Honda ACCORD 2008 Manual page 4

INTERACTIVE NETWORK
Factory diagnostic screen In Line Diag
NOTE: If the vehicle left the factory in the factory diagnostic mode, you will see this screen every time you turn on the ignition.
When a navigation control unit is powered up for the first time at the factory or after replacement with a new or remanufactured navigation unit, the factory diagnosis screen
(In Line Diag) shows up. Normally the factory does the steps necessary to verify proper operation and terminate the factory diagnostic.
Until the proper confirmation sequence is done, the screen will show up every time the vehicle is started.
Follow the steps below to prevent the screen from showing up in the future:
Press and hold the buttons (MENU + MAP/GUIDE + CANCEL) for about 3 seconds (the Select Diagnosis items screen appears).
Press and hold the MAP/GUIDE button for 5-10 seconds (a screen with a Complete button, appears).
Complete, then Return, and then shut the key off for 5 seconds. Do not disconnect the battery during this period as the unit is saving the setting to the SRAM memory.
The In Line Diag should not appear again.
Restart the vehicle, and confirm normal operation by completing the TQI of the Navigation System Service Bulletin.
Monitor Check
Overview of display unit
The display unit communicates with the navigation unit over its own GA-Net bus. Information sent by the navigation unit to the 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 display unit. Select the item you want to troubleshoot, and follow the diagnostic instructions.
American Honda Motor Co., Inc. Page 4 of 20