If you are referring to the color codes for the Head Unit wiring for installing an aftermarket stereo system, then the wire colors can be found at http://www.installdr.com/Harnesses/Toyota-Wiring.pdf
Dealer or paint shops.
ALLDATA.COM T HEMPLE
I can not find them anywhere in America!!!!!!!!!
http://www.wirediagram.com/mitsubishi.htm
installdr.com http://www.installdr.com/Harnesses/Ford-Wiring.pdf
I googled that and found PDF's of the electrical wiring diagrams for my Corolla. The integration relay is located to the left of the steering column behind the coin tray attached to the fuse box. It should be tan in color.
try www.autozone.com
The 2009 Toyota Corolla stereo wiring diagram can be obtained from most Toyota dealerships. The wiring diagram can also be found at most auto-parts stores.
You can obtain a 1996 Toyota Corolla wiring diagram from most Toyota dealerships. You can also find the diagram at most auto-parts stores.
Try this link http://www.repairsmanuals.com/toyota-corolla-factory-repair-manual-.html
i know Chevy puts the color codes on the inside glove box. for the most part they put them on the tags under the hood on the fire wall and the inside of the doors. -Matt Stout
Google would be your best bet.