NO.3 NO SOUND FROM ALL SPEAKERS [AUDIO]

id0903e1803200


Vehicles Without Bose®

3

No sound from all speakers/Possible DTC: 10:Er07, 10:Er10, 09:Er20, 09:Er21, 22:Er07, 22:Er10 / Device code 09, 22/error code 20, 21, 07, 10
Troubleshooting hints
•  Short circuit in wiring harness between audio unit/car-navigation unit and speaker
•  Short circuit inside speaker
•  Speaker malfunction (e.g., any foreign material, broken)
•  Audio unit/car-navigation unit malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
•  Press AUDIO CONT switch more than 2 seconds.
•  Play the CD or Radio.
•  Adjust the volume between “10” and “15”.
•  Is there any 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/car-navigation unit.
•  Disconnect the audio connector (24-pin).
•  Inspect the continuity between the audio unit/car-navigation 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 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 harnesses 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 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 the continuity?
Yes
Replace the speaker.
(See FRONT DOOR SPEAKER REMOVAL/INSTALLATION.)
(See REAR SPEAKER REMOVAL/INSTALLATION.)
No
Replace the audio unit/car-navigation unit.
(See CENTER PANEL UNIT REMOVAL/INSTALLATION.)
(See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY.)


Vehicles With Bose®

3

No sound from all speakers/Possible DTC: 06:Er07, 06:Er10, 09:Er20, 09:Er21, 10:Er07,10:Er10, 22:Er07, 22:Er10
Troubleshooting hints
•  Open or short circuit in wiring harness between audio amplifier and speaker
•  Short circuit inside speaker
•  Speaker malfunction (e.g., any foreign material, broken)
•  Audio amplifier malfunction

STEP

INSPECTION

ACTION
1
•  Press AUDIO CONT switch more than 2 seconds.
•  Play the CD or radio.
•  Adjust the volume between “10” and “15”.
•  Is there the sound?
Yes
The system is normal.
No
Go to the next step.
2
•  Measure the voltage at the audio amplifier terminal A. (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
•  Turn the ignition switch to LOCK position.
•  Disconnect the audio amplifier connector (8-pin, 16-pin).
•   Inspect continuity between the following terminals of the audio amplifier connector and speaker connector.
For front door speaker (LH)
―  Terminal 2B (16-pin)—Terminal D
―  Terminal 2D (16-pin)—Terminal C
For front tweeter (LH)
―  Terminal 2K (16-pin)—Terminal A
―  Terminal 2I (16-pin)—Terminal B
For front door speaker (RH)
―  Terminal 2O (16-pin)—Terminal D
―  Terminal 2M (16-pin)—Terminal C
For front tweeter (RH)
―  Terminal 2G (16-pin)—Terminal A
―  Terminal 2E (16-pin)—Terminal B
For rear speaker/tweeter (LH)
―  Terminal 1C (8-pin)—Terminal A (speaker)/terminal A (tweeter)
―  Terminal 1D (8-pin)—Terminal B (speaker)/terminal B (tweeter)
For rear speaker/tweeter (RH)
―  Terminal 1E (8-pin)—Terminal A (speaker)/terminal A (tweeter)
―  Terminal 1F (8-pin)—Terminal B (speaker)/terminal B (tweeter)
For center speaker
―  Terminal 1G (8-pin)—Terminal A
―  Terminal 1H (8-pin)—Terminal B
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the related wiring harnesses.
5
•  Turn the ignition switch to LOCK position
•  Disconnect the audio amplifier connector (8-pin, 16-pin).
•  Inspect the continuity between the audio amplifier connector and ground:
For front door speaker
―  Terminal 2D (16-pin, LH OUT+)—GND
―  Terminal 2B (16-pin, LH OUT-)—GND
―  Terminal 2O (16-pin, RH OUT+)—GND
―  Terminal 2M (16-pin, RH OUT-)—GND
For front tweeter
―  Terminal 2I (16-pin, LH OUT+)—GND
―  Terminal 2K (16-pin, LH OUT-)—GND
―  Terminal 2E (16-pin, RH OUT+)—GND
―  Terminal 2G (16-pin, RH OUT-)—GND
For rear speaker/tweeter
―  Terminal 1D (8-pin, LH OUT+)—GND
―  Terminal 1C (8-pin, LH OUT-)—GND
―  Terminal 1F (8-pin, RH OUT+)—GND
―  Terminal 1E (8-pin, RH OUT-)—GND
For center speaker
―  Terminal 1H (8-pin, CENTER OUT+)—GND
―  Terminal 1G (8-pin, CENTER OUT-)—GND
•  Is there continuity?
Yes
Repair or replace the related wiring harnesses or speaker unit.
Note
•  If there is a short circuit between the speaker harnesses or speaker lead wire and ground, the protector circuit inside the audio unit/car-navigation unit operates to cut the sound.
No
Go to the next step.
6
•  Turn the ignition switch to LOCK position.
•  Disconnect the audio amplifier connector (24-pin) and audio unit/car-navigation unit connector (24-pin).
•  Inspect the continuity between the audio amplifier terminal IL (24-pin, vehicle harness-side) and audio unit/car-navigation unit terminal J (24-pin, vehicle harness-side).
•  Is there continuity?
Yes
Replace the audio amplifier.
(See AUDIO AMPLIFIER REMOVAL/INSTALLATION.)
No
Repair or replace the wiring harness between the audio amplifier and audio unit/car-navigation unit.
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.)