U0074 Code: Meaning, Causes, and Symptoms | OBD2 Codes
U0074 – Control Module Communication Bus ‘B’ Off
U0074 Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
Control Module Communication Bus ‘B’ Off is the generic description for the U0074 code, but the manufacturer may have a different description. Currently we have no further information abouth the U0074 OBDII code.