The automobile dictionary meaning of the engine P0209 Code and that is p for Powertrain Code – Problem is related engine, transmission and emissions systems. 0 for SAE – Generic. 2 for Computer And Auxiliary Outputs. 0 for Air Conditioning (A/C) Clutch Feedback Circuit High Voltage and 9 for A/C System High Pressure High Temperature. For fixing the car engine problem, no part is necessary to change or replace. The car service manual should be checked for more information on conceivable reasons of the fault, along with compulsory testing. If you do not know how to solve the car engine problem, do not try to fix the car engine by yourself.