Accessing the Navigation Diagnostic Self-Test Features
To enter the navigation self-diagnostic mode, perform the following procedure:
- Turn the ignition to ACC, with the engine OFF.
- Turn the radio ON and insert the map disc.
- Press and hold the "TA" button on the navigation radio while
turning the exterior lights ON and OFF 3 times.
- The navigation System Check Mode screen is displayed. Select "Menu"
in upper right corner of the screen.
- The Diagnosis Menu is displayed.
Service Check
Selecting "Service Check" will return to the Diagnostic System Check
screen. This can be used when a repair or adjustment has been made and the Diagnostic
System Check needs to be performed again.
Display Check
Selecting "Display Check" will display the Display Check menu. The
following test options can be selected:
| • | Color Bar Check -- Color bars are displayed with the corresponding
color name above each bar. The entire screen is changed to the color which is selected
in the color bar check mode . These bars can be compared with the Color Bar Check
in the Navigation Check to insure that no difference is found. If the colors are
not correct, replace the navigation radio. Refer to
Radio Replacement
. |
| • | Remote Commander Check -- The name of the panel switch button being
depressed will be displayed. If one or more of the buttons are not working properly
replace the navigation radio. Refer to
Radio Replacement
in Entertainment. |
| • | Vehicle Signal Check -- The inputs from the following sensors will
be displayed: |
| - | Reverse -- Reverse signal status displayed as ON when vehicle is
in reverse and OFF when vehicle is not in reverse. The navigation system uses this
input in conjunction with other inputs to determine the vehicles direction of travel.
If this signal is not received check the Backup Lamp Switch circuit on manual transmission
vehicles and the Park/Neutral Position Switch circuit on automatic transmission vehicles.
Refer to
Navigation System Schematics
. |
| - | Speed -- Indicates current speed of the vehicle. The navigation
system uses this input in conjunction with other inputs on order to determine the
vehicles position. If this input is not received check the Vehicle Speed Sensor circuit.
Refer to
Navigation System Schematics
. |
| - | Tail -- Status of the park lamps displayed as ON/OFF. This signal
is used to dim the display and access the diagnostic mode. If this signal is not
received, the Diagnostic System Check and the Diagnostic Self-Test cannot be accessed.
Check the Park Lamp Input circuit. Refer to
Navigation System Schematics
. |
Navigation Check
Selecting "Navigation Check" will display the Navigation Check menu.
The following test options can be selected:
| • | GPS Information displays the following: |
| - | Satellite Information and status of the satellites being captured by the
GPS. The number of satellites being captured may depend on the location of the vehicle.
Buildings and other large structures may limit or prohibit the reception of satellites. |
| - | Vehicle Position data including current Latitude and Longitude displayed
in degree, minute and second |
| - | Time Data indicates date and time obtained from the GPS receiver. |
| - | Measurement Status indicates the dimension of measurement or the status
of reception. |
| • | Vehicle Sensors displays the following: |
| - | Reverse signal status displayed as ON when vehicle is in reverse and OFF
when vehicle is not in reverse. The navigation system uses this input in conjunction
with other inputs to determine the vehicles direction of travel. If this signal is
not received, check the Backup Lamp Switch circuit on manual transmission vehicles
and the Park/Neutral Position Switch circuit on automatic transmission vehicles.
Refer to
Navigation System Schematics
. |
| - | Speed Pulse Count indicates the cumulative value of input pulse count.
If this input is not received, check the Vehicle Speed Sensor circuit. Refer to
Navigation System Schematics
. |
| - | Vehicle Speed in mph and km/h -- The navigation system uses this
input in conjunction with other inputs in order to determine the vehicles position.
If this input is not received, check the Vehicle Speed Sensor circuit. Refer to
Navigation System Schematics
. |
| - | Output signal of the gyro sensor voltage -- The gyro is located inside
the navigation radio. The navigation system uses this input in conjunction with other
inputs to determine vehicle direction. If this input is not received, replace the
navigation radio. Refer to
Radio Replacement
in Entertainment. |
| - | Relative bearing in degrees compared to the vehicles bearing when the
ignition was turned ON. |
| - | Color bars are displayed with the corresponding color name above each
bar. |
| - | These bars can be compared with the Color Bar Check in the Display Check
to insure that no difference is found. If the colors are not correct, replace the
navigation radio. Refer to
Radio Replacement
in Entertainment. |
| • | Parts Information displays the following: |
| - | Navigation program version information |
| - | Disc version information |
Exiting the Navigation Diagnostic Self-Test Features
To exit the navigation self-diagnostic mode, turn the ignition to OFF.
