98 Sebring JX-door bell/locks/interior lights flashing

I have a 98 Sebring JX convertible that started with the door lock's locking and unlocking themselves and door bell ringing with the "door" message flashing back and forth on the digital odometer and now the interior light's are flashing off and on while all of this is going on! I have checked the button on the inside of the door jam that both seem to be fine and the door's are shutting fine! I pulled the fuse that control's the lock's but have no idea what's causing this issue??? PLEASE HELP!! it's driving me crazy....:crying:

After much testing, I used my own advice.............Start with the cheapest part first...... All it took was a thin watch battery and a drop of apoxy, to glue it to the door button............problem solved.