kia sephia 2000 Check engine light on-how to read?

My 2000 sephia "check engine light" is on, but not flashing. Can anyone give me some clue about where is the socked to read the signal and what equipment should I use? I try to get some clue before I send the car to the repair shop.
Thanks

The Check Engine Light isn't suppossed to flash. It will come on and stay on.

To find out the problem, you need an "OBD" or "OBD II" Code Reader. Most autoparts place have them, and will test the code for free (I take my car to AutoZone).

The socket it under the dash. Right right side of steering column.