In the car the display worked when you wanted it, i.e. the interior was warmed up, or in the winter chilled strongly. America did not discover that it is about solder joints, i.e. either cold solder or a microscopic break in combination. I mainly focused on legs and surroundings the scalpel, which was covered with a cracked yellow substance resembling bee wax, I removed the substance with a cotton swab and isopropylone "IPA." Then I corrected the soldering iron with a bit of "fresh" tin. After this the display works without any problems. 
And the system after batching.
And the system after batching.
