Where can i find the check engine codes for a '89 plymouth reliant?

i know i can get it from the haynes repair manual but i need a free copy from somewhere. please helpWhere can i find the check engine codes for a '89 plymouth reliant?
See this link:

http://www.allpar.com/fix/codes/index.html

I use it on the older Chrysler products...

Has very helpful info and detailed code explanations.Where can i find the check engine codes for a '89 plymouth reliant?
Go to the public library they normally have repair manuals and you can copy the pages you need cheap.