When the engine of the car is not running properly, you need to solve the car engine. That is why, you should diagnosis the engine. The engine P0683 Code may come from the car engine on the engine code reader as a sign of the car engine problem. The right meaning of the code is necessary to solve the car engine and make sure that you have the right meaning of the code. Due to the wrong meaning of the code, the engine may get new problem what becomes terrible to solve. Relay on the automobile engineer for solving the car engine. Because an expert engineer knows the process of solving the car engine.