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I had that the other day. Stopped at Autozone to have them read the code for me and tell me what it was. Ended up the gas cap wasn't as tight as it should have been and the computer didn't like it.
The loose gas cap is often the reason members here get the MIL light. For your own edification though, go to the link below (after you check your gas cap, of course ) and learn how to check the trouble codes yourself. It's very easy and a valuable skill to have.
The loose gas cap is often the reason members here get the MIL light. For your own edification though, go to the link below (after you check your gas cap, of course ) and learn how to check the trouble codes yourself. It's very easy and a valuable skill to have.
There have been a few changes and additions for some of the C5 model years. Hopefully, they will add the 2004 codes soon. There has been at least one addition for 2004 that I'm aware of. A recent post here asked about this code. I can't remember what the code was now, but it had to do with the evaporative emissions systems I believe. However, for the most part, I would think the 2004 codes would be very close to those for 2003.