So my passenger side courtesy light on my 95 4runner hasn't worked since I got the truck, replaced the bulb, and still nothing. Does anyone know where to start? I tried to find the ground to inspect it, but couldn't find it. Its the only one that doesn't work out of all the interior lights, I did do some inspecting in the door and passenger side kick panel but still couldn't find it. So any help would be appreciated!

 

This might help get you started tracking it down,
https://www.4crawler.com/4x4/CheapTr...arWindow91.jpg

Have you checked the socket to ensure it's not corroded or damaged? Have you used a multimeter to ensure that the socket is getting the power needed to light the bulb?