The ODBII code U1863 indicates a failure in communication between modules in a vehicle’s network, suggesting that one or more electronic control units (ECUs) are unable to exchange data properly. The severity of ODBII code U1863 is moderate. Common Causes For: U1862 U1862: “Network Communication Line Fault” Faulty wiring or connectors Failed control module Corrupted…

The ODBII code U1864: CAN Bus Communication Failure indicates a problem with the communication between modules on the Controller Area Network (CAN) bus, suggesting that one or more modules are not able to send or receive data properly. The severity of ODBII code **U1864: CAN Bus Communication Failure** is generally considered moderate to severe. Common…

The ODBII code U1865 indicates a “Module Communication Failure,” meaning there is a problem with communication between the vehicle’s control modules, often due to a wiring issue, a faulty module, or a network problem. The severity of ODBII code U1865 is moderate. Common Causes For: U1863 U1863: “Inter-Module Communication Failure” Faulty wiring or connectors Failed…

The ODBII code U1866 indicates a failure in communication between modules in a vehicle’s network, suggesting that one or more electronic control units (ECUs) are unable to exchange data properly. The severity of ODBII code U1866 is moderate. Common Causes For: U1865 U1865: “Module Communication Failure” Faulty wiring or connectors Failed control module Corrupted software…

The ODBII code U1867 indicates a communication error on the CAN bus specifically related to the instrument cluster, suggesting that the instrument cluster is not receiving or sending data properly within the vehicle’s network. The severity of ODBII code **U1867: Instrument Cluster CAN Bus Communication Error** is generally considered moderate to severe. Common Causes For:…

The ODBII code U1868 indicates a “Module Communication Fault,” which means there is a communication issue between the vehicle’s control modules, preventing them from exchanging data properly. The severity of ODBII code U1868 is generally considered moderate. Common Causes For: U1866 U1866: “Inter-Module Communication Failure” Faulty wiring or connectors Failed control module Corrupted software in…

The ODBII code U1869 indicates a “Module Communication Line Fault,” which means there is a communication issue between the vehicle’s control modules, often due to a wiring problem, a faulty module, or interference in the communication network. The severity of ODBII code U1869 is moderate. Common Causes For: U1868 U1868: “Module Communication Fault” Faulty wiring…

The ODBII code U1870 indicates a communication issue between the transmission control module (TCM) and other control modules in the vehicle, suggesting a failure in data exchange or signal integrity. The severity of ODBII code U1870 is generally considered moderate to high. Common Causes For: U1869 U1869: “Module Communication Line Fault” Faulty Transmission Control Module…

The ODBII code U1871 indicates a communication failure between control modules in a vehicle, suggesting that one or more modules are not properly communicating with each other. The severity of ODBII code U1871 is moderate to severe. Common Causes For: U1870 refers to a communication issue between the transmission control module (TCM) and other control…

The ODBII code U1872 indicates a communication failure between control modules in a vehicle, suggesting that one or more modules are not able to exchange data properly. The severity of ODBII code U1872 is moderate. Common Causes For: U1871 U1871: Control Module Communication Failure Faulty wiring or connectors Failed control module Poor ground connections Corroded…