Pacifica is auto locking door

SOURCE: on The driver side door

Take it to the mechanic, this could involve the ABS system

SOURCE: 2001 Grand Am GT interior

a la mejor tiene malos los fusibles o se descompuso la computadora
lo mas probable es que se haya descompuesto la computadora del auto

SOURCE: Passenger door light remains on; all interior lights remain on

is yiur batery in your key ok?

SOURCE: message says "door ajar" but no door open

There are 2 things we see on these models. 1st one is it could be a stuck door adjar switch. For this you can try and put WD40 into the latch on the side of the door, put a generous amount directly into the latch then close and open the door several times.This will un-stick a switch most of the time.
2nd thing it could be, open the door and look at the front of the opening between door and A pillar and you will see a black rubber accordian tube running between body and door,this is where the wires run from body to door. Sometimes a wire will break inside this.You can usually verify this by taking a screwdiver and trip the latch so that it shows the door closed(even though u have it open) then wiggle that harness and see if it effects the door adjar light.

SOURCE: Need to know how to adjust the door auto lock function.

Not an easy fix! The door lock function was designed to lock doors only. you can however, disable this lock feature by simply cutting the light blue automatic door lock signal wire on the 6-wire harness plug connector located on the chime module (In component center).