FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Part 2




Navigation System Diagnostic Mode

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 under other menu options.

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

- Display
- Radio
- GPS
- Aircon
- HFL
- USB Memory Information
- Sub Display
- Hard Key
- Yaw Sensor
- ECU Info.
- Rear Camera
- XM (Canada models)
- Smart Card
- HDD
- DVD Mech

USA models





Canada models










Display

This diagnosis checks on the communication bus between the audio-navigation unit and the navigation display unit. This test also checks the internal electronic functions.

- If Connection shows NG, the GA-Net bus line may be failure. Check for hard error codes.
- The version represents the software version in the display.





Radio

This diagnosis checks the audio-navigation unit internal radio tuner and CD/DVD player. If Connection shows NG, replace the audio-navigation unit Audio-Navigation Unit Removal/Installation.

NOTE: If the XM link appears red, but the radio link appears green in the System Links, do the XM self-diagnosis.





GPS

This diagnosis checks the GPS antenna connection and the GPS receiver condition.

- If Antenna shows NG, the GPS antenna may be failure. Check for hard error codes.
- Select Information to see the GPS satellite details.





Aircon

This diagnosis tests the climate bus connection (NAVI SI and NAVI SO) between the audio-navigation unit and the climate control unit. Make sure the engine is running for this test.

If Connection shows NG, the bus line may be failure. Check for hard error codes.





HFL

This diagnosis checks the 4 wire communication bus between the HandsFreeLink control unit and the audio-navigation unit.

If Connection shows NG, the bus line may be failure. Check the HFL function and check for hard error codes.






USB Memory Information

If the USB memory is connected to the USB port, the screen displays the USB memory size, the Product ID, Vender ID, and connection status.

If Connection shows NG, Check for poor connections or loose terminals at audio-navigation unit connector K (7P).






Sub Display

This diagnosis checks the connection between the audio-navigation and HVAC switch panel and the audio-navigation unit. If Connection shows NG, check for hard error codes.






Hard Key

This diagnosis checks the interface dial, the buttons that surround it, the audio remote switch, and the HFL-navigation voice control switch. For this model, the interface dial and buttons use the serial bus for communications.

To complete the test, press each button on the vehicle's control panel, and move the interface dial to each indicated position. As each function is tested, the corresponding button on the display should highlight.

To exit, press and hold the interface dial.

NOTE: You cannot use the on screen return button to exit this function.






Select Steering Key





Select Audio Key





Select Navi Key





Yaw Sensor

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





ECU Info

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

- If D-RAM shows NG, replace the audio-navigation unit Audio-Navigation Unit Removal/Installation.
- Program Flash: Displays the version of the navigation software in memory.
- Program on HDD: If displayed, this value represents the version of the navigation software on the audio-navigation unit HDD.
- Program on DVD: If displayed, this value represents the version of the navigation software on the audio-navigation unit DVD player.
- Serial No. should be the same as the serial number found on the upper side of the audio-navigation unit. You need this number to obtain the security code from the iN system.
- DB Version: Displays the version of the database on the audio-navigation unit HDD.
- HDD Version: Display the version of the audio-navigation unit HDD.
- D-RAM check is for factory use only.





Rear Camera

This diagnosis checks whether the rearview camera is connected to the navigation display unit.

If Connection shows NG, the rearview camera signal line may be failure. Check for hard error codes.





XM (Canada models)

This diagnosis checks the GA-Net Bus line between the audio-navigation unit and the XM receiver.

If Connection shows NG, the GA-Net Bus line may be failure. Check for hard error codes.






Smart Card

If the remotes are linked to the vehicle, you can check the remote condition on this screen.






HDD

This screen shows the HDD mount error and the temperature.

The screen shows a list of total and free capacities of each partition.

Select the Error History will display the error history that occurred while reading or writing the data to the HDD.

- If HDD Status shows OK, the connection between the HDD pins and the audio-navigation unit are good.
- If HDD Status shows NG*, replace the HDD HDD Removal / Installation.

*: If HDD Status shows NG, the screen does not show the free and total capacities of each partition, however, it shows the temperature.