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 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) (Without Navigation).

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

2. Check for sound in each mode (AM/FM, XM, 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 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, go to AM or FM radio reception interference troubleshooting Poor AM Or FM Radio Reception Or Interference (Without Navigation With XM Radio).�
- If there is no sound in CD mode, go to Audio disc does not play troubleshooting Audio Disc Does Not Play.�
- If there is no sound in the XM radio, go to Poor or no sound with XM radio troubleshooting Poor Or No Sound With XM Radio (Audio Unit Does Display XM Channels) (Without Navigation With XM Radio).�

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. Turn the ignition switch to LOCK (0).

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

Is there any damage?

YES -

Substitute the speaker(s) Service and Repair, and recheck.�

NO -

- EX and SC: Go to step 15.
- LX: Go to step 6.

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

7. Check the speaker 2P connector and the subwoofer 4P connector for a loose or poor connection.

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

YES -

Go to step 8.

NO -

Operation is normal.�

8. Make sure the ignition switch is in LOCK (0).

9. Remove the audio unit Audio Unit Removal/Installation (Without Navigation), and disconnect audio unit connector A (20P).

NOTE: Eject all the CDs before removing the audio unit to prevent damaging the CD player's load mechanism.

10. Check for continuity between audio unit connector A (20P) and body ground according to the table.









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 11.

11. Disconnect the door speaker 2P connectors.

12. Measure the resistance between door speaker 2P connector terminals No. 1 and No. 2.





Is there about 4 Ohms?

YES -

Go to step 13.

NO -

Replace the speaker(s) Service and Repair.�

13. Reconnect the door speaker connectors.

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









Is the resistance OK?

YES -

Substitute a known-good audio unit Audio Unit Removal/Installation (Without Navigation), and recheck. If the symptom/indication goes away, replace the original audio unit Audio Unit Removal/Installation (Without Navigation).�

NO -

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

15. Check the No. 7 (20 A) fuse in the under-dash fuse/relay box.

Is the fuse OK?

YES -

Go to step 16.

NO -

Replace the fuse, and recheck.�

16. Measure the voltage between stereo amplifier connector A (14P) No. 11 terminal and body ground.





Is there battery voltage?

YES -

Go to step 17.

NO -

Repair an open in the wire between No. 7 (20 A) fuse in the under-dash fuse box and stereo amplifier connector A (14P) terminal No. 11.�

17. Turn the ignition switch to ON (II), and push the audio unit PWR button.

18. Measure the voltage between stereo amplifier connector B (16P) terminal No. 1 and body ground.





Is there battery voltage?

YES -

Go to step 19.

NO -

Repair an open in the wire between audio unit connector A (20P) terminal No. 1 and stereo amplifier connector B (16P) terminal No. 1.�

19. Measure the voltage between stereo amplifier connector A (14P) terminal No. 10 and body ground.





Is there less than 0.2 V?

YES -

Go to step 20.

NO -

Repair an open or high resistance in the wire between stereo amplifier connector B (16P) terminal No. 10 and body ground (G503); '07-08 models, '09-11 models.�

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

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

22. Check the speaker 2P connector and the subwoofer 4P connector for a loose or poor connection.

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

YES -

Go to step 23.

NO -

Operation is normal.�

23. Make sure the ignition switch is in LOCK (0).

24. Disconnect stereo amplifier connector A (14P).

25. Check for continuity between stereo amplifier connector A (14P) and body ground 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 26.

26. Disconnect the door speaker 2P connectors.

27. Measure the resistance between door speaker 2P connector terminals No. 1 and No. 2.





Is there about 4 Ohms?

YES -

Go to step 28.

NO -

Replace the speaker(s) Service and Repair.�

28. Reconnect the door speaker connectors.

29. Disconnect the tweeter 2P connectors.

30. Measure the resistance between each pair of speaker terminals at stereo amplifier connector A (14P) according to the table.









Is the resistance OK?

YES -

Go to step 31.

NO -

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

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

32. Connect stereo amplifier connector A (14P) terminals with jumper wires as shown.






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









Is there continuity?

YES -

Go to step 34.

NO -

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

34. Disconnect the jumper wires.

35. Disconnect the subwoofer 4P connector.

36. Connect stereo amplifier connector A (14P) terminals with jumper wires as shown.






37. Check for continuity between the subwoofer 4P connector according to the table.









Is there continuity?

YES -

Go to step 38.

NO -

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

38. Disconnect the jumper wires.

39. Substitute a known-good tweeter or subwoofer, and recheck.

Does the symptom goes away?

YES -

Replace the original tweeter or subwoofer.�

NO -

Go to step 40.

40. Disconnect stereo amplifier connector B (16P).

41. Disconnect audio unit connector A (20P).

NOTE: Eject all the CDs before removing the audio unit to prevent damaging the CD player's load mechanism.

42. Check for continuity between audio unit connector A (20P) and body ground 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 unit. Replace the affected shielded harness.�

NO -

Go to step 43.

43. Check for continuity between the terminals of audio unit connector A (20P) according to the table.









Is there continuity between any of the terminals?

YES -

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

NO -

Go to step 44.

44. Check for continuity between audio unit connector A (20P) and stereo amplifier connector B (16P) according to the table.













Is there continuity?

YES -

Go to step 45.

NO -

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

45. Disconnect audio unit connector B (8P).

46. Check for continuity between audio unit connector B (8P) and body ground 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 unit. Replace the affected shielded harness.�

NO -

Go to step 47.

47. Check for continuity between the terminals of audio unit connector B (8P) and body ground according to the table.









Is there continuity between any of the terminals?

YES -

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

NO -

Go to step 48.

48. Check for continuity between audio unit connector B (8P) and stereo amplifier connector B (16P) 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 symptom/indication is still present, substitute a known-good audio unit Audio Unit Removal/Installation (Without Navigation), and recheck. If the symptom/indication goes away, replace the original audio unit Audio Unit Removal/Installation (Without Navigation).�

NO -

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