95 Cutlass Supreme Electrical Problem

Hi! First post.... hope its not a duplicate. I have a 95 Cutlass Supreme 4 door sedan that the rear passenger courtesy lights do not work. When I turn the dimmer switch knob to turn the courtesy lights on, all the other lights go on (both lights in the rearview mirror, driver and passenger lights for the floor, don't have a dome light) but the rear roof lights do not come on. Any thoughts?

Welcome to AF, I assume the bulbs are good. Do they work when the doors are opened, is there a seperate switch in the rear?

Thank you for a response! Yes, the bulbs were tested and they do work. They do not work when you open the doors either. I have attached a picture of what the lights look like for your reference.
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Thank you for a response! Yes, the bulbs were tested and they do work. They do not work when you open the doors either. I have attached a picture of what the lights look like for your reference.
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Did you check that the light switches next to the light are OK? Mine seem to be intermittent, and sometimes only one of the lights comes on.

Did you check that the light switches next to the light are OK? Mine seem to be intermittent, and sometimes only one of the lights comes on.

It is the switches that are causing the problem! I was able to look into it over the weekend in more depth(checking voltage, etc) and I finally got one to come on. I am going to see if I can get replacement switches or just by-pass them completely and just have them work off of the main dimmer switch. Thank you both for all your help!