The automobile dictionary meaning of the engine P1223 Code is important thing for solving the car engine. Here, the powertrain problem is faulty and need to know the rest of the car engine code meaning for solving the car engine. When necessary to use automobile dictionary meaning, you can use. The automobile dictionary meaning is p for Powertrain Code Problem is related engine, transmission and emissions systems. 1 for MFG – Manufacturer Specific. 2 for Accelerator Pedal Position (APP) Sensor 1 Performance. 2 for Air Conditioning (A/C) Clutch Feedback Circuit High Voltage and 3 for Transmission Control Module Reprogrammable Memory.