My door ajar light stays on when all doors are closed for my MPV

its a bad door ajar switch. which one? you would need a scan tool. but the drivers door does get used more.....

check all of the door sensors. (buttons that are pushed in when doors close) they sometimes come loose and need adjusting.. easy fix once you find the bad one.

Most vehicle door open light works by a spring loaded contact switch. The switch body acts as ground. when the door is closed the switch depress disconnecting positive from ground. Seems that one of your door switch may be bad. Look for a rubber covered sitch on the door jam you should be able to remove the rubber cover to access the switch for a good inspection.

Depending on the make model and year, it could be a sensor in one of the door latches.

You have a bad door ajar switch on one of the doors. It is shorting out and causing the lights to flicker and the door ajar light to stay on.

The door switch is stuck on or the wire is shorted to ground.

Google the vehicle or you can ask the dealer what fuse is for a specific item or check each fuse 1 by 1.

The drivers side door switch goes bad all the time on those, try replacing or check if its sticking.the small little button int the door jam.

I had this problem on my 2003 explorer and took WD40 and gave the lock mechanism a good dose where it meets the clasp on the door jam. Then open and close the doors a couple of times to get them working. They get gummed up and sometimes have a tendency to stick.

you may just need to adjust your door jams they may not be closing properly, the other thing you can try is opening one door at a time and putting your finger on the switch usually in the lower l/h corner of b piller and see if the light goes off if not this may be the problem and replace the switch