The B2252 Code explains the problem of the car engine and it is area code of the engine. When the engine code reader fails to read the area, then the code comes. The original meaning of the code is connected the manufacturer and model of the car engine. You will get the general meaning of the code online and it is very easy. In the manual of the router, you will get the information for solving the car engine. If you have all necessary tools and machines for solving the car engine, you can try to solve the problem from the car engine.