The meaning of the engine P0147 Code is P for Powertrain Code Problem is related engine, transmission and emissions systems. 0 for SAE – Generic. 1 for Transmission. 4 for BBV Sensor Circuit Low Voltage and 7 for Cruise Inhibit Control Circuit. You need to find the real meaning of the engine code for using it for fixing the car engine problem. The engine problem is easy to solve for the automobile engineer if the problem is powertrain problem. It is also important to know the exact reason of the problem. There are several reasons of the engine problem and diagnosis is compulsory to know the reason of the problem.