What does code U0008 mean?

High Speed CAN Communication Bus (-) High: The CAN bus low wire has high voltage.

U0008 is rated as high severity. Address soon — may cause further damage.

U0008

High Speed CAN Communication Bus (-) High

Network Code · High

What does U0008 mean?

The CAN bus low wire has high voltage.

System: CAN Bus

U0008 is a network diagnostic trouble code indicating high speed can communication bus (-) high. 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.