Voice Guidance Cannot Be Heard, Is Broken Up, or There Is Static

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.
- Check the connectors for poor connections or loose terminals.
- If the hard error code stored, check the hard error code troubleshooting first.
- Make sure that the latest navigation software is installed.
- Before troubleshooting, make sure you have the anti-theft code.
- After troubleshooting, enter the anti-theft code.

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

2. Press the INFO button.

3. Check the volume and voice feedback setting for the navigation system in SETUP screen.

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. Clear the hard error code.

6. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, then back to ON (II), or the ON mode.

7. Check for the hard error code.

Are there any hard error codes stored?

YES -

Refer to the hard error code troubleshooting.

NO -

Go to step 8.

8. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

9. Disconnect audio-navigation unit connector B (24P).

10. Disconnect stereo amplifier connector B (28P).

11. Check for continuity between body ground and audio-navigation unit connector B (24P) terminals No. 20 and No. 22 individually.





Is there continuity?

YES -

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

NO -

Go to step 12.

12. Check for continuity between the terminals of audio-navigation unit connector B (24P) according to the table.









Is there continuity between any of the terminals?

YES -

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

NO -

Go to step 13.

13. Check for continuity between audio-navigation unit connector B (24P) terminals No. 20 and No. 22 and stereo amplifier connector B (28P) terminals No. 21 and No. 9 respectively.





Is there continuity?

YES -

Substitute a known-good stereo amplifier Service and Repair, then reconnect all of the connectors, and recheck. If the symptom/indication goes away, replace the original stereo amplifier Service and Repair. If the symptom/indication is still present, replace the audio-navigation unit Audio-Navigation Unit Removal/Installation.

NO -

There is an open in the wire between the audio-navigation unit and the stereo amplifier. Replace the affected shielded harness.