The B1402 Code comes for the fault of the engine and the code defines the problem. Dictionary meanings is necessary to know and B means Body Code Problem is antilock brake system, electronic suspension and steering systems. 1 means MFG – Manufacturer Specific. 4 means Transmission. 0 means IC Circuit High Voltage and 2 means A/C System High Pressure High Temperature. Manufacturer Specific codes have a ‘1’ as their second digit to require they are single to a precise vehicle model or make. You can easily solve the problem if you have all necessary components. Otherwise, transfer the task to professional for solving the problem.