You need to fix the car engine and the car engine P2715 Code is found in the car engine. It helps to fix the car engine properly. The powertrain problem is found in your car engine. However, you must fix the car engine properly and if you are not the right person for solving the car engine, you appoint an automobile engineer for solving the car engine. 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. 7 for Auxiliary Emission Controls. 1 for Low Coolant Circuit and 5 for Park/Neutral Position (PNP) Switch Circuit Engine Torque Signal Circuit.