U0103
Lost Communication With Gear Shift Module
Network Code · High
What does U0103 mean?
Communication with the gear shift control module has been lost.
System: Module Communication
U0103 is a network diagnostic trouble code indicating lost communication with gear shift module. This code is classified as high severity, which means: address soon — may cause further damage.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your vehicle.
