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Start-up procedure and Diagnosis Menu




1. Turn the ignition switch to the ON (II) position.
Press and hold the Menu, the Map/Guide, and the Cancel buttons. Keep them pressed for approximately 5 seconds or jumper the 2-pin SCS service connector. The display screen then goes directly to the Diagnostic Menu.

NOTE:
- This only allows access to the diagnostic screens. All other Navigation functions are disabled.
- When you finish troubleshooting, make sure you remove the SCS service connector.

2. After the display changes to the Diagnostic Menu, select the item you want to check, and the test will start. To return to the previous screen, select "Return".
- Navi System (Link)
- Monitor Check
- Unit Check
- Car Status
- F-CAN
- GPS Information
- Yaw Rate
- Tire Calibrate
- Functional Setup
- Version

Navi System Link




- This diagnostic tests the cables connecting the navigation components. Ensure that the ignition switch is in the ON (II) position. When the diagnostic begins, you hear a "bong" sound. The system is in a "Detecting" mode, and is waiting for all items in white to be tested. This includes the voice control switch (TALK/BACK buttons), and microphone.
- Press the TALK button on the steering wheel, and in a normal voice, say "testing". The Talk indicator on the screen should turn green, and the voice level indicate should move to at least the 6th bar to pass. Next, press the BACK button. The "back" indicator should turn green.
- If all of the communication lines connecting the system components, and the TALK/BACK buttons/microphone check out OK (all block diagram items are green), then the "OK" indicator turns green.
- If there is a problem with the system, the faulty system component item turns red, and the screen will show"NG" in red. Use the troubleshooting index, and other diagnostic screens to help locate the problem.
- The indication on the screen will not change until you cycle the ignition switch. After repairing the affected cable or system, repeat this diagnostic.

NOTE: Green boxes and green "OK" indicate that the communications lines (cables) are intact. This diagnostic does not necessarily imply that the individual components are functioning properly. For instance, the GPS antenna wire may be crushed, but still show as "green". A road test, or other diagnostic may be necessary to find the problem. Additionally the rear camera is optional. If the vehicle has the rear view camera installed, the indication will be green, otherwise the indication is a yellow color-this is normal.

- Select "Return" to return to the Diagnostic Menu or the "Exit Diag" button to exit.

NOTE: The Mic Level indicator must reach the 6th bar or greater to pass the test.




Diagnostic Function Diagram
This diagram shows the diagnostic slice of the System Function Diagram. It has the diagnostic features of the
navigation system starting at the center and working outward in layers. The diagnostic starts at "Key ON," and then
displays the Diagnostic Main Menu (Select Diagnosis items) after
The diagram shows the available menu choices starting at the bottom left and moving clockwise.
You will find a detailed explanation of each feature on the given page numbers.
In most cases, do not clear or change settings in any diagnostic screen unless instructed to do so in the explanation or
by the factory. If the factory supplies you with a PCMCIA card to place in the PC slot, then the features specified in the
diagram with "Card" are available.

- Starting the vehicle with the SCS connector plugged in to the navigation service check connector to get to the System Links screen, then selecting Return.
- Simultaneously pressing and holding the MENU, MAP/GUIDE, and CANCEL buttons.

Monitor Check




Overview of the navigation display

- The navigation display communicates with the navigation unit over its own GA-Net bus. Information is sent to the navigation unit whenever the user activates the touch screen or buttons. Information sent by the navigation unit to the navigation display includes commands to control the LCD back light.
- This security system protects the navigation display 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. Select the item you want to troubleshoot, and follow the diagnostic instructions.

- RGB Color
- Gray Tone
- White Raster
- Black Raster
- Color Pattern
- Monitor Adjustment
- Touch Panel Check
- Touch Panel Calibration

RGB Color




This screen verifies that the navigation display is receiving the video (R, G, B and Composite sync) signals properly. The three primary colors should all be shown 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. If the picture has lines in it, or scrolls horizontally or vertically, troubleshoot for a Composite sync problem.

Gray Tone




This scree if it looks for problems with contrast. You should be able to see the changes from bar to bar across the scale. It is normal for the 2 bars on either side to appear the same.

White Raster




The entire display must be in white.

Black Raster




The entire display must be in black.

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" test.

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 will reset the display position to factory specifications. The factory default is 0.0.

Touch Panel Check




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 an almost infinite number of touch locations. However, to be compatible with earlier systems, the software only senses the locations shown on the diagnostic screen below. Every possible touch button position is shown on this diagnostic screen. Touching one of these areas should cause its color to reverse, and the sound a "beep". If the touch locations are off slightly (by less than one touch location), use the "Touch Panel Calibration" diagnosis to re- align the touch "zones" with the screen image. If any areas of the screen either don't respond, or respond at some other location when touched, then replace the navigation display.

