Part 1
Navigation System Diagnostic Mode
Start-Up Procedure and Diagnostic Menu
1. 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, DEST, and CANCEL), 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 (allows you to manually diagnose the navigation system)
System Links
1. Select 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.
2. Touch the icon you want to diagnose, then 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 external 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 long 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 re-enter 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.
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, you will see this screen every time you turn on the ignition. Sometimes this screen also appears after you replace the audio-navigation unit with a new or remanufactured unit.
When an audio-navigation unit is powered up for the first time at the factory, 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 MAP/GUIDE, the DEST, and the CANCEL buttons for about 3 seconds (the Select Diagnosis items screen appears).
- 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. The In Line Diag should not appear again.
Detailed Information & Settings
This 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.
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
- Unit Check
- Car Status
- Version
- F-CAN
- Log Data
- GPS Information
- Yaw Sensor
- Error History
- Functional Setup
- B-CAN (Not available in this model (grayed out))
Monitor Check
Overview of the navigation display.
The illumination input from the gauge brightness control with the headlights on 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, or scrolls horizontally troubleshoot for the color signal and composite sync problem.
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 audio-navigation unit Audio-Navigation Unit Removal/Installation.
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 audio-navigation unit Audio-Navigation Unit Removal/Installation.
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 audio-navigation unit Audio-Navigation Unit Removal/Installation.
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.
Monitor Adjustment
This screen allows you to adjust the navigation display. 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 joystick to move the picture up/down or left/right. then select the Set to save the selection. Do not adjust the monitor position unless directed by a service bulletin. The Default resets the display position to factory specifications.
Rear Camera
If you selected the Rear Camera, use the joystick to move the picture up/down or left/right. then select the Set to save the selection. Do not adjust the monitor position unless directed by a service bulletin. The Default resets the display position to factory specifications.
Touch Panel Check
The panel touch sensing system consists of a touch sensitive resistive membrane covering the display. 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 displays a + icon. If any area of the screen either doesn't respond, or responds at some other location when touched, replace the audio-navigation unit Audio-Navigation Unit Removal/Installation.
NOTE:
- Unlike earlier screens that used infrared sensors, direct sunlight does not affect this test.
- A box appears after you touch the screen.
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.
This should never need adjustment, and is used only by the factory to adjust the touch locations for parallax (the touch locations appear different when viewed at an angle). If you are directed to make an adjustment by the factory or other service information, 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.
Unit Check (Quick Check)
Some of the tests and screens that are displayed under the Unit Check are different from the more detailed checks listed in other areas of this service information.
To start the test, select the item you want to check.
- Display
- Hard Key
- XM (Not available in this model (grayed out))
- Air-con
- Rear Camera
- TMC Status (USA models)
- USB Memory Info
- Navi ECU
- HFL
- GPS Antenna
- Radio
- i-MID (Not available in this model (grayed out))
Display
This diagnostic mode additional checks on the communication bus between the navigation CPU and the navigation display. In addition, this test checks the internal electronic functions.
- If the connection is NG, replace the audio-navigation unit Audio-Navigation Unit Removal/Installation.
- Version represents the software version for the display.
Hard Key
This diagnosis tests the navigation hard buttons surrounding the navigation display, the HFL-voice control switch, and the audio remote switch.
- To complete the test, press each button, and move the joystick to each indicated position. As each function is tested, the corresponding button on the display should highlight.
- To exit, press and hold the ENTER.
Select NAVI Key
Select Steering Key
Select AUDIO Key
Air-con
This diagnostic tests the climate bus connection (AC-SI and AC-SO) between the audio-navigation unit and climate control unit. Make sure the engine is running for this test.
NOTE: If this test is run with the ignition switch in ACCESSORY(I), the result will be NG.
Rear Camera
This tests checks whether rearview camera is connected to the audio-navigation unit. When connection is shown NG, check the rearview camera signal line.
TMC Status (USA models)
This diagnosis checks the current state of the RDS-TMC reception.
- Provider Count: The number of providers that can be received.
- Frequency: Frequency receiving at this time.
To start the TMC status check, select the Provider Count and Frequency you want to check, then select Start.
There are two modes to check the TMC status. The modes cannot select manually:
- Synchronous mode
- Asynchronous mode
This diagnosis checks the following status. Block Search Time, Uncorrected Blocks/min, and Message Counter are indicated at the Synchronous mode only.
- Field Strength: Displays reception sensitivity with 0-15;
- 0-5: No signal
- 6: Weak or intermittent signal
- 7-8: Marginal signal
- 9-15: Good signal
- Block Search Time: Displays the time until changing to the Synchronous mode.
- Uncorrected Blocks/min: Displays the number of block errors per one minute.
- Message Counter: Displays the number of message that is received.
- Error Status: Displays RDS error status;
- 0: No error
- 1: Cannot receive TMC
- 2: Bus error
- 3: Decoder error
- 4: Undefined error
