The automobile dictionary meaning of the code is used when the real meaning of the car engine code is not available. The car engine P1177 Code is also meaningful and it is important. The right meaning of the code is mainly allowable to use but automobile dictionary meaning of the code can be used when it is necessary. The automobile dictionary meaning is p for Powertrain Code Problem is related engine, transmission and emissions systems. 1 for MFG – Manufacturer Specific. 1 for Transmission. 7 for Vehicle Speed Output Circuit and 7 for Cruise Inhibit Control Circuit. When the car engine is ok, take it for a test drive.