The dictionary meaning of the B2164 Code is just general information about the problem and the dictionary meaning of the code is b for Body Code Problem is antilock brake system, electronic suspension and steering systems. 2 for MFG – Manufacturer Specific. 1 for Transmission. 6 for Control Module Throttle Actuator Position Performance and 4 for Cruise Vehicle Speed/Set Speed Difference Too High. Body of the engine problem is not very difficult and it is not costly at all for solving the body of engine problem. No body part of the engine is necessary to change for solving the car engine.