When the light comes on while driving, that means the problem is there (current). If the lights goes out later or on another startup, that means the problem is not current. It will still be stored in history and can be read for a while (~50 starts). After that, if the problem doesn't come back it's cleared from history.
All the code testing is based on the problem being there. This means that if the wire, connector or component isn't bad DURING testing, it can't be found.
If you have a cat and a fish at home, and the fish disappears while you are out, you can guess what happened, but if you catch the cat with his face in the bowl and the fish in his mouth, you KNOW what happened. If you have 50 cats, which one is the bad one? That's what intermittent problems are like to find. I'd suggest checking the history codes to get an idea of the area of the problem, but there is no point in trying to diagnose it unless the light comes back on. It would be a best guess unless the problem can be duplicated.
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2004 Dark Plum Base with windows tinted, cabin filter, silencers removed, fog lights, 18\'s, all Red taillights, Blaine\'s struts, modesty cover, color-matched center dash, 06 rear bumper
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