NO.3 NO SOUND FROM ALL SPEAKERS [ENTIRE AUDIO SYSTEM]
id0903e2803200
Without Bose®
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3 |
No sound from all speakers |
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|---|---|---|---|
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Possible DTC |
Using the M-MDS |
B1188:64, B1D19:96, U3000:09, U3003:16 |
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Without using M-MDS (On-board diagnostic test mode) |
Audio unit (without display) |
03:Er07, 03:Er10, 09:Er21, 09:Er20 |
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Audio unit (with display) |
• Device code 22/error code 07, 10
• Device code 09/error code 21, 20
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Possible cause
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• Audio unit malfunction
• Speaker malfunction
• Poor connection of audio unit connector, terminal damage
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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|---|---|---|---|
|
1
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• Play the CD or Radio.
• Adjust the volume between ”10” to “15”.
• Is there sound?
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Yes
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The system is normal.
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No
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Go to the next step.
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||
|
2
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• Turn the ignition switch to the LOCK position.
• 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
• Is there continuity?
|
Yes
|
Repair or replace the suspect wiring harness or speaker unit.
|
|
No
|
Replace the audio unit.
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With Bose®
|
3 |
No sound from all speakers |
||
|---|---|---|---|
|
Possible DTC |
Using the M-MDS |
B1188:64, B1D19:96, U3000:09, U3003:16 |
|
|
Without using M-MDS (On-board diagnostic test mode) |
Audio unit |
• Device code 22/error code 07, 10
• Device code 09/error code 21, 20
|
|
|
Car-navigation unit |
• Device code 22/error code 07, 10
• Device code 09error code 21, 20
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Possible cause
|
• Speaker malfunction
• Audio amplifier malfunction
• Open or short circuit in wiring harness between audio amplifier and audio unit/car-navigation unit
• Short circuit inside speaker
• Poor connection of audio unit/car-navigation unit or audio amplifier connector, terminal damage
• CAN signal wiring harness malfunction
• Short circuit inside speaker
• Open or short circuit in wiring harness between audio amplifier and speaker
|
||
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 4A (8-pin, vehicle harness-side).
• Is the voltage B+?
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Yes
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Go to Step 4.
|
|
No
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Repair or replace wiring harness between the audio amplifier and fuse.
Go to the next step.
|
||
|
3
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• Is there any sound?
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Yes
|
The system is normal.
|
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No
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Go to the next step.
|
||
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4
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• Inspect the connection of audio unit/car-navigation unit connector (24-pin) and audio amplifier for poor connection (such as damaged/pulled-out pins corrosion).
• Are all the pins normal?
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Yes
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Go to the next step.
|
|
No
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Repair or replace the pins and/or the connector.
|
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5
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• Turn the ignition switch to the LOCK position.
• Disconnect the audio amplifier connector.
• Inspect continuity between the following terminals of the audio amplifier connector and speaker connector.
For front door speaker
― Terminal 3L (LH+)—Terminal B
― Terminal 3N (LH-)—Terminal A
― Terminal 3K (RH+)—Terminal B
― Terminal 3M (RH-)—Terminal A
For front speaker
― Terminal 3B (LH+)—Terminal B
― Terminal 3A (LH-)—Terminal A
― Terminal 3D (RH+)—Terminal B
― Terminal 3F (RH-)—Terminal A
For rear door speaker
― Terminal 3I (LH+)—Terminal B
― Terminal 3G (LH-)—Terminal A
― Terminal 3C (RH+)—Terminal B
― Terminal 3E (RH-)—Terminal A
For rear speaker
― Terminal 4G (LH+)—Terminal B
― Terminal 4E (LH-)—Terminal A
― Terminal 4D (RH+)—Terminal B
― Terminal 4C (RH-)—Terminal A
For center speaker
― Terminal 3H (+)—Terminal B
― Terminal 3J (-)—Terminal A
• Is there continuity?
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Yes
|
Go to the next step.
|
|
No
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Repair or replace the repair related wiring harnesses.
|
||
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6
|
• Turn the ignition switch to the LOCK position.
• Disconnect the audio amplifier connector.
• Inspect the continuity between the audio amplifier connector and ground:
For front door speaker
― Terminal 3L (LH+)—GND
― Terminal 3N (LH-)—GND
― Terminal 3K (RH+)—GND
― Terminal 3M (RH-)—GND
For front speaker
― Terminal 3B (LH+)—GND
― Terminal 3A (LH-)—GND
― Terminal 3D (RH+)—GND
― Terminal 3F (RH-)—GND
For rear door speaker
― Terminal 3I (LH+)—GND
― Terminal 3G (LH-)—GND
― Terminal 3C (RH+)—GND
― Terminal 3E (RH-)—GND
For rear speaker
― Terminal 4G (LH+)—GND
― Terminal 4E (LH-)—GND
― Terminal 4D (RH+)—GND
― Terminal 4C (RH-)—GND
For center speaker
― Terminal 3H (+)—GND
― Terminal 3J (-)—GND
• Is there continuity?
|
Yes
|
Repair or replace the related wiring harness or speaker.
|
|
No
|
Go to the next step.
|
||
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7
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• Turn the ignition switch to LOCK position.
• Disconnect the audio amplifier connector and the audio unit/car-navigation unit connector (24-pin).
• Inspect the continuity between audio amplifier terminal 2N (vehicle wiring harness-side) and audio unit/car-navigation unit terminal 1J (24-pin, vehicle wiring harness- side).
• Is there continuity?
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Yes
|
Go to the next step.
|
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No
|
Repair or replace the wiring harness between the audio amplifier and the audio unit/car-navigation unit.
|
||
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8
|
• Turn the ignition switch to LOCK position.
• Disconnect the audio unit/car-navigation unit connector (24-pin) and audio amplifier connectors.
• Inspect the for an open or short circuit in following wiring harnesses:
• Is there continuity?
|
Yes
|
Repair or replace malfunctioning part.
|
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No
|
Go to the next step.
|
||
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9
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• Is there any sound?
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Yes
|
The system is normal.
|
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No
|
Replace the audio amplifier.
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