Part 1

Navigation System Diagnostic Mode

Start-up procedure and Diagnostic Menu

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

Make sure the battery is in good condition then press and hold the three buttons MAP/GUIDE, MENU, and CANCEL, for about 3 seconds. The display screen goes directly to the Select Diagnosis Items menu shown below.

- Self-Diagnosis Mode (runs the automatic diagnosis of the navigation system)

- Detail Information & Setting (allows you to manually diagnose the navigation system)





System Links

1. 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 audio anti-theft code.

2. Select the icon you want to diagnose. Select the icon 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 shown in the block diagram.

- The results from the various components shown in the block diagram.

- The microphone is tested by listening to the bong sound produced by the 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 navigation unit is replaced you will see this screen every time you turn on the ignition.

When a navigation 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) 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 below to prevent the screen from showing up in the future:

- Press and hold the buttons (MENU, MAP/GUIDE, and 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.

- Press 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.

Detailed Information & Settings

These section allows 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 menu item Detail Information & Setting menu, the main diagnosis menu is displayed.






Monitor Check

Overview of navigation display

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. Select the item you want to troubleshoot, and follow the diagnostic instructions.






RGB Color

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 the picture has lines in it, or scrolls horizontally or vertically, and any of the colors are missing, troubleshoot for a composite sync and color signal 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 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 unit.






Touch Panel Check 1

The panel touch sensing system consists of a touch sensitive resistive membrane covering the display. Contrary to other systems using infrared beams, the screen has to be physically touched to make it work. The display has the capability of 479 touch locations (left to right), and 233 touch locations (top to bottom). The upper left hand corner is position (0, 0) and the lower right hand corner is (479, 233) as displayed. Touching anywhere on the screen displays the coordinate of the location, and a + icon appears where you touched the screen. If any area of the screen either doesn't respond, or responds at some other location when touched, then replace the navigation unit.

NOTE: Unlike earlier screens that used infrared sensors, direct sunlight does not affect this test.






Touch Panel Calibration

The display screen uses a touch sensitive membrane. This means that every location of the entire surface of the display is touch sensitive. This diagnostic allows alignment of these touch locations with the location of the buttons images on the screen.

Normally this should never need adjustment, and is used only to adjust the touch locations for parallax (the touch locations appear different when viewed at an angle). However, if an adjustment is necessary, follow this procedure:

- The screen consists of the + button icons. Touch the center of the five + buttons on order 1-5.

- To store any change you make, touch the Set button.

- Use the Return key to exit the diagnostic.





Color Pattern

The chart below 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 unit.






Monitor Adjustment

This allows you to center the navigation display. Use the joystick to move the picture up/down or left/right. It is unlikely that you will ever need to adjust the monitor position. The Default button resets the display position to factory specifications. The factory default is 0,0. The H-POS button is for factory use only.






Touch Panel Check 2

If you touch the any icons on the screen, the icon changes the color while pressing. If any icons of the screen either doesn't respond, replace the navigation unit.






Unit Check (Quick Check)

Some of the tests and screens that are displayed under the Unit Check are different from the more detailed checks.

To start the test, select the item you want to check.

- Display

- Radio

- GPS

- ECU Info.

- Rear Camera

- PC Card Info.

- Hard Key

- Yaw Sensor

- DVD

- Aircon

- HFL

- XM





Display

This performs additional checks on the communication bus between the navi CPU and the navigation display. In addition, this test checks the internal electronic functions.

If the connection is NG, replace the navigation unit.

- Connection verifies internal communications.

- Version represents the software version for the display.





Radio

This diagnostic screen checks the internals of the radio (AM and FM) and CD player. If NG, replace the navigation unit.






GPS

If GPS indicates NG (ANT), then check the entire GPS antenna wire from the navigation unit to the GPS antenna. If the wire is crushed or damaged, try a known-good antenna. If the diagnostic reads OK, replace the original GPS antenna. If the diagnostic still reads NG (ANT), replace the navigation unit.

Select information to see the GPS satellite details.






ECU Info.

This screen looks for problems in the navigation unit. When you initiate this diagnosis, the navigation unit may freeze or delay up to a minute while the diagnosis runs.

NOTE: Do not try to end this diagnostic by pressing OK or Mem clear before it finishes, otherwise the system may reboot.

- If V-RAM or D-RAM is NG, replace the navigation unit.

- DVD lid displays the state of DVD Lid of navigation unit.

- Program Flash: Displays the version of the navi software in memory.

- Program on DVD: If displayed, this value represents the version of the navi software on the navi DVD.

- DVD version represents the database version on the DVD. You can find this information in either the Setup Screen Version, or in the Diagnostic Screen Version.

- Serial No. should be the same as the serial number found on the underside of the navigation unit. You need this number to obtain the security code from the Interactive Network (iN) system.

- The Mem Clr is for factory use and should not be used unless instructed by the factory.
Selecting this will clear the customer's settings, personal information, GPS orbital data, and anything else stored in memory.





Rear Camera (Optional)

- If the optional rearview camera is connected, it appears as OK.

- It displays OFF when the optional rearview camera is not connected.





PC Card info.

There is no PC Card in the PC slot, and the screen should display, PC Card is not inserted.

NOTE: Do not insert any card or object into the slot.






If the factory provides a PC card and instructs you to insert it, the screen displays the Manufacturer, and Product Name as shown in the following screen.

Follow the instructions provided by the factory to complete the test.






Hard Key

This diagnostic screen checks the status of each of the hard buttons surrounding the navigation display. When you press each hard button, the corresponding item on the screen should flash blue. Touch the return key, or press and hold the joystick to exit.

NOTE: It is normal for the VOL (+, -) CH (+, -) and MODE button to be inactive.






Yaw Sensor

This screen gives a quick test of the yaw sensor functionality based on the two voltages Sensor and Offset. For more information see the Yaw Rate Diagnostic.






DVD

This diagnostic tests the navigation DVD reader.






HFL

This checks the 4 wire communication bus between the HFL and the navigation unit.






XM

- This checks the GA-NET Bus line to the XM receiver.

- When connection is shown with NG, check the connection between the XM receiver and the navigation unit.





Functional Setup

Select the item you want to check.

- Save Users Memory

- Demo Mode

- Mic Level