The engine P2573 Code lets you correct information about the car engine problem if you use right meaning of the code. The right meaning is more than the general meaning. When you do not have the right meaning of the code, you may use the automobile dictionary meaning and it is p for Powertrain Code Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 5 for Computer And Auxiliary Outputs. 7 for Vehicle Speed Output Circuit and 3 for Transmission Control Module Reprogrammable Memory. You must not use meaning of the code from different car manufacturer.