No Sound Is Heard From The Speaker(s) (Display Is Normal) (With Navigation and Premium Audio)

Audio System Symptom Troubleshooting - No sound is heard from the speaker(s) (display is normal)

No sound is heard from the speaker(s) (display is normal)

NOTE:
* Check the vehicle battery condition first Battery Test.
* Set the fader and the balance positions to the center.
* Before doing this troubleshooting, go to Audio-navigation unit power switch will not turn on (No audio information display and no sound) troubleshooting Audio-Navigation Unit Power Switch Will Not Turn On (No Audio Information Display And No Sound).
* Check the connectors for poor connections or loose terminals.

1. Problem verification:

Problem verification
-1. Turn the ignition switch to ON (II).

-2. Turn on the audio system, and check for sound in each mode (AM/FM, USB, XM, and CD).

Is the sound OK in each mode?
-YES- Intermittent failure, the system is OK at this time. Check for loose connections at the audio-navigation unit and speaker(s).
-NO- The failure is duplicated in all modes, go to step 2.
-NO- Go to Poor AM or FM radio reception interference troubleshooting Poor AM or FM Radio Reception Or Interference (With Navigation).
-NO- Go to USB input sound is low or cannot be heard troubleshooting USB Input Sound Is Low Or Can Not Be Heard (With Navigation).
-NO- Go to Poor or no sound with XM radio (Audio-navigation unit does display XM channels) troubleshooting Poor or No Sound With XM Radio (Audio-Navigation Unit Does Display XM Channels).
-NO- Go to Audio disc does not play troubleshooting Audio Disc Does Not Play.

2. Determine possible failure area (volume level, others):

Determine possible failure area (volume level, others)
-1. Check that the volume knob 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. Fuse check:

Fuse check
-1. Turn the ignition switch to LOCK (0).

-2. Check the following fuse.





Is the fuse OK?
-YES- Go to step 4.
-NO- Replace the fuse, and recheck. If the fuse blows again, check for a short in the No. A19 (20 A) fuse circuit.

4. Open wire check (+B_PREMIUM_AMP line):

Open wire check (+B_PREMIUM_AMP line)
-1. Measure the voltage between test points 1 and 2.









Is there battery voltage?
-YES- Go to step 5.
-NO- Repair an open in the wire(s) between the No. A19 (20 A) fuse in the under-hood fuse/relay box and the stereo amplifier.

5. Determine possible failure area (SWD +B line, others):

Determine possible failure area (SWD +B line, others)
-1. Turn the ignition switch to ON (II).

-2. Measure the voltage between test points 1 and 2.









Is there battery voltage?
-YES- Go to step 7.
-NO- Go to step 6.

6. Open wire check (SWD +B line):

Open wire check (SWD +B line)
-1. Measure the voltage between test points 1 and 2.









Is there battery voltage?
-YES- Repair an open in the wire(s) between the stereo amplifier and the audio-navigation unit.
-NO- Replace the audio-navigation unit Audio-Navigation Unit Removal and Installation.

7. Open wire check (GND line):

Open wire check (GND line)
-1. Measure the voltage between test points 1 and 2.









Is there less than 0.2 V?
-YES- Go to step 8.
-NO- Repair an open or high resistance in the wire between the stereo amplifier and body ground (G505).

8. Shorted wire check (SPKR lines, TWEETER lines, SUB_WOOFER lines):

Shorted wire check (SPKR lines, TWEETER lines, SUB_WOOFER lines)
-1. Turn the ignition switch to LOCK (0).

-2. Disconnect the following connector.





-3. Check for continuity between these test points and body ground individually.














Is there continuity?
-YES- Repair a short to body ground in the wire(s) between the audio-navigation unit and the speaker(s).
-NO- Go to step 9.

9. Determine possible failure area (speaker, others) 1:

Determine possible failure area (speaker, others) 1
-1. Check the speaker(s) with no sound for any damage.

Is there any damage?
-YES- Replace the faulty front door speaker(s) Front Door Speaker Removal, Installation, and Test (4-door).
-YES- Replace the faulty rear speaker(s) Rear Speaker Removal, Installation, and Test (4-door).
-YES- Replace the faulty tweeter(s) Tweeter Removal and Installation.
-YES- Replace the faulty subwoofer Subwoofer Removal, Installation, and Test (4-door).
-NO- Go to step 10.

10. Determine possible failure area (speaker, others) 2:

Determine possible failure area (speaker, others) 2
-1. Disconnect the following connector(s).





-2. Test the speaker(s):
* Front door speaker Front Door Speaker Removal, Installation, and Test (4-door)
* Rear speaker Rear Speaker Removal, Installation, and Test (4-door)
* Tweeter Tweeter Test
* Subwoofer Subwoofer Removal, Installation, and Test (4-door)

Is the speaker(s) OK?
-YES- Go to step 11.
-NO- Replace the faulty front door speaker(s) Front Door Speaker Removal, Installation, and Test (4-door).
-NO- Replace the faulty rear speaker(s) Rear Speaker Removal, Installation, and Test (4-door).
-NO- Replace the faulty tweeter(s) Tweeter Removal and Installation.
-NO- Replace the faulty subwoofer Subwoofer Removal, Installation, and Test (4-door).

11. Open wire check (SPKR lines, TWEETER lines, SUB_WOOFER lines):

Open wire check (SPKR lines, TWEETER lines, SUB_WOOFER lines)
-1. Reconnect speaker connector(s).

-2. Measure the resistance between test points 1 and 2.














Is the resistance OK?
-YES- Go to step 12.
-NO- Repair an open in the wire between the audio-navigation unit and the speaker(s).

12. Open wire check (PRE lines):

Open wire check (PRE lines)
-1. Disconnect the following connectors.
NOTE: Eject all the discs before disconnecting the audio-navigation unit to prevent damaging the CD player's load mechanism.





-2. Check for continuity between test points 1 and 2.


























Is there continuity
-YES- Go to step 13.
-NO- There is an open in the wire(s) between the audio-navigation unit and the stereo amplifier. Replace the affected shielded harness.

13. Shorted wire check (PRE lines):

Shorted wire check (PRE lines)
-1. Check for continuity between these test points and body ground individually.














Is there continuity?
-YES- There is a short to body ground in the wire(s) between the stereo amplifier and the audio-navigation unit. Replace the affected shielded harness.
-NO- Go to step 14.

14. Shorted wire check (SH_PRE line to another lines)

Shorted wire check (SH_PRE line to another lines)
-1. Check for continuity between test points 1 and 2.














Is there continuity between any of the terminals?
-YES- There is a short in the wires between the stereo amplifier and the audio-navigation unit. Replace the affected shielded harness.
-NO- Go to step 15.

15. Audio-navigation unit check:

Audio-navigation unit check
-1. Substitute a known-good stereo amplifier Service and Repair, and recheck.

Does the symptom go away?
-YES- Replace the original stereo amplifier.
-NO- Replace the audio-navigation unit Audio-Navigation Unit Removal and Installation.