No Sound Is Heard From the Speaker(s) (Display Is Normal) (Without 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) (without navigation)

NOTE:

- Set the fader and balance positions to the center.

- Check the connectors for poor connections or loose terminals.

- Check the vehicle battery condition first.

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

Did all speakers produce a tone?
YES - Go to step 9.

NO - Go to step 4.


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

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

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

NO - Go to step 6.


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

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

Reconnect the speaker 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 - Go to step 9.

NO - Replace the speaker(s).


9. 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 10.

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


10. Disconnect stereo amplifier connector B (18P).
NOTE: Eject all the CDs before disconnecting the audio unit and CD changer to prevent damaging the CD player's load mechanism.

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

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

Is there battery voltage?
YES - Go to step 13.

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.






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

14. Measure the voltage between stereo amplifier connector A (20P) terminal No. 1 and body ground.

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

NO - Repair open in the wire between stereo amplifier connector A (20P) terminal No. 1 and audio unit connector B (32P) terminal No. 23.






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

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

Is there less than 0.1 V?
YES - Go to step 17.

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






17. Check for continuity between audio unit connector B (32P) and stereo amplifier connector A (20P) according to the table.





Is there continuity?
YES - Go to step 18.

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






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

19. 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 20.






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









Is the resistance the same as indicated?
YES - Go to step 21.

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






21. Check for continuity between stereo amplifier connector A (20P) 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 22.






22. Check for continuity between the terminals of stereo amplifier connector A (20P) 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