U0003 Code: Meaning, Causes, and Symptoms | OBD2 Codes

U0003 – High Speed CAN Communication Bus (+) Open

 

U0003 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

U0003 Description

 

High Speed CAN Communication Bus (+) Open is the generic description for the U0003 code, but the manufacturer may have a different description. Currently we have no further information abouth the U0003 OBDII code.