No Sound Is Heard From Speaker(s) (Display Is Normal) (Without Navigation)
No sound is heard from speaker(s) (display is normal) (without navigation)NOTE:
- Check the vehicle battery condition first.
- Check the connectors for poor connections or loose terminals.
- Set the fader and balance positions to the center.
- Before performing symptom troubleshooting, do the power switch will not turn ON troubleshooting.
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.
Do any or all of the speakers fail to sound?
YES - Speaker(s) failed the test:
- If at least one speaker is OK, go to step 4.
- If all speakers fail to sound;
- With premium sound system: Go to step 12.
- Without premium sound system: Go to step 7.
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.
- If the sound is poor only with disc.
- Try several known-good disc 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.
- If the sound is poor in all modes, go to sound quality diagnosis. Sound Quality Diagnosis
4. Turn the ignition switch to LOCK (0).
5. Remove the speaker(s) with no sound, and disconnect its connector.
6. 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 7.
NO - Operation is normal.
7. Make sure turn the ignition switch is in LOCK (0).
8. Measure the resistance between the (+) and (-) terminal of the speaker connector.
Is there about 4 ohms?
YES -
- With premium sound system: Go to step 18.
- Without premium sound system: Go to step 9.
NO - Faulty speaker(s).
9. Remove the audio unit. 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.
10. Measure the resistance between the following terminals of audio unit connector A (17P).
Is there about 4 ohms?
YES - Go to step 11.
NO - Repair open or short in the wires between audio unit and speaker(s).
11. Check for continuity between body ground and following terminals of audio unit connector A (17P).
Is there continuity?
YES - Repair short to body ground in the wire(s) between the audio unit and speaker(s).
NO - Substitute a known-good audio unit and recheck. If the symptom/indication goes away, replace the original audio unit.
12. Measure the voltage between stereo amplifier connector A (20P) No. 10 terminal and body ground.
Is there battery voltage?
YES - Go to step 13.
NO -
- '06 model: Repair open in the wire between No. 5 (15 A) fuse in the under-dash fuse/relay box and stereo amplifier connector A (20P) No. 10 terminal.
- '07-08 models: Repair open in the wire between No. 17 (15 A) fuse in the under-hood fuse/relay box and stereo amplifier connector A (20P) No. 10 terminal.
13. Turn the ignition switch to ON (II).
14. Measure the voltage between stereo amplifier connector A (20P) No. 9 terminal and body ground.
Is there battery voltage?
YES - Go to step 15.
NO - Repair open in the wire between No. 35 (7.5 A) fuse in the under-dash fuse/relay box and stereo amplifier connector A (20P) No. 9 terminal.
15. Measure the voltage between stereo amplifier connector B (14P) No. 7 terminal and body ground.
16. Measure the voltage between stereo amplifier connector A (20P) No. 20 terminal and body ground, and between stereo amplifier connector B (14P) No. 14 terminal and body ground.
Is there less than 0.1 V on both terminals?
YES - Go to step 17.
NO - Repair open in the wire between stereo amplifier connector A (20P) No. 20 terminal or connector B (14P) No. 14 terminal and body ground, 2-door model (G505), 4-door model (G60D).
17. Turn the ignition switch to LOCK (0).
18. Disconnect stereo amplifier connector A (20P).
19. Measure the resistance between the following terminals of stereo amplifier connector A (20P) according to the table.
Is there about 4 ohms?
YES - Go to step 20.
NO - Repair open or short in the wires between stereo amplifier and speaker(s).
20. Check for continuity between body ground and the following terminals of stereo amplifier connector A (20P).
Is there continuity?
YES - Repair short to body ground in the wire(s) between stereo amplifier and speaker(s).
NO -
- 2-door: Go to step 21.
- '08 4-door: Go to step 25.
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) No. 2 terminal (the harness shield).
Is there continuity?
YES - Repair short in the wire between the stereo amplifier and the audio unit. Replace the appropriate shielded harness.
NO - Go to step 24.
24. Check for continuity between audio unit connector A and stereo amplifier connector B according to the table.
Is there continuity?
YES - Substitute a known-good audio unit and recheck. If the symptom/indication goes away, replace the original audio unit. If symptom is still present, substitute a known-good stereo amplifier and recheck. If the symptom/indication goes away, replace the original stereo amplifier.
NO - Repair open in the wire between the audio unit and stereo amplifier.
25. Disconnect audio unit connector A (17P).
26. 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) No. 2 terminal (the harness shield).
Is there continuity?
YES - Repair short in the wire between the stereo amplifier and the audio unit. Replace the appropriate shielded harness.
NO - Go to step 27.
27. Check for continuity between audio unit connector A and stereo amplifier connector B according to the table.
Is there continuity?
YES - Go to step 28.
NO - Repair open in the wire between the audio unit and stereo amplifier.
28. 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) No. 5 terminal (the harness shield).
Is there continuity?
YES - Repair short in the wire between the stereo amplifier and the audio unit. Replace the appropriate shielded harness.
NO - Go to step 29.
29. Check for continuity between audio unit connector A and stereo amplifier connector B according to the table.
Is there continuity?
YES - Go to step 30.
NO - Repair open in the wire between the audio unit and stereo amplifier.
30. Check for continuity between stereo amplifier connector 6 (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) No. 9 terminal (the harness shield).
Is there continuity?
YES - Repair short in the wire between the stereo amplifier and the audio unit. Replace the appropriate shielded harness.
NO - Go to step 31.
31. Check for continuity between audio unit connector A and stereo amplifier connector B according to the table.
Is there continuity?
YES - Go to step 32.
NO - Repair open in the wire between the audio unit and stereo amplifier.
32 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) No. 12 terminal (the harness shield).
Is there continuity?
YES - Repair short in the wire between the stereo amplifier and the audio unit. Replace the appropriate shielded harness.
NO - Go to step 33.
33. Check for continuity between audio unit connector A and stereo amplifier connector B according to the table.
Is there continuity?
YES - Substitute a known-good audio unit and recheck. If the symptom/indication goes away, replace the original audio unit. If symptom is still present, substitute a known-good stereo amplifier and recheck. If the symptom/indication goes away, replace the original stereo amplifier.
NO - Repair open in the wire between the audio unit and stereo amplifier.