Please Help High Beam not working.

Hi i own a 94 Hiace Super Custom, and have a problem with my High Beams.
When i pull back on control shaft the high beam Works, but when engaged in the forward positions
does not work. Could some one please assist me, and direct where to buy another unit from,
or whether the unit can be cleaned without taking apart. Or how to take apart.
Thank you.
TG

If you have some contact cleaner you could try spraying a little of that into mechanism on the steering column. If that doesn't work then hit www.toyodiy.com and you should be able to get the part number and then do a search for the part. Ebay can often be a good bet. The part is most likely shared across Toyota models.
Hope that helps.
Cheers,
Rich

Thanks Rich.