No Sound Is Heard From The Speaker(s) (Display Is Normal) (With 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) (with navigation)

NOTE:

- Check the vehicle battery condition first Testing and Inspection.
- Check the connectors for poor connections or loose terminals.
- Set the fader and balance positions to the center.
- Before performing symptom troubleshooting, do the Audio unit power switch will not turn on troubleshooting Audio Unit Power Switch Will Not Turn On (No Information Display And No Sound) (With Navigation).

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

2. Check for sound in each mode (AM/FM and CD).

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 -

- If there is no sound in all modes: Go to step 3.
- If there is no sound in AM/FM mode, do the AM or FM radio reception interference troubleshooting Symptom Troubleshooting.�
- If there is no sound in CD mode, do the Audio disc does not play troubleshooting Audio Disc Does Not Play.�

3. Check that 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 4.

4. On the steering wheel, check the navigation talk command.

Is the navigation talk command function set?

YES -

Cancel the navigation talk command by pressing the navigation BACK button, then recheck the function.�

NO -

Go to step 5.

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

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

Is there any damage?

YES -

Substitute the speaker Speaker Test/Replacement and recheck.�

NO -

- With premium audio: Go to step 18.
- Without premium audio: Go to step 7.

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

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

Reconnect the speaker 2P connector, and recheck the symptom; does it still fail?

YES -

Go to step 9.

NO -

Operation is normal.�

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

Is the speaker(s) OK?

YES -

Go to step 10.

NO -

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

10. Reconnect the speaker connector(s).

11. Remove the audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation). Disconnect audio-navigation unit connector A (24P).

NOTE:

- Eject all the CDs before removing the audio-navigation unit to prevent damaging the CD player's load mechanism.
- Remove the PC card before removing the audio-navigation unit.

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

Is there continuity?

YES -

Repair a short to body ground in the wires between the audio-navigation unit and the speaker(s).�

NO -

Go to step 13.

13. Disconnect the tweeter 2P connectors.

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

Is the resistance OK?

YES -

Go to step 15.

NO -

Repair an open or a short in the wire between the audio-navigation unit and the speaker.�

15. Disconnect the driver's door speaker 2P connector and the front passenger's door speaker 2P connector.

16. Connect audio-navigation unit connector A (24P) terminals with jumper wires as shown.

17. Check for continuity between the tweeter 2P connector according to the table.

Is there continuity?

YES -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).�

NO -

Repair an open in the wire(s) between the audio-navigation unit and the tweeter.�

18. Check the No. 17 (15 A) fuse in the under-hood fuse/relay box.

Is the fuse OK?

YES -

Go to step 19.

NO -

Replace the fuse, and recheck.�

19. Measure the voltage between stereo amplifier connector A (20P) terminal No. 10 and body ground.

Is there battery voltage?

YES -

Go to step 20.

NO -

Repair an open in the wire between the No. 17 (15 A) fuse in the under-hood fuse/relay box and stereo amplifier connector A (20P) terminal No. 10.�

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

21. Measure the voltage between stereo amplifier connector A (20P) terminal No. 9 and body ground.

Is there battery voltage?

YES -

Go to step 22.

NO -

Repair an open in the wire between the stereo amplifier connector A (20P) terminal No. 9 and audio-navigation unit connector A (24P) terminal No. 17.�

22. Measure the voltage between stereo amplifier connector B (14P) terminal No. 7 and body ground.

Is there battery voltage?

YES -

Go to step 23.

NO -

Repair an open in the wire between the stereo amplifier connector B (14P) terminal No. 7 and audio-navigation unit connector A (24P) terminal No. 17.�

23. Measure the voltage between stereo amplifier connector A (20P) terminal No. 20 and body ground.

Is there less than 0.2 V?

YES -

Go to step 24.

NO -

Repair an open or high resistance in the wire between stereo amplifier connector A (20P) terminal No. 20 and body ground; 2-door (G505), 4-door (G601).�

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

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

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

Reconnect the speaker 2P connector, and recheck the symptom; does it still fail?

YES -

Go to step 27.

NO -

Operation is normal.�

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

Is the speaker(s) OK?

YES -

Go to step 28.

NO -

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

28. Reconnect the speaker connector(s).

29. Disconnect stereo amplifier connector A (20P).

30. Check for continuity between body ground and the stereo amplifier connector A (20P) 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 31.

31. Measure the resistance between each pair of speaker terminals at stereo amplifier connector A (20P) according to the table.

Is there resistance OK?

YES -

- 2-door: Go to step 32.
- 4-door: Go to step 36.

NO -

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

32. Disconnect stereo amplifier connector B (14P).

33. Disconnect audio-navigation unit connector A (24P).

NOTE:

- Eject all the CDs before removing the audio-navigation unit to prevent damaging the CD player's load mechanism.
- Remove the PC card before removing the audio-navigation unit.

34. Check for continuity between stereo amplifier connector B (14P) and body ground according to the table. Then check for continuity between the same terminals listed in the table and stereo amplifier connector B (14P) terminal No. 2 (the harness shield).

Is there continuity?

YES -

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

NO -

Go to step 35.

35. Check for continuity between audio-navigation unit connector A (24P) and stereo amplifier connector B (14P) according to the table.

Is there continuity?

YES -

Substitute a known-good stereo amplifier Service and Repair, 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 (With Navigation).�

NO -

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

36. Disconnect stereo amplifier connector B (14P).

37. Disconnect audio-navigation unit connector A (24P).

NOTE:

- Eject all the CDs before removing the audio-navigation unit to prevent damaging the CD player's load mechanism.
- Remove the PC card before removing the audio-navigation unit.

38. Check for continuity between stereo amplifier connector B (14P) and body ground according to the table.

Is there continuity?

YES -

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

NO -

Go to step 39.

39. Check for continuity between audio-navigation unit connector A (24P) and stereo amplifier connector B (14P) according to the table.

Is there continuity?

YES -

Go to step 40.

NO -

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

40. Check for continuity between stereo amplifier connector B (14P) and body ground according to the table.

Is there continuity?

YES -

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

NO -

Go to step 41.

41. Check for continuity between audio-navigation unit connector A (24P) and stereo amplifier connector B (14P) according to the table.

Is there continuity?

YES -

Go to step 42.

NO -

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

42. Check for continuity between stereo amplifier connector B (14P) and body ground according to the table.

Is there continuity?

YES -

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

NO -

Go to step 43.

43. Check for continuity between audio-navigation unit connector A (24P) and stereo amplifier connector B (14P) according to the table.

Is there continuity?

YES -

Go to step 44.

NO -

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

44. Check for continuity between stereo amplifier connector B (14P) and body ground according to the table.

Is there continuity?

YES -

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

NO -

Go to step 45.

45. Check for continuity between audio-navigation unit connector A (24P) and stereo amplifier connector B (14P) according to the table.