what does this switch dooo!!
 

ok i have an 85 celica supra. and i have 3 switches.
1st(farthest back) is rear wiper
2nd(middle) is tranny control thing
3rd(farthest front)...? what does that do? im gessing the labels got worn off..

and and
its an auto... and i have to shift it myself? if i try and start in drive it starts in 3rd? any one know either of these things?

Isn't your car an MK2? If so, you'll have more luck if you'll post in the MK2 section. Anyway, try posting a picture of the location of this switches, it will be more easely recognized.