No Sound Is Heard From The Speaker(s) (Display Is Normal) (With Premium Audio Without Navigation)

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 unit power switch will not turn on (No information display and no sound) troubleshooting Audio Unit Power Switch Will Not Turn On (No 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, 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 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 (Without Navigation).
-NO- Go to USB input sound is low or cannot be heard troubleshooting USB Input Sound Is Low Or Can Not Be Heard (Without Navigation).
-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. Determine possible failure area (audio unit, others):

Determine possible failure area (audio unit, others)
-1. Do the Self-Diagnostic Function, and use the Speaker Check Mode Audio System Self-Diagnostic Function.

Did all speakers produce a tone?
-YES- Replace the audio unit Audio Unit Removal and Installation.
-NO- Go to step 4.

4. 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 5.
-NO- Replace the fuse, and recheck. If the fuse blows again, check for a short in the No. A19 (20 A) fuse circuit.

5. 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 6.
-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.

6. 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 8.
-NO- Go to step 7.

7. 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 unit.
-NO- Replace the audio unit Audio Unit Removal and Installation.

8. 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 9.
-NO- Repair an open or high resistance in the wire between the stereo amplifier and body ground (G505).

9. 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 unit and the speaker(s).
-NO- Go to step 10.

10. 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 11.

11. 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 12.
-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).

12. 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 13.
-NO- Repair an open in the wire between the audio unit and the speaker(s).

13. Open wire check (PRE lines):

Open wire check (PRE lines)
-1. Disconnect the following connectors.
NOTE: Eject all the discs before disconnecting the audio 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 14.
-NO- There is an open in the wire(s) between the audio unit and the stereo amplifier. Replace the affected shielded harness.

14. 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 unit. Replace the affected shielded harness.
-NO- Go to step 15.

15. 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 unit. Replace the affected shielded harness.
-NO- Go to step 16.

16. Audio unit check:

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

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