifies a communication failure within your vehicle's control mod...
U0219
U0219 indicates a communication failure between vehicle modules,
U021A
U021A indicates a communication error between control modules,
U021B
DTC U021B indicates a communication failure between the Engine Control Module...
U021C
U021C indicates a communication failure in the vehicle's CAN bus system,
U021D
U021D indicates a lost communication with the hybrid battery control module.
U021E
U021E means there's a lost communication with your fuel pump control module.
U021F
U021F means lost communication with the Battery Energy Control Module (BECM).
U0220
U0220 indicates a communication issue between vehicle modules,
U0221
U0221 indicates a communication failure with the Vehicle Dynamics Control Mod...
U0222
U0222 indicates a communication error in the vehicle's network.
U0223
U0223 signifies lost communication with the Body Control Module,
U0224
U0224 means there's a lost communication between the Engine Control Module an...
U0225
U0225 signifies a communication failure with the steering angle sensor module.
U0226
U0226 indicates a communication fault between vehicle modules,
U0227
DTC U0227 indicates a communication error within the vehicle's control modules.
U0228
U0228 signifies a communication failure in the power steering control module.
U0229
U0229 signifies a communication breakdown with the steering angle sensor.
U022A
U022A indicates a communication error between vehicle control modules.
U022B
DTC U022B indicates a communication failure between the body control module a...
U022C
U022C indicates a communication error with the instrument cluster.
U022D
U022D indicates a communication failure between vehicle control modules.
U022E
U022E represents a communication issue between the vehicle's ECM and audio am...
U022F
U022F indicates a communication failure with the steering column control module.
U0230
U0230 indicates a communication failure with the Vehicle Dynamics Control Mod...
U0231
DTC U0231 signifies a communication failure with a vehicle control module,
U0232
U0232 means there's a communication failure between the engine control module...
U0233
U0233 indicates a communication failure between the PCM and another module.
U0234
U0234 indicates a lost communication with the control module, affecting overa...
U0235
U0235 indicates a communication failure with the Vehicle Communication Interf...
U0236
U0236 indicates a communication failure with the seat control module.
U0237
U0237 signifies a communication failure between the Engine Control Module and...
U0238
U0238 means there is a communication failure with the Battery Energy Control ...
U0239
U0239 indicates a communication failure between the Engine Control Module and...
U023A
U023A indicates a communication failure with the Battery Energy Control Module.
U023B
U023B indicates a communication failure between the ECM and the fuel pump con...
U023C
DTC U023C indicates a communication failure with the driver side door module.
U023D
U023D indicates a communication error with the steering angle sensor.
U023E
U023E indicates a loss of communication with a vital vehicle communication in...
U023F
DTC U023F indicates a communication problem between your vehicle's control mo...
U0240
U0240 indicates a communication failure between control modules.
U0241
U0241 indicates a loss of communication with the ABS module, affecting vehicl...
U0242
U0242 indicates a communication error between vehicle control modules.
U0243
The U0243 code indicates a communication failure between the powertrain contr...
U0244
U0244 signifies a communication issue between vehicle control modules,
U0245
U0245 means there's a communication failure with the Vehicle Control Module A.
U0246
U0246 indicates a communication error with the Steering Angle Sensor.
U0247
U0247 indicates a communication loss with the Body Control Module.
U0248
DTC U0248 indicates a communication failure between the Engine Control Module...
U0249
U0249 indicates a lost communication issue between vehicle control modules,
U024A
U024A indicates a communication problem with the steering angle sensor.
U024B
U024B indicates a communication error between vehicle control modules.
U024C
The U024C code means there's a communication failure between the vehicle's co...
U024D
DTC U024D signifies a lost communication with the hybrid control module in ce...
U024E
U024E signifies a lost communication with vehicle control modules.
U024F
DTC U024F indicates a loss of communication with the steering angle sensor,
U0250
DTC U0250 signifies a communication failure with the Body Control Module (BCM).
U0251
U0251 indicates a communication error between control modules in your vehicle.
U0252
DTC U0252 signifies a loss of communication with a module in the vehicle's ne...
U0253
U0253 indicates a communication failure with the Body Control Module (BCM).
U0254
U0254 indicates a lost communication signal between the ECM and BCM.
U0255
The diagnostic trouble code (DTC) U0255 indicates a loss of communication wit...
U0256
DTC U0256 indicates a communication failure between the powertrain control mo...
U0257
U0257 indicates a communication issue with the power steering control module.
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