The B1652 Code is involved with the car engine and if you want to solve the problem, you identify the exact meaning of the code. That is why, you have to know the model number and manufacturer name. The main system turned off reverse pairs of cylinders what is allowing the engine to have 3 dissimilar outlines and shifts. The B1652 code had an elaborate diagnostics technique, counting showing engine error codes on the air conditioning display. However, the system was worrying, misinterpreted by customers, and a rash of changeable failures led to the knowledge being rapidly retired. Test drive is important.