Your door latch is likely worn and/or loose. Wrap the door latch POST with Duct Tape and it will provide a tighter closing fit for the door and could cure your situation. When it get loose again, just rewrap the post in tape again where the latch catches it.
On my 2002 sportage 2-door, the door ajar light stays on when the tailgate is not locked. with the key.
The Door ajar light is not run by a specific fuse. If your 2003 Kia Spectra has a door light keep coming on, you will want to check the connections to make sure that all of the doors are completely closed.
why does my door ajar alarm keep coming on and off while driving my car.
If the door ajar light is coming on in your gauge cluster, and the warning chime is sounding when all your doors, liftgate, and glass hatch are securely shut you most likely have a sticking door ajar switch. The door ajar switches are inside the doors mounted on the latch mechanisms.
some how the tail light wire is touching the ajar wire
Fix a "door ajar" on Chevy Impala 2003 . Still on doors closed.
Possible faulty door switch.Try contact cleaner or light grade of lubricant on the switch. Push it i nby hand and see if door ajar light goes out.
a door in your car is not fully shut.
If the door is ajar and light stays on, spray some WD40 into the latch. The door switch is probably stuck. Spray all doors then open and close a few times.
Try spraying WD-40 on the door latch, the part that is on the door itself. The door ajar switch is located in with the latch. Had the same problem, door ajar light on, interior light stays on, and horns toots twice when you lock with remote, to signal door is not closed. Door was shut but truck didn't know it, WD40 fixed it.
I had the same problem. Here is the solution. Spray WD-40 on all door lock jams including the rear door hatch. Problems solve.
The door being open.