problem w/ OBD and SES

Ok, well i was getting ready to run errands today, and got into my truck and my SES was on, went to Autozone, and was told the computer wasn't connecting to the computer. So, i drove around and didn't hear anything different, fluids are fine. I can't think of anything right now, but if anyone has an idea, pass it along. Much thanks. (truck info on Signature)

If you have another autozone in your area hit them up to check it out...the first one may have had a loose connection or whatever...may even ask a few buddies, OBD scanners are becoming more popular with home mechanics...also make sure your fuses are all good...good luck

This is the third case of a scanner not communicating with the computer that I have seen in the last 2 days....hopefully someone will figure it out and it will fix everybody's.