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

Touch Panel Calibration




The display screen uses a touch sensitive membrane instead of fixed infrared "beams". This means that every location of the entire surface of the display is touch sensitive.
For the display to be compatible with earlier navi systems, the system software creates "touch zones" emulating the touch "switches" created by the intersections of 20 vertical and 10 horizontal infrared beams. This diagnostic allows alignment of these artificially created "zones" with the location of the buttons images on the screen.
Normally this should never need adjustment, and it 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 four test areas consisting of a "+" button and an adjacent box with a black border. Touch the four"+" buttons to verify alignment. If you touch a "+" button, and the adjacent box becomes yellow, then do the following. Continue to hold the "+" button, and simultaneously move the joystick to shift the screen slightly from side to side, or up and down. The adjustment is complete when you can touch all four"+" boxes and none of the adjacent boxes turns yellow.
- To store any changes you make, push in the joystick.
- To reset the touch zones to the factory default, touch the Map/Guide button.
- Press Return to exit the diagnostic.

Unit Check




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

- Display
- Radio
- Navi ECU
- PC Card Info
- Hard Key

Display




This performs additional checks on the communication bus between the control unit and the display. In addition, the internal electronics and touch screen functionality are confirmed.
- When the connection is NG, first check for loose terminals at the navigation unit, the navigation display, the audio unit, and the CD changer connections. Next, check for an open or short in the communication line between the navigation unit, the navigation display, the audio unit, and the CD changer. If you find the line has an open or short, replace the affected shielded harness.
- If the ROM or RAM is NG, replace the navigation display.
- The version represents the software version in the display.

Radio




This diagnostic checks the audio connections. If not OK, do the troubleshooting for the audio system.

Navi ECU




This screen looks for problems with the navigation unit. When you initiate this diagnostic, the navigation unit may delay up to a minute while the diagnostic runs.

- If the "V- RAM" or "D- RAM" is NG, then replace the navigation unit.
- If the "GPS" indicates "NG (ANT)", then check the entire GPS antenna wire from the navigation unit to the antenna. If the wire is crushed or damaged, try a known good antenna. If this diagnostic reads OK, then order a new GPS antenna. If the diagnostic still reads NG (ANT), then replace the navigation unit.
- "DVD ROM" represents the database version on the DVD. You can also find this information in setup by selecting System Information.
- "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.
- "Mem Clear" is for factory use, and should never be used unless instructed by the factory. Accidental selection will erase the customer's personal data, PINS, and settings. If selected, a popup box is appears asking if you want to clear the memory. If so, select "Yes".

PC Card info







There is no PC Card in the PC slot, and the screen should say, "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 a card, then the screen displays the Manufacturer, and Product Name as shown in the following screen.

NOTE: the "FILES" is for factory use only.

Hard Key




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

Car Status

Use this screen to confirm that the navigation unit is properly receiving input signals. Signals equal to (0) are OFF, and signals equal to 1. are ON. If the value on the display does not match the actual vehicle status, then check the wire carrying the signal.
- VSP- Vehicle Speed Pulse from PCM (Pin 6 of 8-Pin connector)
a OFF (0) when vehicle is not moving
b ON 1. when vehicle is moving
The VSP comes from the PCM as a dedicated signal. Internally, the navigation unit compares the actual VP on the map against street data to adjust the pulse to speed scaling factor. As this scaling factor becomes more accurate, the "Level" gradually increases from 0 to 10.

- BACK- Reverse indication from the taillight relay (Pin 5 of 8-Pin C-connector)
a OFF (0) when the shift lever is in any position other than reverse
b ON 1. when the shift lever is in reverse

The Back signal is used by the navigation unit to allow the map screen to show the VP moving backwards when in reverse, and to trigger the optional rear view camera. This signal is needed because the Speed Pulse does not provide any directional information to the system.

- ILL CANCEL
a OFF (0) when the gauge assembly brightness control is not set to maximum brightness.
b ON 1. when the gauge assembly brightness knob is at full bright.
The illumination cancel feature comes from the meter message in F-CAN.

- ILL-illumination Indication
(Pin 5 of the navigation unit 20-Pin A-connector)
a OFF (0) when the parking lights, or headlights are off
b ON 1. when the parking lights, or headlights are on

The navigation unit uses the signal to determine whether to put the navigation screen into the Day or Night brightness mode. (Setup screen 1)

- DVD Lid-senses if the DVD door is open
a (Close) when the door is closed
b (Open) when the door is open




The navigation unit has a microswitch to detect this. If open is indicated when the door is closed, replace the navigation unit.