No Sound Is Heard From the Speaker(s) (Display Is Normal) (With Navigation)

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:

- Set the fader and balance positions to the center.

- On vehicles equipped with navigation and HandsFreeLink verify the voice systems are not activated, Press each system's back button to return the audio unit to the normal operating mode.

- Check the vehicle battery condition first.

- Check the connectors for poor connections or loose terminals.

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

2. Turn on the audio 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. On the steering wheel, check the navigation talk command, and/or the HandsFreeLink talk command functions.

Are the navigation talk command and/or the HFL talk command functions set?
YES - Cancel the navigation talk command by pressing the navigation BACK button, and for the HFL talk command, press the HFL BACK button, then recheck the function.

NO - Go to step 4.


4. Do the speaker(s) check mode with the self-diagnostic function. How to Troubleshoot the Audio System

Did all speakers produce a tone?
YES - Go to step 11.

NO - Go to step 5.


5. Check the subwoofer for tone.

Did the subwoofer make a tone?
YES - Go to step 6.

NO - Go to step 29.


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

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

Is there any damage?
YES - Replace the speaker and recheck.

NO - Go to step 8.


8. Remove the faulty speaker(s) that has no sound, Speaker Test/Replacement and disconnect its connector.

9. Check the speaker(s) connector for a loose or poor connection.

Reconnect the speaker connector, and recheck the symptom; is the condition still present?
YES - Go to step 10.

NO - Intermittent failure. Operation is normal.


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

Is the speaker OK?
YES - Go to step 11.

NO - Replace the speaker(s).


11. Do the audio unit self-diagnostic function DSP unit communication check. How to Troubleshoot the Audio System

Is the DSP communication OK?
YES - Go to step 12.

NO - Audio unit is faulty, replace the audio unit. Audio Unit Removal/Installation


12. Disconnect stereo amplifier connector B (18P).

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

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

Is there battery voltage?
YES - Go to step 15.

NO - Repair open in the wire between the No. 8 (30 A) fuse in the under-dash fuse/relay box and stereo amplifier connector B (18P) terminal No. 18.






15. Disconnect stereo amplifier connector A (28P).

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

Is there battery voltage?
YES - Go to step 17.

NO - Repair open in the wire between the stereo amplifier connector A (28P) terminal No. 3 and audio unit connector B (32P) terminal No. 23.






17. Reconnect the stereo amplifier connector B (18P).

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

Less than 0.1 V?
YES - Go to step 19.

NO - Repair open to the body ground in the wire between the stereo amplifier connector B (18P) terminal No 9 and body ground (G504).






19. Disconnect stereo amplifier connector B (18P) and the relevant speaker connector(s).

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





Is there continuity?
YES - Repair short in the wire(s) between the stereo amplifier and the speaker(s).

NO - Go to step 21.






21. Measure the resistance between stereo amplifier connector B (18P) according to the table.









Is the resistance the same as indicated?
YES - Go to step 22.

NO - Repair open in the wire between the stereo amplifier and the speaker(s).






22. Disconnect audio unit connector B (32P).

23. Check for continuity between the following terminals of the stereo amplifier connector A (28P) and audio unit connector B (32P).





Is there continuity?
YES - Go to step 24.

NO - Repair open in the wire between the stereo amplifier and audio unit.






24. Check for continuity between the terminals of stereo amplifier connector A (28P) according to the table.





Is there continuity between any of the terminals?
YES - Repair short in the wire(s) between audio unit and stereo amplifier (replace appropriate shield harness).

NO - Go to step 25.






25. Check for continuity between body ground and stereo amplifier connector A (28P) terminal No. 1, No. 2, and No. 15 individually.

Is there continuity?
YES - Repair short to body ground in the wire(s) between stereo amplifier and audio unit (replace the appropriate shielded harness).

NO - Go to step 26.






26. Check for continuity between audio unit connector B (32P) and stereo amplifier connector A (28P) according to the table.





Is there continuity?
YES - Go to step 27.

NO - Repair open in the appropriate wire(s) between the audio unit and stereo amplifier.






27. Check for continuity between stereo amplifier connector A (28P) and body ground according to the table.





Is there continuity?
YES - Repair short to body ground in the wire(s) between the audio unit and the stereo amplifier.

NO - Go to step 28.






28. Check for continuity between the terminals of stereo amplifier connector A (28P) according to the table.





Is there continuity between any of the terminals?
YES - Repair short in the wire(s) between audio unit and stereo amplifier (replace appropriate shield harness).

NO - Substitute a known-good audio unit, and recheck. If the symptom/indicated goes away, replace the original audio unit. Audio Unit Removal/Installation If the symptom is still present, substitute a known-good stereo amplifier, and recheck. If the symptom indicated goes away, replace the original stereo amplifier. Service and Repair






29. Disconnect the subwoofer 8P connector.

30. Measure the voltage between subwoofer 8P connector terminal No. 5 and body ground.

Is there battery voltage?
YES - Go to step 31.

NO - Repair open in the between the subwoofer 8P connector terminal No. 5 and No. 12 (10 A) fuse in the under-dash fuse/relay box.






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

32. Measure the voltage between subwoofer 8P connector terminal No. 6 and body ground.

Is there battery voltage?
YES - Go to step 33.

NO - Repair open in the between the stereo amplifier connector A (28P) terminal No. 20 and subwoofer 8P connector terminal No. 6.






33. Check for continuity between body ground and subwoofer 8P connector terminal No. 6.

Is there continuity?
YES - Repair short to body ground in the wire(s) between the stereo amplifier and subwoofer.

NO - Go to step 34.






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

35. Check for continuity between subwoofer 8P connector terminal No. 4 and body ground.

Is there continuity?
YES - Go to step 6.

NO - Repair open to the body ground in the wire between the subwoofer 8P connector terminal No 4 and body ground (G606).