NO.3 NO SOUND FROM ALL SPEAKERS [ENTIRE AUDIO SYSTEM]SM2446098
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

B1188:64, B1D19:96, U3000:09, U3003:16

Without using M-MDS (On-board diagnostic test mode)

10:Er07, 22:Er07, 10:Er10, 22:Er10, 09:Er21, 09:Er20
Possible cause
• Short circuit in wiring harness between audio unit and speaker
• Short circuit inside speaker
• Speaker malfunction
• 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
• Turn the ignition switch to the LOCK position.
• Remove the audio unit.
• Disconnect the audio 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.
Note
• If there is a short circuit between the speaker harness or speaker lead wire and ground, the protector circuit inside the audio unit operates to cut the sound.
No
Go to the next step.
3
• Remove the speaker.
• Disconnect the speaker connector (2-pin).
• Inspect the continuity between the speaker wiring harness-side connector (2-pin) terminal and ground:
For each speaker
― Terminal A — GND
― Terminal B — GND
• Is there continuity?
Yes
Replace the speaker.
No
Replace the audio unit.
(See AUDIO UNIT REMOVAL/INSTALLATION.)


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

10:Er07, 22:Er07, 10:Er10, 22:Er10, 09:Er21, 09:Er20

Car-navigation unit
• Device code 22/error code 07, 10
• Device code 09error code 21, 20
Possible cause
• Speaker malfunction
• Audio amplifier malfunction
• Open or short circuit in wiring harness between audio amplifier and speaker
• Open or short circuit in wiring harness between audio amplifier and audio unit/car-navigation unit (without integrated multi information display)
• Short circuit inside 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 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.
(See AUDIO AMPLIFIER REMOVAL/INSTALLATION.)
Go to the next step.
3
• Is there any sound?
Yes
The system is normal.
No
Go to the next step.
4
• 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 2L (LH+)—Terminal B
― Terminal 2N (LH-)—Terminal A
― Terminal 2K (RH+)—Terminal B
― Terminal 2M (RH-)—Terminal A
For front speaker
― Terminal 2B (LH+)—Terminal B
― Terminal 2A (LH-)—Terminal A
― Terminal 2D (RH+)—Terminal B
― Terminal 2F (RH-)—Terminal A
For rear door speaker
― Terminal 2I (LH+)—Terminal B
― Terminal 2G (LH-)—Terminal A
― Terminal 2C (RH+)—Terminal B
― Terminal 2E (RH-)—Terminal A
For rear speaker
― Terminal 2H (LH+)—Terminal B
― Terminal 2J (LH-)—Terminal A
― Terminal 3H (RH+)—Terminal B
― Terminal 3F (RH-)—Terminal A
For center speaker
― Terminal 3G (+)—Terminal B
― Terminal 3E (-)—Terminal A
• Is there continuity?
Yes
Go to the next step.
No
Repair or replace the repair related wiring harnesses.
5
• Turn the ignition switch to LOCK position.
• Disconnect the audio amplifier connector (40-pin).
• Inspect the continuity between the audio amplifier connector and ground:
For front door speaker
― Terminal 2L (LH+)—GND
― Terminal 2N (LH-)—GND
― Terminal 2K (RH+)—GND
― Terminal 2M (RH-)—GND
For front speaker
― Terminal 2B (LH+)—GND
― Terminal 2A (LH-)—GND
― Terminal 2D (RH+)—GND
― Terminal 2F (RH-)—GND
For rear door speaker
― Terminal 2I (LH+)—GND
― Terminal 2G (LH-)—GND
― Terminal 2C (RH+)—GND
― Terminal 2E (RH-)—GND
For rear speaker
― Terminal 2H (LH+)—GND
― Terminal 2J (LH-)—GND
― Terminal 3H (RH+)—GND
― Terminal 3F (RH-)—GND
For center speaker
― Terminal 3G (+)—GND
― Terminal 3E (-)—GND
• Is there continuity?
Yes
Repair or replace the related wiring harness or speaker unit.
Note
• If there is a short circuit between the speaker harness or speaker lead wire and ground, the protector circuit inside the audio unit/car-navigation unit (without integrated multi information display) operates to cut the sound.
No
Go to the next step.
6
• Turn the ignition switch to LOCK position.
• Disconnect the audio amplifier connector and audio unit/car-navigation unit (without integrated multi information display) connector (24-pin).
• Inspect the continuity between the audio amplifier terminal 1N (16-pin, vehicle harness-side) and audio unit/car-navigation unit (without integrated multi information display) 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/car-navigation unit (without integrated multi information display).
Then go to the next step.
7
• Is there any sound?
Yes
The system is normal
No
Replace the audio amplifier.
(See AUDIO AMPLIFIER REMOVAL/INSTALLATION.)