The automobile meaning of the P0111 Code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 0 for SAE – Generic. 1 for Transmission. 1 for Low Coolant Circuit and 1 for TFP Valve Position Switch-Drive Without Drive Ratio. The car engine P0111 code seems a sort of powertrain problem and it is easy to fix. There are some reason of the car engine problem and by the proper diagnosis, it is easy to fix the car engine problem. Do not follow wrong meaning of the code and if you solve the car engine, you have to have all experience.