The general meaning of the B2456 Code is not necessary to use for the car engine but you need to get the real meaning of the code. This code has dictionary and manufacturer meanings but the general meaning of the code gives general information and it is not helpful at all. The dictionary meaning of the code is easy to get and you need to seek that online. You can use Google for searching that name. The manufacturer information about the code is real and for solving the car engine, you need to use that meaning. Do not drive the car until you get the car after fixing.