2002 Pathfinder dome light & alarm issues

[dirksterg30]

I recently bought a 2002 Pathfinder SE. It runs great, but I do have an issue with the alarm system. I believe it's related to the doors, but I'm not sure. My car was parked a few nights ago, all doors closed & locked. At about 4 am, the alarm started going off. I unlocked the car with the keyless remote and went back to bed. I left the car unlocked, but 2 hours later, the alarm starts going off again. I used the keyless remote again to turn off the alarm; this time it stayed off.

I had this happen once before while the car was sitting a few feet away from me. No one had been near the Pathfinder; it just started on its own.

I think this may be related to the doors as my dome light will occasionally come on, go off, come on again... when I'm driving. When it does, I cannot lock the car doors using the door switch, but the door ajar warning light on the dashboard does not come on. It seems that the when I am accelerating, the light comes on. When the transmission shifts or the car slows down, the light goes out.

When I checked the door switches that make the dome light come on, the drivers side switch does not turn off the dome light. I replaced it with a new switch, but that still didn't fix the problem.

To keep the alarm from going of in the middle of the night, I pulled the 7.5A fuse in the engine compartment labeled "Anti horn" (I assume this is for the alarm). Only problem is it disables the horn as well. Until I can get this fixed, is there a way to disable the horn only for the alarm?