Getting the real meaning of the B2102 Code is important thing but you may use the dictionary meaning of the code what helps you little. The dictionary meaning is available online. For this code, the dictionary meaning is B for Body Code – Problem is antilock brake system, electronic suspension and steering systems. 2 is MFG – Manufacturer Specific. 1 is Fuel and Air Metering. 0 is Air Conditioning Clutch Feedback Circuit High Voltage and 2 for Kick-Down Switch Failed Short. The body of the engine has the problem and it is easy to fix at the minimum cost without changing the componenet.