I thought it was a light switch too but have not been able to locate the actual light it controls. The yellow wire dissapears into the wall adjacent to the switch.
Take a voltmeter and see if you have voltage on either or both of the wires at the switch. If you have voltage on both wires it is a switch to turn something on when the door id open. If you only have voltage on one wire it is a switch that turns something on when the door is closed.
Depending on which you find will determine where we go from there.
Most likely it is a switch to turn a light on, voltage on both wires when the door id open, and you have to find the light. The bulb may be blown.
I would suspect you will find the yellow wire is hot from the battery.
If neither wire has voltage on it someone may have disconnected the source upstream and you may never find it.
Hummmm thats different. I have lites in compartments but they look like a maplite from a 36 Chevy. Little lever on the side that eccentrics the bulb in and out to make contact. Im supprised mine work after 33 yrs.
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Roger & MaryLou
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F350 CREWCAB SW LONG BED
7.3 liter Power Stroke Diesel
1977 27ft OVERLANDER KA8LMQ AIR # 22336
My your roads be straight and smooth and may you always have a tailwind!
We had those in our exterior hatches, all connected to little tiny light bulbs. No idea if any of them worked anymore as we disconnected them and stripped it all out as we disassembled the interior, and there was no power to the trailer anyway. We'll probably add something to some of the hatches as we rebuild, but maybe something we have to turn on ourselves? Not sure yet. Chris is going to be working on those details this winter with the electrical diagrams...
some types of glove box lights have the bulb socket on the back of the button. it could also be an alarm switch.
Just went and looked again (this is driving me crazy) and it appears that the bulb socket IS on the back of the switch. The first time I reached in and felt around behind the switch it felt too small to be a light socket. It is a light socket, but takes a much smaller type (anyone know what type)bulb than the 1141's found throughout the trailer. Thanks guys.