U0056 Code: Meaning, Causes, and Symptoms | OBD2 Codes

U0056 – Vehicle Communication Bus D Performance

 

U0056 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

U0056 Description

 

Vehicle Communication Bus D Performance is the generic description for the U0056 code, but the manufacturer may have a different description. Currently we have no further information abouth the U0056 OBDII code.