Hi, the check engine light on my car just came on today, and I'm having a problem getting my car to display error codes via its x92 connector. I've followed the instructions from http://mywebpages.comcast.net/chwilka/Error_Code%20_reader_reset_tool.htm as well as those given to others previously in the forums to no avail.

Basically, the LED only lights whenever I press the button on the connector. It never flashes to indicate that no faults are stored, or that there are faults stored. I've even built the simple circuit on the url above and still get the same results. Even following the instructions at http://www.landiss.com/mixture.htm, I could not get the car to go into test mode. The LED wouldn't stay lit!

Does anyone know what might cause this problem or how I can retrieve what error codes have been set? Thanks for any input that you might have!