Yaris 2007 remote entry doesn't open (it only closes)

[Revsson]

I would add that even though the LED lights, doesn't necessarily mean that the battery
is still good. As suggested, why not take it apart and clean it. Check the battery
voltage or even replace it. That way, you know you are probably starting with a like
new remote. CTScott can verify, but LEDs only need about 0.7v to light. I believe
the battery in the remote is a 3.0v. So, if it is indeed the original battery from 2007,
it might be time to change it anyway.