The error P258B Code comes when the car engine is tested and it is linked with the car engine. On different areas of the car engine, different car engine code is set and by the meaning of the code, it is easy to know the point of the car engine. For solving the car engine, the meaning of code is necessary to know. Do not allow any meaning of the code for identifying the car engine problem. Th real meaning of the code helps in this issues to solve the car engine problem. Because the same car engine code is available in different car engines but meanings are different.