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 801-900 of 4097 total codes
U0XXX Network Communication Systems
U0320
U0320 means there's a communication failure with the Vehicle Dynamics Control...
U0321
U0321 indicates a communication error between the powertrain control module a...
U0322
The U0322 code indicates a communication failure between control modules in y...
U0323
Indicates a communication failure between the Engine Control Module (ECM) and...
U0324
DTC U0324 indicates a loss of communication with one or more vehicle control ...
U0325
DTC U0325 indicates a communication issue within the vehicle’s transmission c...
U0326
DTC U0326 signals a communication error between the power steering control mo...
U0327
DTC U0327 indicates a communication error between the battery energy control ...
U0328
DTC U0328 indicates a communication failure between control modules in your v...
U0329
DTC U0329 refers to a communication failure between the Engine Control Module...
U032A
U032A indicates a communication issue with a control module in your vehicle.
U032B
U032B indicates a communication issue between vehicle control modules,
U032C
U032C indicates a communication error between the steering angle sensor and t...
U032D
U032D indicates a communication issue within the vehicle's network.
U032E
U032E indicates a communication error within the vehicle's control modules re...
U032F
The U032F code signifies a communication issue between vehicle control modules.
U0330
DTC U0330 signifies a communication fault between vehicle control modules.
U0331
U0331 indicates a communication issue between vehicle control modules.
U0332
U0332 indicates a communication issue with the body control module.
U0333
The U0333 code signifies a communication error with the body control module.
U0334
U0334 indicates a communication error with the Body Control Module in your ve...
U0335
U0335 indicates a communication error with the body control module.
U0336
DTC U0336 indicates a communication error between the vehicle's control modules.
U0337
U0337 indicates a communication problem between the Body Control Module and o...
U0338
U0338 indicates a communication failure with the Battery Energy Control Module.
U0339
U0339 indicates a lost communication with the Body Control Module,
U033A
U033A indicates a communication failure between vehicle control modules,
U033B
U033B indicates a communication error between the Body Control Module and oth...
U033C
U033C indicates a communication error between vehicle control modules,
U033D
U033D indicates a communication error between vehicle modules.
U033E
The U033E code indicates a communication malfunction between the ECU and othe...
U033F
U033F indicates a communication failure between vehicle control modules,
U0340
U0340 indicates a communication error between the vehicle control module and ...
U0341
U0341 indicates a communication fault with the steering angle sensor.
U0342
U0342 indicates a communication issue between the ECM and other vehicle modul...
U0343
U0343 indicates a communication issue with the steering angle sensor,
U0344
DTC U0344 indicates an invalid signal from the steering angle sensor,
U0345
DTC U0345 indicates a communication error in the throttle actuator control sy...
U0346
U0346 indicates a communication failure between the hybrid control modules in...
U0347
U0347 indicates a communication error between the ECM and TCM.
U0348
U0348 indicates a communication problem between the steering angle sensor and...
U0349
U0349 signifies a communication failure between vehicle control modules,
U034A
The U034A code signals a communication error between the ECM and PCM.
U034B
DTC U034B indicates a communication error with the steering angle sensor.
U034C
U034C indicates a communication error with the steering angle sensor in your ...
U034D
U034D indicates a communication issue between the ECM and BCM related to the ...
U034E
U034E indicates a communication error between the ECM and TCM,
U034F
The U034F code signifies a communication error between the PCM and the steeri...
U0350
The U0350 code indicates a communication issue between vehicle control modules.
U0351
U0351 indicates a communication error between vehicle control modules.
U0352
U0352 indicates a communication failure with the Body Control Module.
U0353
U0353 indicates a communication failure between the ECM and steering angle se...
U0354
U0354 indicates a communication failure with the Body Control Module in your ...
U0355
U0355 indicates a communication fault with the steering angle sensor control ...
U0356
DTC U0356 indicates a communication error between control modules in your veh...
U0357
U0357 indicates a communication fault between your vehicle's control modules.
U0358
DTC U0358 means there is a loss of communication with the steering angle sensor.
U0359
U0359 indicates a communication problem between your vehicle's control module...
U035A
U035A indicates a communication issue between control modules in vehicles,
U035B
U035B indicates a communication error between control modules.
U035C
U035C indicates a communication failure with the steering control module.
U035D
U035D indicates a failure in communication between vehicle control modules.
U035E
U035E indicates a communication failure with the steering angle sensor module.
U035F
U035F indicates a communication error with the steering angle sensor.
U0360
U0360 is a communication error code indicating issues with vehicle modules,
U0361
DTC U0361 indicates a fault in communication with the steering control module.
U0362
U0362 indicates a communication error with the steering control module.
U0363
U0363 indicates a communication error with the power steering control module.
U0364
U0364 indicates a communication error between the body control module and oth...
U0365
U0365 indicates a communication problem within the vehicle's control module.
U0366
U0366 indicates a communication fault between vehicle control modules.
U0367
U0367 signifies a communication error between control modules in your vehicle.
U0368
U0368 indicates a communication error within your vehicle's electronic contro...
U0369
U0369 indicates a communication error between control modules in the vehicle,...
U036A
U036A indicates a malfunction in communication between vehicle control modules.
U036B
U036B indicates a communication issue with the steering angle sensor module.
U036C
U036C indicates a communication issue between vehicle control modules.
U036D
U036D indicates a communication failure between the steering control module a...
U036E
U036E indicates a communication error between vehicle control modules.
U036F
U036F indicates a communication failure between vehicle control modules.
U0370
U0370 indicates a communication error between control modules in your vehicle.
U0371
U0371 indicates a communication error between vehicle control modules.
U0372
U0372 indicates a communication error between control modules in your vehicle.
U0373
U0373 indicates a communication issue between the engine and transmission con...
U0374
U0374 indicates a communication error between vehicle modules.
U0375
DTC U0375 indicates a problem with the communication between the vehicle's co...
U0376
U0376 indicates a communication error between the ECM and TCM.
U0377
U0377 indicates a communication error between your vehicle's ECM and other mo...
U0378
DTC U0378 indicates a communication error with a control module,
U0379
U0379 indicates a communication error between control modules in the vehicle.
U037A
U037A indicates a communication error between vehicle ECUs.
U037B
U037B indicates an invalid data received from the PCM, often due to communica...
U037C
U037C indicates a communication failure between the ECM and TCM.
U037D
U037D indicates a communication failure between the Engine Control Module and...
U037E
The U037E code indicates a communication failure between the PCM and TCM.
U037F
U037F indicates a communication failure between control modules in your vehicle.
U0380
The U0380 code signifies invalid data received from the Body Control Module (...
U0381
U0381 indicates a communication issue between vehicle control modules.
U0382
U0382 indicates a communication error between the PCM and other control modules.
U0383
DTC U0383 indicates a communication error between vehicle control modules,
Page 9 of 41