Subject: 2002 Mits. Montero Sport - Dash Light
Question:

The backlight to the right two A/C knobs has gone out and I don't know the light source or how to access it. The heat control backlight is working fine but the fan control and directional switch are black. Thanks!

Answer: Charles,
Those controls are usually lit up by small LED bulds behind the dash. They usually are very difficult to get to because they can require removing a signifigant portion of the dashboard in order to access it. The best way to do it would be to have a mechanic do it, but it could be costly due to the amount of time it takes access the bulbs.
Good luck!