The dictionary meaning of the B2155 Code is B for Body Code – Problem is antilock brake system, electronic suspension and steering systems. 2 for MFG – Manufacturer Specific. 1 for Fuel and Air Metering. 5 for BBV Sensor Circuit Low Voltage and 5 for Cruise Inhibit Control Circuit. The body of the engine is easy to solve and you do not need to do anything if the problem of the engine is not solved. The body of the car engine can be solved by the engineer of the automobile. However, if you know how to fix the problem, you can try to solve it.