Toyota Repair: warning light, warning light, dead battery

Question
I have a 2000 Celica GT.  The fuel door warning light stays on- very dim, but on.  Stays on even when motor off.  Am concerned with dead battery.
Any ideas?

Answer
Not sure why the fuel door warning light would stay on dim, I don't think it will draw enough current to drain the battery at least not for a few days, if the car is driven everyday there should not be a problem, you may have to replace the fuel door warning switch to correct the problem.