Re: VSC CheckEngine Maintenance Light All on
Ink, there is more to this issue than you mention. What you are saying is true you take it to a shop. But mine gives a code for the oxygen sensor so it was replaced. But then the light comes on occasionally again afterwards. So, basically it is not a plain simple thing like you present.
My two lights have come on again and I am working on the gas cap. I cleaned it late yesterday and the light went off again, but I think I will replace the gas cap.
In reality this is the first toyota I have had that had a kind of "crappy electronics" issue. The multiple light thing makes it seem like your engine is about to run out of oil or something major, when it fact it is nothing more than either an oxygen sensor or a gas cap that leaks air. And then, the way the two lights come and go is just flaky too, so I give a ding to toyota here. Now believe me I have driven 4 camry's close to 200K each and now the sienna. I never had a stupid electronics issue with any toyota till now. Sure some old european cars I had all had stupid electronics issues, so have some american cars people I know have. But this is a first for me a toyota with " electronics issues".
I spent some time on this searching all kinds of forums and posting. These two lights have come on for these reasons listed in differing forums: gas cap, oxygen sensor, and simply a bad computer and perhaps a few more. Unfortunately none of the people posting on this had such an easy time as getting a code and problem solved when item replaced. This is is a real problem. Wish it were not.