You need to go to a car parts store, and get a repair manual for your car. They cost about $16.00 Or, go to a Public Library.
Check the fluid, check for codes.
You need a scan tool to read fault codes.
Get your car to a shop to scan the codes. There are well over 100 different codes that can cause your Check Engine Light to come on.
There are pages and pages of causes for a check engine light. You need to have it checked for codes with a scanner to know what to diagnose. After the repair you can clear the code with a scanner.
The computer has detected a malfunction. Sugest that you have it checked for codes. Could be anything from a cracked vacuum hose up to an internal engine problem.
Problem with the transmission. You need to have the transmission computer checked for codes to know a possible cause.
speed sensor malfunction. you need to check the trans codes
it could be just a faulty gas cap or faulty computer go to your local parts store they should be able to check the codes and tell you the problem
End of message, no codes present.
You hook up a scanner and check it for codes.
go to autozone to ask to check your codes
See link below for a complete list of trouble codes.