some how the tail light wire is touching the ajar wire
What kind of vehicle? Does Door ajar light stay on also?
On my 2002 sportage 2-door, the door ajar light stays on when the tailgate is not locked. with the key.
The door being open.
The door ajar light might stay on in a Mercury Mountaineer if a door is not shut properly. Sometimes a door will seem like it is shut, but will not be shut enough to trip the light off. Check for dirt or other debris in the door latch for all doors.
The back hatch may be ajar.
Oil latches on doors and tailgate samething happened to me
The reason why the door ajar light stays on in a 1999 Nissan Altima could be due to the door switch being stuck. It is stated to spray WD-40 into the latch and that should fix the problem.
Sounds like one of the door switches or wire running to them is shorted to ground, since the indicator and cab light are looking for a ground to come on. Some vehicles will not allow power door locks to work while doors are ajar.
If the switch is bad or out of adjustment, then the door ajar light will stay on. The overhead light will not go out, and the security alarm will not set.
Probably a faulty on-off switch in the door jamb, or a misaligned door which fails to close the connection.
dirty door latch clean with wd 40
in your doot jam you have little button it is a sensor it might be bad or it is your computer board behind your radio it also controls your door charm and some interior if not all interior light