Guys,

I just got my car fixed by the dealer for the Camshaft gear replaced under powertrain warranty.

I got the check engine light and got the code P0012 on my ObdScope on Nokia E71. I took my car to the dealer in Dallas and they graciously fixed and replaced the camshaft gear to resolve.

Refer to this TSB.
http://tijil.org/Scion_TSBs/eg00307.pdf

Check your cars.