That's a big question. Too big to be answered in just few paragraphs. Beside they are your brakes.
If you don't know then get it done professionally. It will save your life.
Good Luck...
P.S. It is actually easy, but at least take a look at how a pro does it once - not here.How do I change the brake pads on my 1999 Toyota Caldina?Contact an Authorised Toyota service Centre in your local area . They will solve the problems.How do I change the brake pads on my 1999 Toyota Caldina?Buy a Haynes car repair manual.
Its explained in there with diagrams.
Its the best option for a DIY person and its simple enough
