I would never say that the card is "for sure good", based on this test procedure, but I would think it proves the display is able to see and display an error code when 1 is active, so then it means there must be some other strange problem, since the card should also display some code, any time it does not run, and if it does run, it should then output the current battery state of charge to the same display.
what does the display say as you try to drive, just blank? (have you turned the key to the "start" position, some crowns have a rely that the start position pulls in?)
does the display show the sequence for the reach selector?