I have a Canadian Gauge Cluster and the icon thats shaped like a little engine (on the right side of the gauges) just came on and won't go out.

It's a yellow color.

I did wash the car today and also have had a new amp/subs/cap put in but that was almost 2 weeks ago and I have had no problems.

All of my fluids are fine. This sucks - I was so happy to get the car clean today and it pulled this crap while I was on my way to show it off to a friend of mine...

Any ideas?

Thanks!

PS - Is AutoZone the place that reads the codes for free?