Do you have a new swicth already?
One that looks like this....
Ok. These are very easy to change. Please listen, this following video will give you an idea as to what you are trying to do. It is not of a Toyota vehicle but it is changed the same way. Please watch and reply back to me....
You can skip to 1:20 and start watching there.
I am having trouble visualizing what you are trying to do so I will opt out and open this up for other Experts to help.
The part I am replacing looks like this.
the picture is from internet try this link.