On the a/c controll unit in my sc400 there are these black streeks in the LCD screen when my car is cold ( below 60 degrees) Some of the streaks go away in the 60 - 70 degree range but they dont go away completely untill i leave my car out in the sun for a couple hours and the interior gets to like 90 degrees. Does anyone have any idea what is causing this, or how i can fix it? Here is a pic of it when the car was like 65-70 degrees.

 

Hmmm it looks like someone pushed on the LCD too hard at one time which could have caused damage. Otherwise maybe it's a moisture issue, that may explain why the problem goes away when it's hot. I'm just guessing here, maybe some of the tech gurus can say more. Looks like you may need to replace it.
Earl!

 

File 13.