Satellite Navigation System Diagnosis Test

Accord 03-08

  1. Ichiban
    Use this guide to troubleshoot any 7th Generation accord sat nav issue or how you would get into the sat nav diagnostic menu.

    Start-up procedure and Diagnosis Menu
    Turn the ignition switch ON (II) and start the engine, press ‘‘OK'' on the disclaimer screen, then press and hold the keys in this order: (1) MENU Key. (2) MAP/GUIDE Key, (3) CANCEL Key, and keep them pressed simultaneously for 5 seconds.
    After the display changes to the diagnosis menu screen, touch the item you want to check, and the check will start. To return to the previous screen, touch the ‘‘RETURN'' switch on the diagnosis screen.
    • System Links
    • Tire-Calibrate
    • Monitor Check
    • Yaw Rate
    • Unit Check
    • Cyclic Diag
    • In-line Diag
    • Vehicle Position
    • Start Demo Mode
    7th gen Navigation System Diagnosis Test -HK1.JPG

    System links
    • During diagnosis, all of the communication lines connecting the components are shown in yellow.
    • If the system is OK, all of the communication lines connecting the components will change to green, the screen will indicate ‘‘OK'', and a tone will sound.
    • If there is a problem in the system, the faulty communication line will change to red, the screen will indicate ‘‘NG'' (No Good), and a tone will sound.
    • The indication on the screen will not change until the ignition switch is cycled. After repairing the system, turn the ignition switch OFF to reset the system, then return to the diagnosis menu screen, and run system links again.
    7th gen Navigation System Diagnosis Test -HK2.JPG

    Tyre Calibrate
    The ‘‘AUTO TUNING'' is factory-set to ‘‘ON'', and it should remain on. If you find it has been turned OFF, turn it back ON.
    The ‘‘TIRE-CAL TUNING'' should not be used. The AUTO TUNING function keeps the system in better tune.

    7th gen Navigation System Diagnosis Test -HK3.JPG

    Yaw Rate
    ‘‘Offset'' is a reference voltage or standard within the yaw rate sensor. It should indicate 1.500 to 3.500 V with the vehicle stopped.
    ‘‘Sensor'' indicates the voltage output from the yaw rate sensor. It should indicate 1.500 to 3.500 V with the vehicle stopped.
    A ‘‘Sensor'' output voltage HIGHER than that of the ''Offset'' voltage indicates the vehicle is turning to the RIGHT.
    A ‘‘Sensor'' output voltage LOWER than that of the ''Offset'' voltage indicates the vehicle is turning to the LEFT.
    With the vehicle stopped, sitting still, with the engine idling both the ''Offset'' and ''Sensor'' voltages should be within 0.01 V ± of each other.
    If not replace the Navigation unit.
    Example:
    NOTE: The vehicle is stopped, sitting still, with the engine idling.
    Good
    Offset 2.517 V
    Sensor 2.517 V (0.010 V ±)
    Offset 2.517 V
    Sensor 2.823 V

    NOTE: Do not try to tune the yaw rate sensor unless instructed by Honda Motor Europe.

    7th gen Navigation System Diagnosis Test -HK4.JPG

    Monitor Check
    Touch the item you want to check, and the check starts.

    7th gen Navigation System Diagnosis Test -HK5.JPG

    RGB Colour
    The three primary colours of red, green and blue must be shown.
    if there any missing colours then it loose connections at the back of the unit, and other factors.

    7th gen Navigation System Diagnosis Test -HK6.JPG

    White Raster
    The entire display must be shown in white.

    7th gen Navigation System Diagnosis Test -HK7.JPG

    Touch Test
    Each switch must be shown on the display and each switch must reverse and sound, when touched.
    NOTE: The test may be affected if done in direct sunlight.

    7th gen Navigation System Diagnosis Test -HK8.JPG

    Test Pattern
    All 32 colours including black must be indicated (including the back ground colour).

    7th gen Navigation System Diagnosis Test -HK9.JPG

    Gray Tone
    The Gray colour should change.

    7th gen Navigation System Diagnosis Test -HK10.JPG

    Black Raster
    The entire display must be shown in black.

    7th gen Navigation System Diagnosis Test -HK11.JPG

    Screen Adjustment
    Change the indicating position using the joystick.
    Touch the return to set the changing data.

    7th gen Navigation System Diagnosis Test -HK12.JPG

    Unit Check
    Touch the item you want to check, and the check starts.
    NOTE: Do not use ‘‘Backup Clear'' and ‘‘Force Download''. These commands are for the manufacturer's use only. I have used force download to test but nothing drastic happened, but don't over do it.

    7th gen Navigation System Diagnosis Test -HK13.JPG

    Display
    When the connection is NG.
    First check for loose terminals at the navigation unit and the display unit connectors.
    Next check for an open or short in the communication line between the navigation unit and the display unit. If the line is OK, replace the display unit. If the line is found to have an open or short, replace the affected shielded harness.

    7th gen Navigation System Diagnosis Test -HK14.JPG

    Navi ECU
    When any item is NG, replace the navigation unit.

    7th gen Navigation System Diagnosis Test -HK15.JPG

    GPS Information
    This screen shows the condition of the GPS reception and the vehicle position.
    The vehicle should be parked out side away from building, tall trees, high tension lines for 10 minutes with motor running.

    The number of satellites box should contain at least three yellow satellite icons.

    7th gen Navigation System Diagnosis Test -HK16.JPG

    Car Status
    Use the car status screen to check each signal.
    If the indication does not match the actual vehicle status, check the applicable signal line.
    • VSP (vehicle speed pulse indication)
    - OFF when vehicle is not moving
    - ON when vehicle is moving
    • BACK (reverse indication)
    - OFF when shift lever is in any position other than reverse
    - ON when shift lever is in reverse
    • ILL (illumination indication)
    - OFF when parking lights or headlights are off
    - ON when parking lights or headlights are on

    7th gen Navigation System Diagnosis Test -HK17.JPG

    Cyclic Diag
    This test is for manufacturer's use only. In this test, the system checks the following items repeatedly:
    • Navi ECU unit check
    • RGB color
    • Test pattern
    • White raster
    • Black raster
    To exit this test, press the cancel key.
    PeteMM likes this.

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  1. brabourn
    brabourn
    5/5,
    Really useful post. Thanks