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 5001-5100 of 8192 total codes
U1XXX Network Communication Systems
U1388
U1388 indicates a communication issue between the ECM and other modules.
U1389
U1389 indicates a communication loss between the Body Control Module and Inst...
U138A
U138A indicates a communication fault between control modules in your vehicle.
U138B
U138B signifies a communication error between vehicle control modules.
U138C
The U138C code indicates a communication error within the vehicle's control m...
U138D
U138D indicates a communication fault in the vehicle's network.
U138E
U138E signifies a communication error between control modules.
U138F
U138F indicates a communication issue within the vehicle's network,
U1390
The U1390 code indicates a communication issue between vehicle control modules.
U1391
U1391 indicates a communication issue within your vehicle's network.
U1392
U1392 indicates a communication issue between vehicle control modules.
U1393
U1393 indicates communication issues within the vehicle's electrical system,
U1394
U1394 indicates a communication issue between vehicle control modules,
U1395
U1395 signifies a communication error within the vehicle's network,
U1396
U1396 indicates a communication fault between vehicle control modules,
U1397
U1397 is a communication error between control modules, often indicating a fa...
U1398
U1398 indicates a communication error between vehicle modules.
U1399
U1399 indicates a communication error between control modules in the vehicle.
U139A
U139A indicates a communication issue between the BCM and PCM.
U139B
U139B indicates a communication problem between vehicle control modules.
U139C
DTC U139C indicates a communication failure between the PCM and other control...
U139D
U139D indicates a communication issue between control modules in your vehicle.
U139E
U139E indicates a communication problem between control modules in your vehicle.
U139F
U139F indicates a communication error between vehicle control modules.
U13A0
U13A0 indicates a communication error in the vehicle's network system,
U13A1
U13A1 indicates a communication failure between the Body Control Module and o...
U13A2
U13A2 indicates a communication issue with the body control module in your ve...
U13A3
The U13A3 code indicates a communication failure in the vehicle's stability c...
U13A4
U13A4 indicates a communication loss between vehicle control modules,
U13A5
U13A5 indicates a low-speed CAN communication issue in your vehicle.
U13A6
U13A6 indicates a communication link fault in your vehicle’s network,
U13A7
U13A7 indicates a communication line failure between control modules in your ...
U13A8
U13A8 indicates a communication fault between the vehicle's electronic modules.
U13A9
U13A9 indicates a communication fault within the vehicle's network system.
U13AA
U13AA indicates a communication error in the vehicle's ADAS systems.
U13AB
U13AB indicates a communication fault within the car's CAN system.
U13AC
The U13AC code signifies a communication failure in the battery management sy...
U13AD
U13AD indicates a communication error between the Transmission Control Module...
U13AE
U13AE indicates a communication error between the Engine Control Module and B...
U13AF
U13AF indicates a communication error within the vehicle's body control module.
U13B0
U13B0 indicates loss of communication with the Body Control Module (BCM).
U13B1
U13B1 indicates a communication issue within the vehicle's module network.
U13B2
U13B2 signifies a communication error in the vehicle's network,
U13B3
U13B3 indicates a communication circuit issue between control modules in your...
U13B4
U13B4 indicates a communication malfunction between vehicle control modules.
U13B5
U13B5 indicates a communication error between control modules,
U13B6
U13B6 signals a communication error between the hybrid powertrain control mod...
U13B7
U13B7 indicates a communication issue within the vehicle's hybrid control sys...
U13B8
U13B8 indicates a communication issue within the vehicle's control modules,
U13B9
U13B9 indicates a communication failure within the vehicle's CAN system,
U13BA
U13BA indicates a communication error within the vehicle's electronic systems.
U13BB
U13BB indicates a communication issue with the body control module,
U13BC
U13BC indicates a communication issue within the vehicle's power management s...
U13BD
U13BD is a diagnostic trouble code indicating a communication failure among v...
U13BE
U13BE indicates a communication issue in the Battery Energy Control Module.
U13BF
U13BF indicates a communication fault between control modules in your vehicle.
U13C0
U13C0 is a communication error code indicating a failure in the vehicle's con...
U13C1
DTC U13C1 signifies a communication error between vehicle control modules.
U13C2
DTC U13C2 signifies a communication error within the steering column control ...
U13C3
DTC U13C3 indicates a communication error in the vehicle's control modules,
U13C4
U13C4 indicates a communication error with the steering wheel control module.
U13C5
U13C5 indicates a communication error between vehicle control modules.
U13C6
U13C6 indicates a communication error in the vehicle's wireless control systems.
U13C7
U13C7 indicates a communication error between vehicle control modules,
U13C8
Indicates the driver may experience erratic instrument readings or even a com...
U13C9
U13C9 indicates a communication error in the hybrid battery system,
U13CA
U13CA indicates a communication issue within the vehicle's electronic systems...
U13CB
U13CB indicates a communication failure in the hybrid control system of your ...
U13CC
U13CC indicates a communication failure between the body control module and o...
U13CD
The U13CD code indicates a communication fault in the vehicle's control modules.
U13CE
U13CE indicates a communication error within the vehicle's control modules.
U13CF
U13CF indicates a communication error between vehicle modules.
U13D0
A communication error within the vehicle's network system.
U13D1
U13D1 signifies a communication failure between the Body Control Module and o...
U13D2
U13D2 indicates a communication error within the vehicle's electronic control...
U13D3
U13D3 indicates a communication issue within the vehicle's body control modul...
U13D4
U13D4 indicates a communication error between control modules in your vehicle.
U13D5
U13D5 indicates a communication error in the vehicle's data bus.
U13D6
U13D6 indicates a communication error between control modules in your vehicle.
U13D7
U13D7 indicates a communication failure between vehicle modules.
U13D8
U13D8 signifies a communication error with the gateway module.
U13D9
U13D9 indicates a communication issue within the vehicle's network,
U13DA
U13DA indicates a communication failure within the vehicle's network,
U13DB
U13DB indicates a communication issue within the vehicle's control modules.
U13DC
U13DC indicates a communication failure between the ECU and other vehicle mod...
U13DD
U13DD indicates a communication error between vehicle modules,
U13DE
U13DE signals a communication failure within the vehicle's control network.
U13DF
The U13DF diagnostic trouble code (DTC) indicates an issue with the communica...
U13E0
U13E0 represents a communication error between control modules in the vehicle.
U13E1
U13E1 indicates a communication failure between control modules in your vehicle.
U13E2
U13E2 indicates a communication failure between control modules in your vehicle.
U13E3
Indicates a communication issue within the vehicle’s network.
U13E4
Indicates a malfunction in the communication line, which can lead to various ...
U13E5
DTC U13E5 indicates a communication issue between vehicle control modules.
U13E6
DTC U13E6 indicates a communication error between vehicle control modules,
U13E7
DTC U13E7 indicates a communication issue between control modules,
U13E8
Indicates a communication issue within the vehicle's network, particularly re...
U13E9
U13E9 indicates a communication error between modules in your vehicle,
U13EA
U13EA indicates a communication issue with the body control module in your ve...
U13EB
U13EB indicates a communication issue between vehicle modules.
Page 51 of 82