Symptom Troubleshooting

Navigation System Symptom Troubleshooting - Voice guidance cannot be heard, is broken up, or there is static

Voice guidance cannot be heard, is broken up, or there is static

Diagnostic Test: Navi System Link

NOTE:

- Check the vehicle battery condition first Testing and Inspection.
- Check the connectors for poor connections or loose terminals.
- Check the navigation volume level (see Owner's Manual).
- Inspect the navigation DVD for dirt or damage.
- Before troubleshooting, make sure you have the anti-theft codes for the audio system and the navigation system.
- After troubleshooting, enter the anti-theft codes for the audio system and the navigation system.
- The voice guidance is provided by the right front speaker. When you check the audio system function, make sure all speakers are working OK. Do the individual speaker test.

1. Turn the ignition switch to ON (II).

2. Press the display unit SET-UP button.

3. Check the volume and volume and voice feedback setting for the navigation system in set-up.

Is either set to OFF?

YES -

Set the voice feedback to ON, and select an audible level for the volume.�

NO -

Go to step 4.

4. Check the audio system operation.

Can you hear the audio system?

YES -

Go to step 5.

NO -

Troubleshoot the audio system.�

5. Go into the Diagnostic Mode, and use the Navi System Link diagnostic to check the radio.

Is the Radio icon red?

YES -

Troubleshoot the audio system.�

NO -

Go to step 6.

6. Turn the ignition switch to LOCK (0).

7. Disconnect navigation unit connector B (14P) and audio unit connector A (20P).

8. Check for continuity between body ground and navigation unit connector C (16P) terminals No. 7, and No. 14 individually.





Is there continuity?

YES -

There is a short to body ground in the wire(s) between the navigation unit and the audio unit. Replace the affected shielded harness.�

NO -

Go to step 9.

9. Check for continuity between navigation unit connector C (16P) terminals No. 13 and No. 7, and terminals No. 13 and No. 14.





Is there continuity?

YES -

There is a short to body ground in the wire(s) between the navigation unit and the audio unit. Replace the affected shielded harness.�

NO -

Go to step 10.

10. Check for continuity between navigation unit connector C (16P) terminal No. 7 and the audio unit connector A (24P) terminal No. 9.





Is there continuity?

YES -

Go to step 11.

NO -

There is an open in the wire between the navigation unit and audio unit. Check for poor connections or loose terminals at the audio and navigation units. If no poor connection or loose terminal is found, replace the affected shielded harness.�

11. Check for continuity between navigation unit connector C (16P) terminal No. 14 and the audio unit connector A (24P) terminal No. 8.





Is there continuity?

YES -

Go to step 12.

NO -

There is an open in the wire between the navigation unit and audio unit. Check for poor connections or loose terminals at the audio and navigation units. If no poor connection or loose terminal is found, replace the affected shielded harness.�

12. Substitute a known-good navigation unit Service and Repair, and recheck.

Is the system OK?

YES -

Replace the navigation unit Service and Repair.�

NO -

Replace the original audio unit Audio Unit Removal/Installation.