Hope you find the sites/links below useful

How Stuff Works - Auto Channel
http://auto.howstuffworks.com/

Auto Repair for Dummies (PDF)
http://************.org/tor/3529433/...or_Dummies.pdf

Toyota Electronics Part Catalog
http://************.org/tor/3493947/...s_Catalog_(EPC)

Toyota Corolla Repair Manual (PDF)
http://www.meganova.org/details/147768.html