The general meaning of the C1225 Code is available online but it is not used for solving the car engine. You should rely on the real meaning of the code what is set by the manufacturer. Every car manufacturers set meanings for the car engines. Do not use any general meaning or any manufacturer meaning for solving the engine problem. You need to get the real meaning of your car and it must be related with your car brand. The C1225 Code has arrived due to the chassis problem of the car engine problem. After fixing the car engine, take the car for a test.