With Navigation

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

No sound is heard from the speaker(s) (display is normal) (with navigation system)

NOTE:

- Check the vehicle battery condition first Battery Test.
- Check the connectors for poor connections or loose terminals.
- Set the fader and balance positions to the center.
- Before doing the troubleshooting, do the Audio unit power switch will not turn on troubleshooting With Navigation System.

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

2. Turn on the audio-navigation unit, and make sure the volume button is not set to the MIN level.

Is it at the MIN level?

YES -

Raise the volume level, and recheck the function.�

NO -

Go to step 3.

3. Check for sound in each mode (AM, FM, and CD or DVD).

Is the sound OK in each mode?

YES -

Intermittent failure. The system is OK at this time. Check for loose connections at the audio-navigation unit and speaker(s).�

NO -

Go to step 4.

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

5. Disconnect the HandsFreeLink control unit 28P connector.

6. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, and recheck the audio system for sound.

Did the sound return?

YES -

Replace the HandsFreeLink control unit Service and Repair.�

NO -

Go to step 7.

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

8. Check the No. 15 (20 A) fuse in the passenger's under-dash fuse/relay box, No. 15 (10 A) fuse in the under-food fuse/relay box, and the No. 18 (7.5 A) fuse in the driver's under-dash fuse/relay box.

Are the fuses OK?

YES -

Go to step 9.

NO -

Replace the fuse(s), and recheck.�

9. Measure the voltage between stereo amplifier connector A (18P) terminal No. 18 and body ground.





Is there battery voltage?

YES -

Go to step 10.

NO -

Repair an open in the wire between the No. 15 (20 A) fuse in the passenger's under-dash fuse/relay box and stereo amplifier connector A (18P) terminal No. 18.�

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

11. Measure the voltage between stereo amplifier connector B (28P) terminal No. 3 and body ground.





Is there battery voltage?

YES -

Go to step 12.

NO -

Repair an open in the wire between stereo amplifier connector B (28P) terminal No. 3 and audio-navigation unit connector A (24P) terminal No. 17. If the wire and the pin fits are OK, substitute a known-good audio-navigation unit (including the HDD) Audio-Navigation Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation.�

12. Measure the voltage between stereo amplifier connector A (18P) terminal No. 9 and body ground.





Is there less than 0.2 V?

YES -

Go to step 13.

NO -

Repair an open or high resistance in the wire between the stereo amplifier connector A (18P) terminal No. 9 and body ground (G501) Harness Locations.�

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

14. Check the faulty speaker(s) for damage.

Is there any damage?

YES -

Replace the speaker, and recheck.�

NO -

Go to step 15.

15. Remove the speaker(s) with no sound Speaker Test/Replacement, and disconnect its connector.

16. Check the speaker connectors for a loose or poor connection.

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

YES -

Go to step 17.

NO -

Intermittent failure. Operation is normal.�

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

Is the speaker(s) OK?

YES -

Go to step 18.

NO -

Replace the speaker(s) Speaker Test/Replacement.�

18. Reconnect the speaker connector(s).

19. Disconnect stereo amplifier connector A (18P).

20. Check for continuity between body ground and stereo amplifier connector A (18P) terminals according to the table.









Is there continuity?

YES -

Repair a short to body ground in the wire(s) between the stereo amplifier and the speaker(s).�

NO -

Go to step 21.

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

22. Measure the resistance between each pair of speaker terminals at stereo amplifier connector A (18P) according to the table.









Is the resistance OK?

YES -

Go to step 23.

NO -

Repair an open or a short in the wire between the stereo amplifier and the speaker.�

23. Disconnect these items:

- Driver's door speaker 2P connector
- Front passenger's door speaker 2P connector
- Subwoofer 8P connector

24. Connect stereo amplifier connector A (18P) terminals with jumper wires as shown.










25. Check for continuity between the speaker connector according to the table.













Is there continuity?

YES -

Go to step 26.

NO -

Repair an open in the wire between the stereo amplifier and the speaker(s).�

26. Disconnect the jumper wires.

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

28. Disconnect audio-navigation unit connector D (20P).

29. Check for continuity between body ground and audio-navigation unit connector D (20P) terminals No. 1 and No. 2 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 30.

30. Check for continuity between audio-navigation unit connector D (20P) terminals 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 31.

31. Check for continuity between audio-navigation unit connector D (20P) terminals and stereo amplifier connector B (28P) terminals according to the table.













Is there continuity?

YES -

Go to step 32.

NO -

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

32. Disconnect audio-navigation unit connector A (24P) and connector B (24P).

NOTE: Eject all the CD/DVDs before disconnecting the audio-navigation unit to prevent damaging the CD/DVD player's load mechanism.

33. Check for continuity between audio-navigation unit connector A (24P), connector B (24P), and stereo amplifier connector B (28P) terminals according to the table.

















Is there continuity?

YES -

Go to step 34.

NO -

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

34. Check for continuity between body ground and audio-navigation unit connector A (24P) and connector B (24P) terminals according to the table.













Is there continuity?

YES -

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

NO -

Substitute a known-good audio-navigation unit (including the HDD) Audio-Navigation Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation.If the symptom is still present, replace the stereo amplifier Service and Repair.