U0066 Code: Meaning, Causes, and Symptoms | OBD2 Codes
U0066 – Vehicle Communication Bus E (+) Open
U0066 Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
Vehicle Communication Bus E (+) Open is the generic description for the U0066 code, but the manufacturer may have a different description. Currently we have no further information abouth the U0066 OBDII code.