The engine code is important thing and this engine P1507 Code is found for the checking the car engine. This code is used for solving the car engine problem. The meaning of the code is used for solving the car engine and always prefer the right meaning of the code. You can use the automobile dictionary meaning of the code when the right code is not found. Automobile dictionary meaning of the code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 1 for MFG – Manufacturer Specific. 5 for Computer And Auxiliary Outputs 0 IC Circuit High Voltage and 7 for Cruise Inhibit Control Circuit.