Okay, Ephratah. Thanks for the offer of advice.
I have a 2005 Ford Ranger extended cab pickup. It seems that the "door-ajar" switch on the passenger's side has malfunctioned. I had this same problem on my former 1997 Ranger and the fix was to spray WD-40 into the latching mechanism on the door. Apparently the switch would get stuck and by spraying the lubricant into the latch mechanism, it would free-up the switch.
I've sprayed PB Blaster into the latch mechanism on this truck about 7 to 10 times and it hasn't fixed the problem. Any advice on how to proceed?
Thanks again for any help you can give.
Tom in TN