The general meaning of the car engine P2825 Code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 8 for Ignition System Or Misfire 2 for Air Conditioning (A/C) Clutch Feedback Circuit High Voltage 5 for Park/Neutral Position (PNP) Switch Circuit Engine Torque Signal Circuit. Read the manual of the car engine to know the real meaning of the car engine code for solving the car engine problem. If the real meaning of the code is found, then you may depend on the general meaning for solving the car engine problem.