The code B1202 engine code comes for the error in engine and it is a kind of body problem. For the solution of the error code, you need to know the model of the car and manufacture. The B1202 Code has different meaning what is B for body code, 1 for MFG, 2 for BBV, 0 for Low Coolant Circuit and 2 for Transmission. The solution of the error code is deactivation of cylinders is reached by releasing a synchronizer pin that usually links the cam supporter and rocker arms. The B1202 code resolves the synchronizer pin is unrestricted using hydraulic compression which is skillful by a devoted solenoid.