You need to solve the meaning of the B1797 Code and the B1797 engine code appears a kind of body problem and it is very easy to solve. By the minimum price, you can solve the problem of the engine. The dictionary meaning of the code is deactivation of cylinders is attained by discharging a synchronizer pin that usually interlocks the cam follower and rocker arms. The B1797 code solves the synchronizer pin is released using hydraulic compression which is measured by a devoted solenoid. You have to solve the problem from the engine and after fixing the problem, take the car for test drive.