The B1561 Code steer to identify the problem of the engine and solution of the problem is possible when the exact meaning of the code is known. The code has several meanings and to get the correct meaning of the code knowing the model number and manufacturer name is necessary. Read the manual of the code and thus you will get more information about the problem and solution. If you have all necessary tools and machineries, you can work for solve the problem of the engine. Due to the B from the code, it seems that problem of the code is started from the body of engine.