NO.4 NO SOUND FROM AUDIO SYSTEM [CAR-NAVIGATION SYSTEM]

id0903e8910400

4

No sound from audio system

POSSIBLE CAUSE

•  Poor connection of microphone connector, terminal damage

•  Poor connection of car-navigation unit connector, terminal damage

•  Poor connection of Bluetooth unit connector, terminal damage

•  Microphone malfunction

•  Open circuit in wiring harness between car-navigation unit and each speaker.

•  Speaker malfunction

•  Bluetooth unit malfunction

•  Car-navigation unit malfunction

Note

•  Car-navigation unit turns to “AUDIO OFF” when the “TALK” button is turned to ON with the microphone disconnected.

4	No sound from audio system
POSSIBLE CAUSE	• Poor connection of microphone connector, terminal damage • Poor connection of car-navigation unit connector, terminal damage • Poor connection of Bluetooth unit connector, terminal damage • Microphone malfunction • Open circuit in wiring harness between car-navigation unit and each speaker. • Speaker malfunction • Bluetooth unit malfunction • Car-navigation unit malfunction Note • Car-navigation unit turns to “AUDIO OFF” when the “TALK” button is turned to ON with the microphone disconnected.

Diagnostic procedure

STEP

INSPECTION

ACTION

1

•  Turn the ignition switch to ACC position.

•  Start audio system by pressing the audio system button (AM/FM, DISC), after the map is displayed on the screen.

•  Adjust volume to 30 with VOLUME knob.

•  Is there sound from all speaker/tweeter?

Yes

The system is normal.

No

Go to the next step.

2

•  Start diagnostic function and indicate “Vehicle Signal” check screen.
(See SELF-DIAGNOSTIC [CAR-NAVIGATION SYSTEM].)

•  Drive the vehicle.

•  Check the “Microphone” on the diagnosis screen

•  Does the “Microphone” indicate OK?

Yes

Go to the next step.

No

Go to Step 14.

3

•  Turn the ignition switch to LOCK position.

•  Inspect the connection of microphone connector (6-pin).

•  Is the connector securely connected?

Yes

Go to the next step.

No

Securely connect the microphone.

4

•  Turn the ignition switch to LOCK position.

•  Disconnect the microphone connector (6-pin).

•  Inspect both microphone connector and wiring harness-side connector for poor connection (such as damaged/pulled out pins, corrosion).

•  Are all the pins normal?

Yes

Go to the next step.

No

If the microphone connector is wrong:

•  Replace the microphone.
(See MICROPHONE REMOVAL/INSTALLATION.)

If the wiring harness-side connector is wrong:

•  Repair or replace the pins and/or the connector.

5

•  Remove the Bluetooth unit.
(See Bluetooth UNIT REMOVAL/INSTALLATION.)

•  Inspect the connection of the Bluetooth unit connector (6-pin).

•  Is the connector securely connected?

Yes

Go to the next step.

No

Securely connect the Bluetooth unit connector.

6

•  Disconnect the Bluetooth unit connector (24-pin).

•  Inspect both Bluetooth unit connector and wiring harness-side connector for poor connection (such as damaged/pulled out pins, corrosion).

•  Are all the pins normal?

Yes

Go to the next step.

No

If the Bluetooth unit connector is wrong:

•  Replace the Bluetooth unit.
(See Bluetooth UNIT REMOVAL/INSTALLATION.)

If the wiring harness-side connector is wrong:

•  Repair or replace the pins and/or the connector.

7

•  Turn the ignition switch to LOCK position.

•  Inspect the connection of car-navigation unit connector (6-pin).

Is the connector securely connected?

Yes

Go to the next step.

No

Securely connect the car-navigation unit.

8

•  Turn the ignition switch to LOCK position.

•  Disconnect the car-navigation unit connector (6-pin).

•  Inspect both car-navigation unit connector and wiring harness-side connector for poor connection (such as damaged/pulled out pins, corrosion).

•  Are all the pins normal?

Yes

Go to the next step.

No

If the car-navigation unit connector is wrong:

•  Replace the car-navigation unit.
(See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

If the wiring harness-side connector is wrong:

•  Repair or replace the pins and/or the connector.

9

•  Inspect the following wiring harness the microhone and Bluetooth unit.

―  Terminal A (6-pin, MIC+)—Terminal A (24-pin, MIC IN+)

―  Terminal B (6-pin, MIC-)—Terminal B (24-pin, MIC IN-)

―  Terminal C (6-pin, MIC B+)—Terminal C (24-pin, MIC B+)

―  Terminal D (6-pin, GND)—Terminal D (24-pin, MIC GND)

―  Terminal F (6-pin, MIC SENSE)—Terminal E (24-pin, MIC SENSE)

•  Is there open or short circuit?

Yes

Repair or replace suspected wiring harness.

No

Go to the next step.

10

•  Inspect the following wiring harness between the Bluetooth unit and car-navigation unit.

―  Terminal G (24-pin, MIC OUT +)—Terminal 3A (6-pin, MIC+)

―  Terminal H (24-pin, MIC OUT -)—Terminal 3B (6-pin, MIC-)

―  Terminal E (24-pin, MIC SENSE)—Terminal 3E (6-pin, MIC SENSE)

•  Is there open or short circuit?

