No Sound Is Heard From Speaker(s) (Display Is Normal) (Without Navigation)
No sound is heard from speakers (display is normal) (without navigation)NOTE:
- Set the fader and balance positions to the center.
- Before performing symptom troubleshooting, do the power switch will not turn ON troubleshooting.
- For vehicles with factory installed audio, do the self-diagnostic function, speak check to help isolate the speaker.
1. 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 2.
2. Check to see if there is a specific speaker that has no sound.
Is there a specific one?
YES - Go to step 3.
NO - Go to step 6.
3. Turn the ignition switch OFF.
4. Check the speaker with sound for any damage.
Is there any damage?
YES - Substitute the speaker and recheck.
NO - Go to step 5.
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. Measure the resistance between the No. 1 and No. 2 terminals of the speaker connector.
Is there about 4 Ohms?
YES
- With premium sound system: Go to step 12.
- Without premium sound system: Go to step 8.
NO - Faulty speaker(s).
8. Remove the audio unit. Disconnect audio unit connector A (17P).
9. Check the resistance between the terminals of audio unit connector A (17P) according to the table.
Is there about 4 Ohms?
YES - Go to step 10.
NO - Repair short in the wires between the audio unit and speaker.
10. Disconnect the speaker 2P connector.
11. Check audio unit connector A (17P) terminals No. 2, 3,7,8,11,12,15, and 16 individually for continuity to body ground.
Is there continuity?
YES - Repair short to body ground in the wire between the audio unit and speaker.
NO - Substitute a known-good audio unit and recheck. If the symptom/indication goes away, replace the original audio unit.
12. Disconnect stereo amplifier connector A (20P), and connector B (14P).
13. Check the voltage between stereo amplifier connector A (20P) No. 10 terminal and body ground.
Is there battery voltage?
YES - Go to step 14.
NO - Repair open in the wire between fuse No. 5 (15 A) under-dash fuse box and stereo amplifier connector A (20P) No. 10 terminal.
14. Turn the ignition switch ON (II), and push the PWR button on the audio unit.
15. Check the voltage between stereo amplifier connector A (20P) No, 9 terminal and body ground.
Is there battery voltage?
YES - Go to step 16.
NO - Repair open in the wire between fuse No. 35 (7.5 A) under-dash fuse/relay box and stereo amplifier connector A (20P) No. 9 terminal.
16. Check the voltage between stereo amplifier connector B (14P) No. 7 terminal and body ground.
Is there battery voltage?
YES - Go to step 17.
NO - Repair open in the wire between the stereo amplifier connector B (14P) No. 7 terminal and audio unit connector B (20P) No. 16 terminal.
17. Reconnect stereo amplifier connector A (20P), and connector B (14P).
18. Check for 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 19.
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 (G503), (G504).
19. Disconnect stereo amplifier connector A (20P) and, connector B (14P).
20. Check for resistance between the terminals of stereo amplifier connector A (20P) according to the table.
Is there about 4 Ohms?
YES - Go to step 21.
NO - Repair short in the wires between the stereo amplifier and speaker.
21. Disconnect the 2P connector(s) to the speaker(s).
22. 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 between the audio unit and the speaker.
NO - Go to step 23.
23. Disconnect audio unit connector A (17P).
24. 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 25.
25. 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.