The powertrain of the car engine is very important part what you cannot ignore. The meaning of the car engine P3452 Code is necessary to know. You may use the general meaning of the code and it is important to understand the problem of the car engine. You should fix the car engine by this general meaning and it is p for Powertrain Code Problem is related engine, transmission and emissions systems. 3 for SAE – Generic. 4 for Transmission. 5 for TP Sensor Learn Not Complete and 2 for A/C System High Pressure High Temperature. When you know the right meaning of the code, you will get better solution for your car engine.