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 1101-1200 of 4097 total codes
U0XXX Network Communication Systems
U044C
U044C indicates a communication failure between control modules in your vehicle.
U044D
U044D indicates a communication failure between vehicle control modules.
U044E
U044E indicates a communication error between vehicle control modules.
U044F
U044F indicates a communication malfunction between vehicle control modules.
U0450
DTC U0450 indicates a communication error between vehicle control modules.
U0451
U0451 indicates a communication error between vehicle control modules.
U0452
U0452 indicates a communication error between control modules in your vehicle.
U0453
U0453 indicates a communication problem within the vehicle's electronic contr...
U0454
U0454 signifies a lost communication issue between vehicle control modules.
U0455
DTC U0455 signifies a communication error between vehicle control modules.
U0456
U0456 indicates a communication fault between control modules in your vehicle.
U0457
U0457 indicates a communication error in the electric power steering system.
U0458
U0458 means there's a communication issue between the vehicle's control modules.
U0459
U0459 indicates invalid data received from a vehicle control module,
U045A
U045A signifies a communication issue between vehicle control modules.
U045B
U045B indicates a communication error between control modules in your vehicle.
U045C
U045C indicates a communication failure between vehicle control modules.
U045D
U045D indicates a communication issue within the vehicle's data bus.
U045E
DTC U045E signifies a communication failure between vehicle control modules.
U045F
U045F indicates a communication error between vehicle control modules.
U0460
DTC U0460 indicates a communication issue between control modules in your veh...
U0461
DTC U0461 indicates a communication error within the vehicle's control modules.
U0462
DTC U0462 indicates a communication error within the vehicle’s control modules.
U0463
U0463 indicates a communication failure between vehicle control modules.
U0464
DTC U0464 signifies a communication error in the electric power steering system.
U0465
U0465 indicates a communication error between vehicle control modules.
U0466
U0466 indicates a communication error between vehicle control modules.
U0467
U0467 indicates a communication error between vehicle control modules.
U0468
DTC U0468 indicates an invalid data transmission issue from the vehicle contr...
U0469
Indicates and how to resolve it quickly.
U046A
The U046A code indicates a communication error between vehicle control module...
U046B
U046B indicates a communication failure with the battery energy control module.
U046C
U046C indicates a communication failure between vehicle control modules,
U046D
U046D indicates a communication error between vehicle control modules,
U046E
The U046E code signifies a communication error between control modules in you...
U046F
U046F indicates a communication failure between the vehicle's control modules.
U0470
U0470 indicates a communication error in the vehicle's communication bus,
U0471
DTC U0471 indicates a communication failure with the steering angle sensor in...
U0472
DTC U0472 indicates a communication failure with the steering angle sensor.
U0473
U0473 indicates a communication failure between the ECM and the fuel pump con...
U0474
The diagnostic trouble code (DTC) U0474 indicates a communication error betwe...
U0475
U0475 indicates a lost communication with the Battery Energy Control Module (...
U0476
U0476 indicates a communication error between control modules in your vehicle.
U0477
DTC U0477 indicates a communication failure between vehicle control modules.
U0478
DTC U0478 indicates a communication error between vehicle modules.
U0479
U0479 indicates a communication fault between the ECM and FPCM.
U047A
U047A indicates a communication error between vehicle control modules.
U047B
DTC U047B indicates a communication failure between the fuel pump control mod...
U047C
U047C indicates a communication issue between the fuel pump control module an...
U047D
U047D indicates a communication error between vehicle modules,
U047E
U047E indicates a communication failure between the Engine Control Module and...
U047F
U047F indicates a communication failure between the body control module and o...
U0480
DTC U0480 indicates a communication error between vehicle control modules,
U0481
U0481 is a diagnostic trouble code indicating a communication failure between...
U0482
U0482 indicates a communication error between vehicle control modules.
U0483
Indicates a communication issue between the vehicle's control modules,
U0484
U0484 signifies a communication error between control modules,
U0485
U0485 indicates an invalid data reception issue between vehicle control modules.
U0486
The U0486 code signifies a communication failure between vehicle modules.
U0487
U0487 indicates a communication error between vehicle control modules.
U0488
U0488 indicates a communication error between the vehicle control module and ...
U0489
U0489 indicates a communication fault between control modules in the vehicle.
U048A
U048A indicates a communication error between vehicle control modules.
U048B
U048B indicates an issue with the vehicle communication bus, affecting module...
U048C
U048C indicates a communication error between vehicle control modules,
U048D
U048D indicates a communication issue between vehicle control modules.
U048E
U048E indicates a communication failure between vehicle control modules.
U048F
U048F indicates a communication problem between vehicle control modules,
U0490
U0490 indicates invalid data received from the Body Control Module.
U0491
DTC U0491 signifies a communication issue between vehicle control modules,
U0492
DTC U0492 indicates that invalid data is being received from a vehicle contro...
U0493
U0493 indicates invalid data received from a control module in your vehicle.
U0494
DTC U0494 indicates a communication error between vehicle modules.
U0495
The U0495 code indicates a communication error between vehicle control modules.
U0496
DTC U0496 signifies a communication failure with the Body Control Module.
U0497
DTC U0497 indicates a communication issue with the brake control module,
U0498
U0498 indicates a communication error between control modules in your vehicle.
U0499
U0499 indicates an invalid data signal from the body control module.
U049A
U049A indicates a communication error between vehicle control modules.
U049B
U049B indicates a communication error between vehicle control modules.
U049C
U049C indicates a communication issue within the vehicle's network,
U049D
U049D signifies a communication error between control modules in your vehicle.
U049E
U049E indicates a communication error between control modules in your vehicle.
U049F
The U049F code signifies a communication issue between vehicle control modules.
U04A0
U04A0 indicates a communication issue between vehicle control modules,
U04A1
U04A1 indicates a communication issue between vehicle control modules.
U04A2
U04A2 signifies a communication error between vehicle modules,
U04A3
U04A3 indicates a communication error between vehicle modules.
U04A4
U04A4 indicates a communication error between control modules in hybrid vehic...
U04A5
U04A5 indicates a communication failure between vehicle control modules.
U04A6
U04A6 indicates a communication problem between control modules in your vehicle.
U04A7
U04A7 indicates a communication error between electronic modules in your vehi...
U04A8
DTC U04A8 indicates a communication issue within the vehicle's network.
U04A9
U04A9 indicates a communication failure between vehicle control modules.
U04AA
U04AA indicates a communication issue between vehicle control modules.
U04AB
U04AB indicates a communication issue in the vehicle's network,
U04AC
U04AC indicates a communication error in the vehicle's CAN bus system,
U04AD
U04AD indicates a communication issue between the body control module and oth...
U04AE
The U04AE code indicates a communication error between vehicle control modules.
U04AF
U04AF indicates a communication error between vehicle modules,
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