Interior bulbs not illuminating

I’ve got an issue with a few areas in the lower dash area of my 2005 Tacoma.i noticed the dimmer on the left of the dash doesn’t dim anything, the three knobs that control the climate do not light up but the two orange lights that light up to indicate the a/c and the outside air both light up when in use and the gear selector window between the seats not working either.I got the correct bulbs from Toyota and took the a/c control panel out and these two bulbs were the only bulbs in the entire area so Idk!?!?! I replaced the bulb in the gear selector area (only one on the left side, put back together and still nothing!I have checked fuses with a test light inside and under the hood and all seem to be fine!Any suggestions or if anyone has had this. Similar issue I'm all ears.

 

This may help.

http://www.customtacos.com/tech.old...toyewd/06toypdf/ewd/2006/tacoma/h/em01d10.pdf

If all of the fuses are good it sounds like a defective Rheostat. Just note that the Rheostat controls resistance on the ground side of the illumination. It does not change the voltage.

 

Sounds like a bad dimmer switch. Check also the wiring harness and ground.