Navigation System Diagnostic Mode 1

Navigation System Diagnostic Mode

Start-up procedure and Diagnostic Menu

There are two ways to enter the diagnostic mode:

Mode 1:

Start the vehicle. When the globe screen appears, connect the SCS service connector Component Tests and General Diagnostics to the navigation service connector located by passenger's under-dash fuse/relay box. The screen changes to the System Links screen, and automatically begins running the self diagnosis. See the System Links section for more information.

NOTE: When finished troubleshooting, make sure to remove the SCS service connector.









Mode 2:

Start the vehicle, and at the disclaimer screen use the navigation display hard buttons:

Press and hold the MAP/GUIDE, MENU, and CANCEL, buttons for about 3 seconds. The display screen goes directly to the Select Diagnosis Items menu shown.

- Self-Diagnosis Mode (runs the automatic diagnosis of the navigation system)
- Detail Information & Setting (Can help you to manually diagnose the navigation system)





System Links

1. Enter this screen by connecting the SCS service connector or by selecting Self Diagnosis Mode from the navigation screen main menu. The message at the bottom of the screen flashes indicating the diagnostic is running. Make sure you enter the anti-theft code.

NOTE:

- The system cannot complete a full diagnosis unless the engine is running.
- DTC 1801 can be stored when the ignition switch is in ACC (I), or press the engine start/stop button to select the ACC mode. With the ignition switch is in ACC (I), or press the engine start/stop button to select the ACC mode, the AcuraLink is turned off and the audio-navigation unit loses communication and stores DTCs. Therefore, there is a possibility that the system is normal even though DTC 1801 is stored. Check system links with the engine running, and if it appears normal, the system is OK at this time.









2. Rotate the interface dial to select the icon you want to diagnose. Push in the selector to see the details of that diagnostic function.

The System Links function runs automatically and displays a flashing message at the bottom of the screen reminding you to have the engine running for the test. The diagnostic tests the following:

- Most of the wires connecting the navigation components are shown in the block diagram.
- The results from the various components shown in the block diagram.
- The audio-navigation unit tests the microphone by listening to the bong sound produced by the audio-navigation unit from the speakers when the diagnostic is started. This requires that the audio system be operating normally.

When the diagnostic finishes, the icons turn different colors based on their test status. The color definitions are shown below and can also be seen by selecting Help on the System Links screen.

The indication on the screen may not change until you exit and reenter the Self-Diagnosis mode. In some cases, you may have to restart the engine for the indication to change. After you repair the affected component or harness, repeat this diagnostic.

Explanation of each icon

Each icon color is explained in the table.





NOTE: By selecting the HELP icon, you can see a description for each color.

Icon Color Information














Factory diagnostic screen In Line Diag

NOTE: If the vehicle left the factory in the factory diagnostic mode, or if the audio-navigation unit is replaced, you will see this screen every time you turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

When the audio-navigation unit is powered up for the first time at the factory or sometimes a remanufactured audio-navigation unit is installed, the factory diagnosis screen (In Line Diag) appears. 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 appears every time the vehicle is started.





Follow the steps to prevent the screen from showing up in the future:

- Press and hold the MENU, MAP/GUIDE, and CANCEL buttons at the same time until the Select diagnosis menu screen comes up. Then release the buttons.
- Press and hold the MAP/GUIDE button until the In line Diag CSF Setting screen appears.
- Set the In Diag Setting to Complete, and make sure the CSF setting is ON, then select Return twice to exit the diagnostic mode.





Detailed Information & Settings

These sections allow you to run a specific diagnostic and allows additional setting choices for some screens that are not shown when selecting an icon from the System Links screen.

When you select the Detail Information & Setting menu, the main diagnosis menu is displayed.





After the display changes to the Diagnostic Menu, select the item you want to check, and the test begins. To return to the previous screen, select Return.






Monitor Check

Overview of display unit

- The navigation display unit communicates with the audio-navigation unit over its own GA-Net bus. Information sent by the audio-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 the components.
- 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.





RGB

This screen verifies that the display unit is receiving the video (R, G, B and Composite sync) signals properly. The three primary colors should all appear without distortion. The combination of all three should produce a central white section. If any of the colors are missing, troubleshoot for the color signal Symptom Troubleshooting. If the picture has lines in it or scrolls horizontally, or vertically, troubleshoot for a Composite sync problem Symptom Troubleshooting.





Gray Tone

This screen diagnoses problems with contrast. You should be able to see the changes from bar to bar across the scale. It is normal for the two bars on either side to appear the same. If you can't see changes from bar to bar, replace the navigation display unit.





Black Raster

This diagnostic screen checks for pixels that may be stuck on. The entire display must be black. If pixels are stuck on, replace the navigation display unit.





Color Pattern

The diagnostic screen shows the colors being used for the map and menu screens. This is for factory use only. To check the color signal, use the RGB Color diagnostic found under the Monitor Check.





White Raster

This diagnostic screen checks for pixels that may be dead (off). The entire display must be white. If there are dead pixels, replace the navigation display unit.





Monitor Adjustment

This allows you to adjust the navigation display or the rearview camera guide line. Select the item you want to adjust.

- Navi: This allows you to center the navigation display.
- Rear Camera: This allows you to adjust the rearview camera guide lines.





Navi

If you selected the Navi, use the jog dial to move the picture up/down or left/right. Do not adjust the monitor position unless directed by a service bulletin. The Default button resets the display position to factory specifications.





Rear Camera

If you selected the Rear camera, the rearview camera image appears. If you need to adjust the guide line, select Turning and adjust the guide line with the jog dial. The Default button resets the guide line position to factory specifications.

If the client starts the vehicle, and immediately shifts into R position, the camera image appears within 1 second, but the guidelines may take up to 7 seconds to appear. This is normal.

The rearview camera is connected to the audio-navigation unit via the navigation display unit. The audio-navigation unit must boot up (7 seconds) before it can display the guidelines.