Greetings fellow tsikoteers! Need your help bec palagi nag-aalarm sasakyan ko whenever I press the lock button. Na-check ko naman ang mga pinto at properly closed naman lahat including the trunk. Bakit kaya palaging nag-aalarm parin?

I also noticed just recently, whenever I turn off the engine, hindi na automatic nag-unlock ang mga doors. Dati naman pag-switch off ko ng engine auto unlock na sya. How do I fix this? car is corolla 90 1.6. Thanks in advance!