Buy a new one at car parts store, then unscrew the old one to put new one in. Remove the plastic cover over the engine head (four nuts). The PCV valve is located at the top/back right--it has a black rubber vacuum line plugged into it.
when it breaks
$1500 to $2000
You can replace your 2003 Toyota Echo antenna. Remove the antenna retaining nut. Remove the cable from the bottom of the antenna. Reverse the process to install the new antenna.
$5
take it to the Toyota dealership and ask them to replace it
To replace your brake light, you need to unscrew the brake cover from the inside of the trunk. Then you will be able to pull the old bulb out and replace it.
It's an easy job, details can be found here: http://groups.msn.com/Sorensonbrian/yourwebpage.msnw
chain
Pretty sure its the same as the 2000 Toyota echo, see related link.
The 2003 Toyota Echo takes 22" drivers side and 14" passenger side replacement windshield wiper blades.
about $1500 AU
3.6 litres