The dictionary meaning of the B2106 Code is B for Body Code Problem is antilock brake system, electronic suspension and steering systems. 2 for MFG – Manufacturer Specific. 1 for Transmission. 0 for IC Circuit High Voltage and 6 for Cruise Control System – Vehicle Accel Too High. This meaning does not provide real information for solving the car engine problem. As the manufacturer of your car sets the meaning of the code, so you need to get that meaning of the code. If you do not know the real meaning of the code, the basic meaning of the code does not give you so much information.