The automobile meaning of the B2133 Code is B for Body Code Problem is antilock brake system, electronic suspension and steering systems. 2 for MFG – Manufacturer Specific. 1 for Transmission. 3 for Cruise Control Servo Indicates Low and 3 for Transmission Control Module Reprogrammable Memory. This is general meaning but for solving the problem from the engine, an automobile engineer needs to know the name of the brand and model number. Because this code is found in different brands of the car but meaning of the code is not similar for all of the car. Meaning of the code changes according to the manufacturer.