[JaVeRo]

To read the codes all you need is a paper clip.

Find the ALDL connector beneath the dash. Use the paper clip to short out the A and B terminal. A is the top right and B is the second from the right on the top row.

Turn the key on, the check engine light will blink 1,2.....1,2.....1.2
This is code 12 and is not a trouble code, it just lets you know you are communicating with the ecm.

Any trouble codes will be stored after the code 12 flashes 3 times.

Turn the key off and remove the paper clip.

If you have a Chiltons manual go to page 4-37 for the procedure and 4-38 for a pic of the ALDL connector.

Hope this helps.

James