1999 Lexus ES 300

Electrical problem
1999 Lexus ES 300 6 cyl Automatic 60730 miles

I push the button to open the door to access the gas cap. It makes a noise, but the door does not release and open. I have a little metal v shaped thing about 1/2" big with a rubber tip on one end which I am somewhat sure has something to do with the problem. Sadly, that piece is now loose and doesn't know where it belongs and neither do I. If you can help, I would sure appreciate some advice.
August 19, 2010.

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