The alphabet B from the engine B2440 Code means body. It means body of the engine has the problem. This problem is identified as general sense but it is not important thing for solving the car engine. The manufacturer of the car set a meaning of the code and the automobile engineer needs to use that car engine meaning for solving the problem from the car engine. The general meaning of the code is common thing and it is not suitable for solving the car engine problem. You need to get the manufacturer meaning for solving the car engine. Now it is easy to fix the problem if all machines and information are available.