The B2455 Code is necessary thing for solving the car engine and when the car engine does not work properly, you need to check the engine and then the code may come up. The dictionary meaning of the code B for Body Code Problem is antilock brake system, electronic suspension and steering systems. 2 for MFG – Manufacturer Specific. 4 for Transmission. 5 for TP Sensor Learn Not Complete. 5 for Park/Neutral Position (PNP) Switch Circuit Engine Torque Signal Circuit. The general information of the code is not important thing but for getting knowledge, you can study the general meaning of the code.