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

NOTE:

- Check the vehicle battery condition first Battery Test.
- Check the navigation volume level (see the Owner's Manual).
- Check the connectors for poor connections or loose terminals.
- Make sure that the correct navigation DVD color and version are installed.
- 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.

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

2. Press the SETUP button.

3. Check the 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?

YES -

Go to step 5.

NO -

Troubleshoot the audio system.

5. Clear the hard error code.

6. Turn the ignition switch to LOCK (0) and then back to ON (II).

7. Check for the hard error code.

Are there any navigation DTCs indicated?

YES -

Troubleshoot the indicated navigation DTC(s).

NO -

Go to step 8.

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

9. Disconnect navigation unit connector C (16P) and audio unit connector B (20P).

10. 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 navigation display unit. Replace the affected shielded harness.

NO -

Go to step 11.

11. Check for continuity between the terminals of navigation unit connector C (16P) according to the table.









Is there continuity between any of the terminals?

YES -

There is a short in the wires between the navigation unit and the audio unit. Replace the affected shielded harness.

NO -

Go to step 12.

12. Check for continuity between navigation unit connector C (16P) terminals No. 7 and No. 14 and audio unit connector B (20P) terminals No. 11 and No. 1 respectively.





Is there continuity?

YES -

Go to step 13.

NO -

There is an open in the wire(s) between the navigation unit and the audio unit. Replace the affected shielded harness.

13. Substitute a known-good audio unit Audio Unit Removal/Installation (With Navigation), and recheck.

Is the system OK?

YES -

Replace the original audio unit Audio Unit Removal/Installation (With Navigation).

NO -

Replace the navigation unit Service and Repair.