The present invention relates to an automobile function control device and method, capable of controlling a plurality of functions of an automobile without carrying of the automobile key or a keyless entry
system or a remote initiator. The present invention provides an automobile function control device and method using a touch pad component, according to the invention, ciphers are set respectively to correspond to the automobile functions, after inputting a
cipher through the touch pad component, the inputted
cipher is judged whether it is one of the setting ciphers or not. according to the judged result, if the inputted
cipher is determined to be one of the setting ciphers, a corresponding function of the automobile is implemented based on the inputted cipher. in such a case, the functions of the automobile includes
authentication, automobile door open and close, engine start, compartment open, head light coruscation and the like.