The B1616 Code has different meanings and the meaning of the code based on the car model and manufacturer. You need to get the manual of the manual of the engine. The dictionary meaning of the code also helps to identify the problem of the engine. The dictionary meaning of the code is b means Body Code Problem is antilock brake system, electronic suspension and steering systems. 1 means MFG – Manufacturer Specific. 6 means Vehicle Speed Control and Idle Control System. 1 means Low Coolant Circuit and 6 means Cruise Control System – Vehicle Accel Too High. You do not try to solve the problem.