Pull the kick panel off and see if there is a wet ECU behind it.
I wrapped mine in a freezer bag with the ziplock end down. It didn't matter then if it got wet behind there.
The leak was from windshield channel having some rust issues under the trim and glass and running onto the ECU <img src="/forums/images/graemlins/scared.gif" alt="" />

1985 SR5 4Runner
eLocked with Carter Lock
4.7:1 single case
Davez Offroad twin stick