The engine code is very helpful for solving the car engine problem but it is not easy to find. To get the engine code, it is necessary to test the car engine. However, the car engine needs to fix as soon as possible. The engine P1548 Code is found from the car by the test. The engine problem will be described by the engine code’s meaning. The car engine problem may start from variable cylinder management system. This problem should be fixed as soon as possible for enjoying a safe driving. The car engine should be checked by proper order.