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
End of message, no codes present.
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
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.