The B1912 Code is correlated with the car engine and when the car engine face any problem and the car engine tested by the code reader, then code B1912 comes by the code reader. It is failed to check the code B1912 area. You need to resolve the problem from the engine and make the car engine running on the road. The correct meaning of this code is necessary to know for solving the problem. The dictionary meaning of the code let you know some information of the problem. You should know the manufacturer name and model to identify the real meaning of the code.