No Sound Is Heard From The Speaker(s) (Display Is Normal) (Without Navigation, With Audio)
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, With Audio)
1. Turn the ignition switch to ON (II).
2. Check that the volume button is not set to min level.
Is it at MIN level?
YES - Raise the volume level, and recheck the function.
NO - Go to step 3.
3. Do the speaker check mode in the Self-diagnostic Function. How To Troubleshoot The Audio System (Without Navigation)
Do any or all of the speakers fail to sound?
YES - Go to step 4.
NO - Speakers all work, but sound quality is poor:
- If the sound is poor only with AM or FM, go to Poor AM or FM radio reception or interference. Poor AM Or FM Radio Reception Or Interference (Without Navigation, With Audio)
- If the sound is poor only with disc.
- Try several known-good discs in the audio unit.
- If the sound quality is normal, the original disc is faulty.
- If the sound quality is still poor, replace the audio unit. Audio Unit Removal/Installation (Without Navigation, With Audio)
- If the sound is poor in all modes, go to Sound Quality Diagnosis. Sound Quality Diagnosis - Left/Right Channel ID
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 Speaker Test/Replacement and recheck.
NO - Go to step 6.
6. Remove the speaker(s) with no sound, Speaker Test/Replacement and disconnect its connector.
7. 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 8.
NO - Operation is normal.
8. Test the speaker(s). Speaker Test/Replacement
Is the speaker(s) OK?
YES -
- With premium audio system: Go to step 17.
- Without premium audio system: Go to step 9.
NO - Replace the speaker(s). Speaker Test/Replacement
9. Reconnect the speaker connector(s).
10. Remove the audio unit. Audio Unit Removal/Installation (Without Navigation, With Audio) Disconnect audio unit connector A (17P).
NOTE: Eject all the discs before removing the audio unit to prevent damaging the CD player's load mechanism.
11. Check for continuity between body ground and audio unit connector A (17P) 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.
NO - Go to step 12.
12. Disconnect tweeter 2P connectors.
13. Measure the resistance between each pair of speaker terminals at audio unit connector A (17P) according to the table.
Is the resistance OK?
YES - Go to step 14.
NO - Repair an open or a short in the wires between the audio unit and the speaker.
14. Disconnect the driver's door speaker 2P connector and the front passenger's door speaker 2P connector.
15. Connect audio unit connector A (17P) terminals with jumper wires as shown.
16. Check for continuity between the tweeter 2P connector according to the table.
Is there continuity?
YES - Replace the audio unit. Audio Unit Removal/Installation (Without Navigation, With Audio)
NO - Repair an open in the wire(s) between the audio unit and the tweeter.
17. Reconnect the speaker connector(s).
18. Disconnect stereo amplifier connector A (20P).
19. Check for continuity between body ground and 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 20.
20. Measure the resistance between each pair of speaker terminals at stereo amplifier connector A (20P) according to the table.
Is the resistance OK?
YES -
- 2-door: Go to step 21.
- 4-door: Go to step 25.
NO - Repair an open or a short in the wire between the stereo amplifier and the speaker.
21. Disconnect stereo amplifier connector B (14P).
22. Disconnect audio unit connector A (17P).
23. 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 unit. Replace the affected shielded harness.
NO - Go to step 24.
24. Check for continuity between audio unit connector A (17P) and stereo amplifier connector B (14P) according to the table.
Is there continuity?
YES - Go to step 34.
NO - There is an open in the wire between the audio unit and the stereo amplifier. Replace the affected shielded harness.
25. Disconnect audio unit connector A (17P).
26. 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 unit. Replace the affected shielded harness.
NO - Go to step 27.
27. Check for continuity between audio unit connector A (17P) and stereo amplifier connector B (14P) according to the table.
Is there continuity?
YES - Go to step 28.
NO - There is an open in the wire between the audio unit and the stereo amplifier. Replace the affected shielded harness.
28. 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 unit. Replace the affected shielded harness.
NO - Go to step 29.
29. Check for continuity between audio unit connector A (17P) and stereo amplifier connector B (14P) according to the table.
Is there continuity?
YES - Go to step 30.
NO - There is an open in the wire between the audio unit and the stereo amplifier. Replace the affected shielded harness.
30. 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 unit. Replace the affected shielded harness.
NO - Go to step 31.
31. Check for continuity between audio unit connector A (17P) and stereo amplifier connector B (14P) according to the table.
Is there continuity?
YES - Go to step 32.
NO - There is an open in the wire between the audio unit and the stereo amplifier. Replace the affected shielded harness.
32. 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 unit. Replace the affected shielded harness.
NO - Go to step 33.
33. Check for continuity between audio unit connector A (17P) and stereo amplifier connector B (14P) according to the table.
Is there continuity?
YES - Go to step 34.
NO - There is an open in the wire between the audio unit and the stereo amplifier. Replace the affected shielded harness.
34. Reconnect stereo amplifier connectors A (20P) and B (14P).
35. Measure the voltage between stereo amplifier connector A (20P) terminal No. 10 and body ground.
Is there battery voltage?
YES - Go to step 36.
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.
36. Turn the ignition switch to ON (II).
37. Measure the voltage between stereo amplifier connector A (20P) terminal No. 9 and body ground.
Is there battery voltage?
YES - Go to step 38.
NO - Repair an open in the wire between the No. 35 (7.5 A) fuse in the under-dash fuse/relay box and stereo amplifier connector A (20P) terminal No. 9.
38. Measure the voltage between stereo amplifier connector B (14P) terminal No. 7 and body ground.
Is there battery voltage?
YES - Go to step 39.
NO - Repair an open in the wire between the stereo amplifier connector B (14P) terminal No. 7 and audio unit connector B (20P) terminal No. 16.
39. Measure the voltage between stereo amplifier connector A (20P) terminal No. 20 and body ground.
Is there less than 0.2 V?
YES - Substitute a known-good audio unit, Audio Unit Removal/Installation (Without Navigation, With Audio) and recheck. If the symptom/indication goes away, replace the original audio unit. If symptom is still present,substitute a know-good stereo amplifier, Service and Repair and recheck. If the symptom/indication goes away, replace the original stereo amplifier.
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).
