I have a 2002 f-250 c/c with the diesel. I notice that when its damp or humid outside or if its cold out and i run the heater(causing perhaps a bit of dampness) the door ajar light stays on.Was wondering if anyone else has had this problem and what the remedy was. Personally i believe there is a relay or something that might stick a little bit at the times it gets damp or humid. Any suggestions because there is no plunger switch like on older cars so there must be a sensor of some type connected to a relay somewhere. This is just more of a nuisance than anything else,but when i turn the truck off that damn door open chime just wont quit.Thanks