Not sure what you are asking, but it has disc brakes in the front, and drums in the back. If you want to know what specific pads to buy, just go on any online site that sells auto parts, and it will ask you for your model and year, and show you what fits...
Disc brakes in the front, drum brakes in the rear. Anti-lock brakes were optional.
See related link.
http://groups.msn.com/Sorensonbrian/frontbrakepads2002.msnw
search for echo manual torrent
Disc in front, drums in back.
There are none.
http://pdftown.com/2000-2002-Toyota-Echo-Service-Manual.html
See related link.
The 2002 Toyota Echo OBD 2 port is under driver side dash next to kick panel
For my 2002 Echo it is 3.7 Liters with a filter change.
3.6 liters
To flush the coolant in a 2002 Toyota Echo you will need to drain it first. Flush with fresh water and then refill with coolant and distilled water.