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)
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.