It is necessary to identify the meaning of the B1512 Code what has appeared from the error of engine. For solving the error of the engine and running the car properly, it is necessary to solve the problem and for this reason, get meaning of the code. The code meaning changes by the model and manufacturer of the car. It is necessary to read the manual. However, the dictionary meaning of the code is B is Body Code Problem is antilock brake system, electronic suspension and steering systems. 1 is MFG – Manufacturer Specific. 5 is Computer and Auxiliary Outputs. 1 is Low Coolant Circuit. 2 is A/C System High Pressure High Temperature.