What does code U0404 mean?

Invalid Data Received From Gear Shift Module: The vehicle is receiving invalid data from the gear shift module.

U0404 is rated as high severity. Address soon — may cause further damage.

U0404

Invalid Data Received From Gear Shift Module

Network Code · High

What does U0404 mean?

The vehicle is receiving invalid data from the gear shift module.

System: Module Communication

U0404 is a network diagnostic trouble code indicating invalid data received from 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.