Door ajar light..
 

Well just bought a 97 expo with 110k door ajar light stayed lit i sprayed wd40 generously on all of the door locking mechanisms and walla no more problems with the light,hope this helps u out oh yeah you have to open and close the doors several times but its worth it,,,,ps if you hit the door lock on your alarm pad twice and the horn beeps once its fixed if does twice keep spraying....