Originally Posted by Superd
Don't worry, it's an open book and all mutiple choice test.
It's just a list of things like an LCD test that lights up every light on the LCD and then some info like the vin number for the car. Nothing really interesting or useful in my opinion.
Holding the trip reset in the base model as you turn the car on is more useful as you get a digital speedo or tach and you can even see fuel flow numbers though I think it only tells you much fuel has been used since you went into the test mode for that.