You need to know the meaning of the B1779 Code and you need to know manufacturer name and model number for solving the problem from the engine. However, the code has dictionary meaning and it is necessary to know for solving the problem. The dictionary meaning of this code is B for Body Code Problem is antilock brake system, electronic suspension and steering systems. 1 for MFG – Manufacturer Specific. 7 for Auxiliary Emission Controls. 7 for Vehicle Speed Output Circuit and 8 for PCM Stack Overrun. As the dictionary meaning says that body of the engine has the problem, so it is easy to solve.