The automobile dictionary has a meaning of the B2558 Code and the meaning of the code is found online. The automobile dictionary meaning is B for Body Code Problem is antilock brake system, electronic suspension and steering systems. 2 for MFG – Manufacturer Specific. 5 for Computer And Auxiliary Outputs. 5 for TP Sensor Learn Not Complete and 8 for PCM Stack Overrun. Your car manufacturer put a specific meaning of the code and you need to get that meaning for solving the car engine. There are different problems occur due to using the false meaning of the code. Do not drive the car until you get solved car.