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 5701-5800 of 8192 total codes
U1XXX Network Communication Systems
U1644
U1644 indicates a communication fault in the CAN bus system, affecting module...
U1645
U1645 indicates a communication error between vehicle modules,
U1646
U1646 indicates a communication failure between vehicle control modules.
U1647
U1647 indicates a communication error in the vehicle's electronic control units.
U1648
U1648 indicates a communication error among vehicle control modules.
U1649
U1649 indicates a communication fault within vehicle control modules.
U164A
Indicates a communication issue between the body control module (BCM) and oth...
U164B
U164B indicates a communication error between control modules in your vehicle.
U164C
U164C signifies a communication fault between control modules in your vehicle.
U164D
U164D indicates a communication fault between the body control module and oth...
U164E
U164E indicates a communication failure between the body control module and o...
U164F
U164F indicates a communication failure in the vehicle's network,
U1650
U1650 indicates a communication issue between vehicle control modules.
U1651
U1651 indicates a communication error between vehicle control modules.
U1652
DTC U1652 represents a communication error between control modules in your ve...
U1653
U1653 means there's a communication problem between vehicle control modules.
U1654
U1654 indicates a communication failure between vehicle modules.
U1655
U1655 means there's a communication error in the vehicle's network,
U1656
U1656 indicates a communication error between control modules,
U1657
U1657 indicates a communication failure between vehicle control modules.
U1658
DTC U1658 signifies a communication error between vehicle control modules.
U1659
U1659 indicates a communication error among the vehicle's ECUs.
U165A
U165A indicates a communication failure with the Battery Energy Control Module.
U165B
U165B indicates a communication issue between control modules.
U165C
U165C signifies a communication error in the vehicle's CAN bus system.
U165D
U165D signifies a communication fault between vehicle control modules,
U165E
U165E indicates a communication issue between vehicle modules.
U165F
U165F indicates a communication fault between control modules.
U1660
U1660 indicates a communication error between modules in your vehicle's network.
U1661
U1661 signifies a communication failure with the Instrument Panel Cluster.
U1662
DTC U1662 signifies a communication error between vehicle control modules,
U1663
U1663 indicates a communication failure with the Accessory Protocol Interface...
U1664
U1664 indicates a communication failure between vehicle modules.
U1665
U1665 indicates a communication error between vehicle control modules.
U1666
U1666 indicates a communication fault between control modules in your vehicle.
U1667
U1667 indicates a communication error between the vehicle control module and ...
U1668
U1668 indicates a communication issue between vehicle control modules.
U1669
U1669 indicates a communication failure between vehicle modules.
U166A
U166A indicates a communication issue between control modules in your vehicle.
U166B
U166B indicates a communication failure with the Battery Energy Control Module.
U166C
U166C indicates a communication problem between the BCM and TCM.
U166D
U166D signifies a communication error between control modules in your vehicle.
U166E
DTC U166E indicates a communication problem between the vehicle's electronic ...
U166F
U166F indicates a communication error between control modules in your vehicle.
U1670
U1670 indicates a communication issue within the vehicle’s control modules,
U1671
DTC U1671 indicates a communication error in the vehicle's Body Control Modul...
U1672
U1672 means there's a communication issue between your vehicle's control modu...
U1673
U1673 signifies a communication fault in the vehicle's control modules,
U1674
U1674 indicates a communication error among control modules in your vehicle.
U1675
DTC U1675 signifies a communication error between the body control module and...
U1676
U1676 indicates a communication error within the vehicle's network,
U1677
U1677 indicates a communication error between the ECM and TCM.
U1678
U1678 indicates a communication error between control modules in your vehicle.
U1679
DTC U1679 indicates a communication issue between the Body Control Module and...
U167A
U167A indicates a communication error between vehicle control modules.
U167B
U167B indicates a communication issue with the power steering control module.
U167C
U167C indicates a communication error between the Body Control Module and oth...
U167D
U167D indicates a communication error within the vehicle's network.
U167E
U167E indicates a communication issue between vehicle modules.
U167F
U167F indicates a communication problem between your vehicle's control modules.
U1680
U1680 indicates a communication error in the vehicle's network.
U1681
The U1681 code indicates a communication issue within the vehicle's onboard s...
U1682
U1682 indicates a communication error between vehicle control modules.
U1683
U1683 is a communication error code indicating issues with the vehicle's body...
U1684
U1684 signifies a communication failure in the vehicle's network,
U1685
U1685 indicates a communication error between vehicle control modules.
U1686
U1686 indicates a communication error within the vehicle's network,
U1687
U1687 indicates a communication error between the Body Control Module and the...
U1688
U1688 signifies a communication issue among the vehicle's control modules.
U1689
U1689 indicates a communication failure within the vehicle's body control mod...
U168A
U168A indicates a communication problem between vehicle control modules.
U168B
U168B indicates a communication error between control modules in your vehicle.
U168C
U168C indicates a communication issue between the vehicle's control modules,
U168D
U168D indicates a communication failure between the vehicle's electronic cont...
U168E
DTC U168E refers to a communication error between vehicle modules,
U168F
The U168F code indicates a communication error between vehicle modules,
U1690
U1690 indicates a communication failure between vehicle control modules.
U1691
U1691 indicates a communication issue between vehicle control modules.
U1692
DTC U1692 indicates a communication problem between the body control module a...
U1693
DTC U1693 indicates a LIN communication issue within the vehicle's network.
U1694
U1694 indicates a communication error between vehicle control modules.
U1695
U1695 signifies a communication fault in the vehicle's electronic control units.
U1696
U1696 indicates a communication failure between vehicle control modules.
U1697
U1697 indicates a communication fault in the vehicle's network,
U1698
DTC U1698 signifies a communication error between vehicle control modules.
U1699
DTC U1699 denotes a communication error in the vehicle's control modules.
U169A
The U169A code indicates a communication error between vehicle control modules.
U169B
U169B means a communication issue between vehicle control modules,
U169C
U169C indicates a communication failure between vehicle modules.
U169D
U169D indicates a communication error in vehicle control modules.
U169E
U169E indicates a communication issue between your vehicle's electronic contr...
U169F
U169F indicates a communication failure between vehicle control modules.
U16A0
DTC U16A0 indicates a communication failure between the body control module a...
U16A1
U16A1 indicates a communication failure between vehicle control modules.
U16A2
U16A2 means there's a communication problem between control modules in your v...
U16A3
The diagnostic trouble code U16A3 indicates a communication error between mul...
U16A4
U16A4 indicates a communication fault within the vehicle's control modules.
U16A5
U16A5 indicates a communication fault between vehicle control modules.
U16A6
U16A6 indicates a communication issue within the vehicle's network,
U16A7
The U16A7 code indicates a communication issue within the vehicle's Body Cont...
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