This engine P2252 Code plays very important role for identifying the car engine problem and location of the engine problem. Fix the car engine according to the meaning of the car engine code. The automobile dictionary meaning of the code may also help in this issue. The automobile dictionary meaning of the code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 2 for Accelerator Pedal Position (APP) Sensor 1 Performance. 5 for TP Sensor Learn Not Complete and 2 for A/C System High Pressure High Temperature. Now it becomes easier to know solve the car engine.