The defective B1564 Code is set for car engine and if you want to eliminate the code, it is essential to solve the problem. You have to know the meaning of the code and you have to get the name of the manufacturer and model. The dictionary meaning of the code is B for Body Code Problem is antilock brake system, electronic suspension and steering systems. 1 for MFG – Manufacturer Specific. 5 for Computer and Auxiliary Outputs. 6 for Control Module Throttle Actuator Position Performance. 4 for Cruise Vehicle Speed and Set Speed Difference Too High. It seems that the problem has started from body of engine.