I have an 08 Lexus 220d where the main centre screen is black and not working. I have had all the fuses checked and all are good. The diagnostic could not pick up any navigation information. The row of buttons below the screen (Recirculation, Heated windscreen etc) are not working. I have been advised that it is the navigation module that has gone down but being such an expensive part I do not want to make any mistakes. Could any one confirm that the navigation module would cause a loss of screen and the buttons below the screen?
Thanks in anticipation,