The engine C1250 Code is an important thing and the real meaning of the code is necessary thing for solving the car engine problem. The automobile meaning of the code is not used for solving the car engine problem. The general meaning of the code is available online and it is C for Chassis Code Problem is controller area network wiring bus and modules. 1 for MFG – Manufacturer Specific. 2 for Accelerator Pedal Position (APP) Sensor 1 Performance. 5 for TP Sensor Learn Not Complete and 0 for Transmission Engaged At High Throttle Angle. Do not use this meaning for solving the car engine problem.