NO.3 NO SOUND FROM ALL SPEAKERS [ENTIRE AUDIO SYSTEM]
id0903e2803200
Without Bose®
|
3 |
No sound from all speakers |
|
|---|---|---|
|
Possible DTC |
Using the M-MDS |
U3000:16, U3000:09 |
|
Without using M-MDS (On-board diagnostic test mode) |
09:Er20, 09:Er21 |
|
|
Possible cause
|
• Poor connection at audio unit connector, terminal damage
• Short circuit in wiring harness between audio unit
• Short circuit inside speaker
• Audio unit malfunction
|
|
Diagnostic procedure
|
STEP |
INSPECTION |
ACTION |
|
|---|---|---|---|
|
1
|
• Play the CD or Radio.
• Adjust the volume between “10” to “15”.
• Is there sound?
|
Yes
|
The system is normal.
|
|
No
|
Go to the next step.
|
||
|
2
|
• Switch the ignition to off.
• Remove the audio unit.
• Disconnect the audio unit connector (24-pin).
• Inspect the continuity between the audio unit wiring harness-side connector terminal and ground:
For front door speaker
― Terminal 1A (LH+)—GND
― Terminal 1C (LH-)—GND
― Terminal 1D (RH+)—GND
― Terminal 1F (RH-)—GND
For rear door speaker
― Terminal 1S (LH+)—GND
― Terminal 1U (LH-)—GND
― Terminal 1V (RH+)—GND
― Terminal 1X (RH-)—GND
• Disconnect the front door speaker connector (4-pin)
• Inspect the continuity between the front door speaker wiring harness-side connector terminal and ground:
For tweeter
― Front door speaker (LH) terminal A (LH+)—GND
― Front door speaker (LH) terminal D (LH-)—GND
― Front door speaker (RH) terminal A (RH+)—GND
― Front door speaker (RH) terminal D (RH-)—GND
• Is there continuity?
|
Yes
|
Repair or replace the suspect wiring harness or speaker unit.
|
|
No
|
Replace the audio unit.
|
||
With Bose®
|
3 |
No sound from all speakers |
|
|---|---|---|
|
Possible DTC |
Using the M-MDS |
U3000:16, U3000:09 |
|
Without using M-MDS (On-board diagnostic test mode) |
09:Er20, 09:Er21 |
|
|
Possible cause
|
• Poor connection of audio unit or audio amplifier connector, terminal damage
• Open or short circuit in wiring harness between audio amplifier and speaker
• Short circuit inside speaker
• Open or short circuit in wiring harness between audio amplifier and audio unit
• Audio amplifier malfunction
|
|
Diagnostic procedure
|
STEP |
INSPECTION |
ACTION |
|
|---|---|---|---|
|
1
|
• Play CD or radio.
• Adjust the volume between “10” and “15”.
• Is there sound?
|
Yes
|
The system is normal.
|
|
No
|
Go to the next step.
|
||
|
2
|
• Measure the voltage at the audio amplifier terminal 3A (8-pin, vehicle harness-side)
• Is the voltage B+?
|
Yes
|
Go to Step 4.
|
|
No
|
Repair or replace wiring harness between the audio amplifier and fuse.
Go to the next step.
|
||
|
3
|
• Is there any sound?
|
Yes
|
The system is normal.
|
|
No
|
Go to the next step.
|
||
|
4
|
• Inspect the connection of audio unit connector (24-pin) and audio amplifier connectors for poor connection (such as damaged/pulled-out pins, corrosion).
• Are all pins normal?
|
Yes
|
Go to the next step.
|
|
No
|
If poor connection of audio unit or audio amplifier connector:
• Securely connect the suspect connector.
If the audio unit or audio amplifier side connector is wrong:
• Replace the audio unit.
• Replace the audio amplifier.
If the wiring harness-side connector is wrong:
• Repair or replace the pins and/or the connector.
|
||
|
5
|
• Switch the ignition to off.
• Disconnect the audio amplifier connector.
• Inspect continuity between the following terminals of the audio amplifier connector and speaker connector.
For front door speaker (LH)
― Terminal 3D—Terminal C
― Terminal 3C—Terminal B
For front door speaker (RH)
― Terminal 3F—Terminal C
― Terminal 3E—Terminal B
For tweeter (LH)
― Front door speaker terminal D—Terminal B
― Front door speaker terminal A—Terminal A
For tweeter (RH)
― Front door speaker terminal D—Terminal B
― Front door speaker terminal A—Terminal A
For rear door speaker (LH)
― Terminal 2D—Terminal C
― Terminal 2B—Terminal B
For rear door speaker (RH)
― Terminal 2M—Terminal C
― Terminal 2O—Terminal B
For front center speaker
― Terminal 2I—Terminal B
― Terminal 2K—Terminal A
For rear center speaker (4SD)/Bass-box (5HB)
― Terminal 3H—Terminal B
― Terminal 3G—Terminal D
For rear speaker
― Terminal 2E—Terminal B
― Terminal 2G—Terminal A
• Is there continuity?
|
Yes
|
Go to the next step.
|
|
No
|
Repair or replace the repair related wiring harnesses.
|
||
|
6
|
• Switch the ignition to off.
• Disconnect the audio amplifier connector.
• Inspect the continuity between the audio amplifier connector and ground:
For front door speaker
― Terminal 3D (LH+)—GND
― Terminal 3C (LH-)—GND
― Terminal 3F (RH+)—GND
― Terminal 3E (RH-)—GND
For tweeter
― Terminal 3D (LH+)—GND
― Terminal 3C (LH-)—GND
― Terminal 3F (RH+)—GND
― Terminal 3E (RH-)—GND
For rear door speaker
― Terminal 2D (LH+)—GND
― Terminal 2B (LH-)—GND
― Terminal 2M (RH+)—GND
― Terminal 2O (RH-)—GND
For front center speaker
― Terminal 2I (+)—GND
― Terminal 2K (-)—GND
For rear center speaker (4SD)/Bass-box (5HB)
― Terminal 3H (+)—GND
― Terminal 3G (-)—GND
For rear speaker
― Terminal 2E—GND
― Terminal 2G—GND
• Is there continuity?
|
Yes
|
Repair or replace the related wiring harness or speaker.
(See TWEETER REMOVAL/INSTALLATION.)
(See REAR CENTER SPEAKER REMOVAL/INSTALLATION.) (4SD)
(See BASS-BOX REMOVAL/INSTALLATION.) (5HB)
|
|
No
|
Go to the next step.
|
||
|
7
|
• Switch the ignition to off.
• Disconnect the audio amplifier connector and audio unit connector (24-pin).
• Inspect the continuity between the audio amplifier terminal 1A (16-pin, vehicle harness-side) and audio unit terminal 1J (24-pin, vehicle harness- side).
• Is there continuity?
|
Yes
|
Replace the audio amplifier.
|
|
No
|
Repair or replace the wiring harness between the audio amplifier and audio unit.
Then go to the next step.
|
||
|
8
|
• Is there any sound?
|
Yes
|
The system is normal.
|
|
No
|
Replace the audio amplifier.
|
||