thank you all folks, ok na yung car. pinaglaruan ko lang yung remote control ng alarm ko. I called my friend from mitsubishi and sabi nya may anti-theft(?) daw ung car security ko at na-activate daw. so I did what he said and voila!!! the car is alive again.
palitan ko na daw battery ng remote control baka daw mahina na kaya nag malfunction.