What does the "Check Engine" symbol and light mean? Toyota has not been able to determine why it keeps coming on? Any clues?
After Toyota kept telling their diagnostic tests showed nothing wrong with engine, etc., they couldn't figure out why the light kept coming on after a few miles of driving. Through our pesistance, they took the front interior panel off, tried to narrow the search codes down and made a hypothetical claim that one of the sensor wires is probably worn and it will cost approx $5000 to get to and fix. In addition they said it may not pass smog either because of this. Of course, we were shocked and not quite sure we believe they really research the problem correctly. Please give us some assistance in determining this light warning and should we contact corporate toyota and go to another dealership? Help!