The engine B1672 Code is found when the engine is diagnosed. You need to solve the problem of the engine problem if you get the meaning of the code. Since, the same code has different meanings, so you need to get the accurate meaning for this code. The dictionary meaning also helps to identify the meaning of the code. The dictionary meaning is B for Body Code Problem is antilock brake system, electronic suspension and steering systems. 1 for MFG – Manufacturer Specific. 6 for Vehicle Speed Control and Idle Control System. 7 for Vehicle Speed Output Circuit and 2 for A/C System High Pressure High Temperature.