The car engine problem should be fixed properly and for solving the car engine problem properly, real meaning of the car engine P1139 Code is necessary to know. The real meaning of the code is related with your car and car manufacturer. So, when you look for the real meaning of the code, you need to know the real name of the car and manufacturer. The automobile dictionary meaning of the code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 1 for MFG – Manufacturer Specific. 1 for Transmission. 3 for Cruise Control Servo Indicates Low and 9 for Kick-Down Switch Failed Short.