The B2453 Code is found when the car engine is tested and you need to get the real meaning of the code for the code for solving the problem. The dictionary meaning of the code is not everything for solving the car. You need to get the manufacturer information. The original multi-displacement system turned off conflicting pairs of cylinders, permitting the engine to have 3 dissimilar configurations and displacements. The engine B2453 code had an extravagant diagnostics procedure, counting showing engine codes on the air conditioning display. However, the system was troublesome, misunderstood by customers, and a rash of unpredictable letdowns led to the technology being rapidly retired.