No Sound Is Heard From The Speaker(s) (Display Is Normal) (Without Navigation)

Audio System Symptom Troubleshooting - No sound is heard from the speaker(s) (display is normal)

No sound is heard from the speaker(s) (display is normal) (without navigation)

NOTE:

- Check the vehicle battery condition first 12 Volt Battery Test.
- Check the connectors for poor connections or loose terminals.
- Do the individual speaker test.
- Set the fader and the balance positions to the center.

1. Turn the ignition switch to ON.

2. Make sure the volume is not set to the MIN level, and check for sound in all modes (AM/FM, CD, USB).

Is there sound in all modes, and is the sound normal?

YES -

System is OK at this time. Check for poor connection at the audio unit and speakers.

NO -

- If there is no sound in all modes, go to step 3.
- If there is no sound in AM/FM mode, go to AM or FM radio reception interference Symptom Troubleshooting.
- If there is no sound in CD mode, go to the audio disc does not play Symptom Troubleshooting.
- If there is no sound in the USB mode, go to the USB input sound is low or cannot be heard Symptom Troubleshooting.

3. Do the speaker check mode with the self-diagnostic function.

Did all speakers produce a tone?

YES -

- Except DX model: Substitute a known-good audio unit, and recheck. If the symptom goes away, replace the original audio unit.
- DX model: Substitute a known-good audio unit, and recheck. If the symptom goes away, replace the original audio unit.

NO -

Go to step 4.

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

5. Check the speaker(s) with no sound for any damage.

Is there any damage?

YES -

Replace the speaker(s) Speaker Test/Replacement, and recheck.

NO -

Go to step 6.

6. Remove the speaker(s) with no sound, and disconnect its connector.

7. Check the speaker 2P connector for a loose or poor connection.

Reconnect the speaker 2P connector, and recheck the symptom; is the condition still present?

YES -

Go to step 8.

NO -

Intermittent failure. Operation is normal.

8. Test the speaker(s) Speaker Test/Replacement.

Is the speaker OK?

YES -

- Except DX model: Go to step 9.
- DX model: Go to step 17.

NO -

Replace the speaker(s) Speaker Test/Replacement.

9. Reconnect the speaker connector(s).

10. Remove the audio unit Audio Unit Removal / Installation, and disconnect audio unit connector A (24P).

11. Check for continuity between body ground and audio unit connector A (24P) according to the table.

NOTE: If no sound is heard from all speakers, check all the wiring for short(s).













Is there continuity?

YES -

Repair a short to body ground in the wire(s) between the audio unit and the speaker(s).

NO -

- With tweeter: Go to step 12.
- Without tweeter: Go to step 13.

12. Disconnect the left tweeter 2P connector and the right tweeter 2P connector.

13. Measure the resistance between each pair of speaker terminals at audio unit connector A (24P) according to the table.









Is there about 4 Ohms?

YES -

- With tweeter: Go to step 14.
- Without tweeter: Substitute a known-good audio unit, and recheck. If the symptom/indication goes away, replace the original audio unit.

NO -

Repair an open or a short in the wire(s) between the audio unit and the speaker.

14. Disconnect the connectors from the front speaker.

15. Connect the tweeter 2P connector terminal (+) and (-) with a jumper wire.










16. Check for continuity between each pair of speaker terminals at audio unit connector A (24P) according to the table.









Is there continuity?

YES -

Substitute a known-good audio unit, and recheck. If the symptom/indication goes away, replace the original audio unit Audio Unit Removal / Installation.

NO -

Repair an open in the wire(s) between the audio unit and the speaker.

17. Reconnect the speaker connector(s).

18. Remove the audio unit, and disconnect audio unit connector A (17P).

19. Check for continuity between body ground and audio unit connector A (17P) according to the table.

NOTE: If no sound is heard from all speakers, check all the wiring for short(s).









Is there continuity?

YES -

Repair a short to body ground in the wire(s) between the audio unit and the speaker(s).

NO -

Go to step 20.

20. Measure the resistance between each pair of speaker terminals at audio unit connector A (17P) according to the table.









Is there about 4 Ohms?

YES -

Substitute a known-good audio unit, and recheck. If the symptom/indication goes away, replace the original audio unit.

NO -

Repair an open or a short in the wire(s) between the audio unit and the speaker.