I know this diagram applies to 2000-2002 models for sure, but it probably applies to other years as well: http://wwww.gordosoft.com:443/VViz//echodrivebelt.jpg Its an easy job. I do recommend using penetrating oil on the alternator bracket and bolts and loosening ALL THREE bolts (one lower, two on the bracket itself) to remove or remount the drive belt. You don' t have to go nuts in tightening it, but you should pry the alternator forward as best you can.
Doubt it is different from the older model years, a diagram was posted on this website for an older model echo.
Go to autozone.com..Repair instructions.Look for serpentine belt.May be a routing image there.
you cant
search for echo manual torrent
Buy the belt and get instructions from the place of purchase which they should have or check for a sticker on the top of the radiator cross member or on the under side of the hood
According to my reference, there was no 2004 Toyota Yaris but there is a 2004 Toyota Echo. (The Yaris replaced the Echo in 2006). See sources and related links below.
Pretty sure its the same as the 2000 Toyota echo, see related link.
http://www.bulldogsecurity.com/bdnew/vehiclewiringdiagrams.asp
How to open hood on Toyota echo
Less than $10 for the belt, and about 20-30 minutes, its an easy job.
yes
If you are asking if you can tow with a Toyota echo, the answer is yes. See related link for a video of a Toyota Echo towing a small trailer (and off roading).