Hmmmmm.... It shouldn't have changed the CE light at all! This is just a code-read feature and won't erase codes no matter what. But I guess it didn't display codes... that right?
Since we can't extract codes anyway, disconnect the cam sensor connector and try to start the engine. I'm mostly-sure that this model year has the capacity to run with the crank sensor only, so if the reason it won't start is that there's a timing conflict... removing the conflict should get the engine running again.
It will take close to ten seconds of continuous cranking to convince the PCM to switch to Plan B (no cam signal) before it will start. If it does start, you'll be looking at either a bad cam sensor or a timing belt problem.
Try the code read feature one more time before doing this, as you'll set a P0340 code by disconnecting the sensor and we won't know if it was there before or not.
You'll find the cam sensor at the far back end of the cylinder head, just to the right of the battery
. It may be necessary to remove the battery to get the room needed to access the connector, which has a red slide-lock that has to be clicked to its opposite position before the release will work. The slide lock doesn't have to come out... just get clicked to a position even with the connector mold.