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.
Not unless you have run out of gas.