I have recently changed the front passenger side turn signal bulb on my 2000 Lexus Es300. there was a crack in the clear plastic housing which let some water in. I've since drained, dried, and sealed it. What i noticed when taking out the old bulb is where the bulb electrical connections had some chemical build up that i clean out as best as possible. What other options to i have in fixing this problem? Turn signal clicks abnormally and the dashboard still indicates light malfunction. HELP!