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.
yes
Look to the right of the radiator cap, which is at the top of the radiator. You can't miss it. It has a "low" and a "full" line on it and your coolant level should always be between those lines.
Should be at the bottom of the radiator, somewhere on the passenger side.
http://pdftown.com/2000-2002-Toyota-Echo-Service-Manual.html
Yes.
search for echo manual torrent
Pretty sure its the same as the 2000 Toyota echo, see related link.
If the A/C is not working on a 2000 Toyota Echo, the pump may need to be recharged. It is also possible that the belt for this is broken or the thermostat is sticking.
Mine is a Toyota echo 2000 sedan. It does about 12 to 15 KMPL per 1 petrol litre.
The radiator sensor in a Toyota Echo is typically located near the radiator itself, often positioned on the radiator or in the upper or lower radiator hose. This sensor monitors the temperature of the coolant to help regulate the engine's temperature. If you need to access it, make sure the engine is cool and follow the vehicle's service manual for specific instructions.
there are no 2000 yaris that would be an echo