The B1383 Code appears for the problem of the engine and the error seems on the body. The B1377 Code has different meanings and to know the meaning, it is necessary to read the manual. However, it is also necessary to know the model and manufacture. However, for fixing the problem, you should depend on the professionals. Do not work by yourself if you do not know how to fix the problem and if you do not have all necessary tool for fixing the problem. The code of the engine has dictionary meaning and it is easy to know to solve the problem.