Monitor Check: Notes
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Overview of navigation display unit
- The navigation display unit communicates with the navigation unit over its own GA-Net bus. Information sent by the navigation unit to the navigation display unit includes commands to control the LCD back light.
- The security system protects the navigation display unit by daisy-chaining the security signal through it, and then passing the signal to the audio unit.
- The illumination input from the gauge brightness control provides back lighting for the buttons surrounding the screen.
These screens allow you to troubleshoot the navigation display unit. Select the item you want to troubleshoot, and follow the diagnostic instructions.