Thanks, I will have to go out later and check the rear door panel lights. It is odd that neither rear doors will activate the courtesy lights. Almost like the power to the switch comes from a common wire which is cut or disconnected. I will also check to see if I have power TO the switches. If the way they work is that the switch connects the circuit to ground when the door is open and the switch is in the out (door open) position, then there should always be power TO the switch, correct? Is that the way they work?