Yes

Repair or replace suspected wiring harness.

No

Replair the microhone.

(See MICROPHONE REMOVAL/INSTALLATION.)

11

•  Turn the ignition switch to LOCK position.

•  Inspect the connection of car-navigation unit connector (24-pin).

•  Is the connector securely connected?

Yes

Go to the next step.

No

Securely connect the car-navigation unit.

12

•  Turn the ignition switch to LOCK position.

•  Disconnect the car-navigation unit connector (24-pin).

•  Inspect both car-navigation unit connector and wiring harness-side connector for poor connection (such as damaged/pulled out pins, corrosion).

•  Are all the pins normal?

Yes

Go to the next step.

No

If the car-navigation unit connector is wrong:

•  Replace the car-navigation unit.
(See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

If the wiring harness-side connector is wrong:

•  Repair or replace the pins and/or the connector.

13

•  Turn the ignition switch to LOCK position.

•  Inspect the connection of each speaker connector (2-pin).

•  Are the connectors securely connected?

Yes

Go to the next step.

No

Securely connect the speaker.

14

•  Turn the ignition switch to LOCK position.

•  Disconnect the all speaker connectors.

•  Inspect each speaker and wiring harness-side connector for poor connection (such as damaged/pulled out pins, corrosion.)

•  Are all the pins normal?

Yes

Go to the next step.

No

If the speaker or tweeter connector is wrong:

•  Replace the suspect part.
(See FRONT DOOR SPEAKER REMOVAL/INSTALLATION.)

(See REAR SPEAKER REMOVAL/INSTALLATION.)

If the wiring harness-side connector is wrong:

•  Repair or replace the pins and/or the connector.

15

•  Inspect for continuity between following terminals:

―  Car-navigation unit terminal 1A (LH+)—audio amplifier terminal 2L

―  Car-navigation unit terminal 1C (LH-)—audio amplifier terminal 2J

―  Car-navigation unit terminal 1D (RH+)—audio amplifier terminal 2K

―  Car-navigation unit terminal 1F (RH-)—audio amplifier terminal 2I

•  Is there continuity?

Yes

Go to the next step.

No

Repair or replace the related wiring harness between the audio amplifier and the car-navigation unit.

Then go to the next step.

16

•  Inspect the connection of the audio amplifier connector.

•  Is the connector connected securely?

Yes

Go to the next step.

No

Connect the audio amplifier securely.

17

•  Turn the ignition switch to the LOCK position.

•  Disconnect the audio amplifier connector.

•  Inspect for continuity between following terminals: Inspect the continuity between the following terminals of the audio amplifier connector and speaker connector.

―  Audio amplifier terminal 3A—front speaker (LH) terminal A

―  Audio amplifier terminal 3B—front speaker (LH) terminal B

―  Audio amplifier terminal 3F—front speaker (RH) terminal A

―  Audio amplifier terminal 3D—front speaker (RH) terminal B

―  Audio amplifier terminal 3N—front door speaker (LH) terminal A

―  Audio amplifier terminal 3L—front door speaker (LH) terminal B

―  Audio amplifier terminal 3M—front door speaker (RH) terminal A

―  Audio amplifier terminal 3K—front door speaker (RH) terminal B

―  Audio amplifier terminal 3G—rear door speaker (LH) terminal A

―  Audio amplifier terminal 3I—rear door speaker (LH) terminal B

―  Audio amplifier terminal 3E—rear door speaker (RH) terminal A

―  Audio amplifier terminal 3C—rear door speaker (RH) terminal B

―  Audio amplifier terminal 4E—rear speaker (LH) terminal A

―  Audio amplifier terminal 4G—rear speaker (LH) terminal B

―  Audio amplifier terminal 4C—rear speaker (RH) terminal A

―  Audio amplifier terminal 4D—rear speaker (RH) terminal B

―  Audio amplifier terminal 3J—center speaker terminal A

―  Audio amplifier terminal 3H—center speaker terminal B

•  Is there continuity?

Yes

Go to the next step.

No

Repair or replace the related wiring harnesses.

18

•  Inspect each speaker.

•  Are all speakers normal?

Yes

Replace the car-navigation unit.

(See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

No

Replace the malfunctioning speaker.

STEP	INSPECTION		ACTION
1	• Turn the ignition switch to ACC position. • Start audio system by pressing the audio system button (AM/FM, DISC), after the map is displayed on the screen. • Adjust volume to 30 with VOLUME knob. • Is there sound from all speaker/tweeter?	Yes	The system is normal.
1		No	Go to the next step.
2	• Start diagnostic function and indicate “Vehicle Signal” check screen. (See SELF-DIAGNOSTIC [CAR-NAVIGATION SYSTEM].) • Drive the vehicle. • Check the “Microphone” on the diagnosis screen • Does the “Microphone” indicate OK?	Yes	Go to the next step.
2		No	Go to Step 14.
3	• Turn the ignition switch to LOCK position. • Inspect the connection of microphone connector (6-pin). • Is the connector securely connected?	Yes	Go to the next step.
3		No	Securely connect the microphone.
4	• Turn the ignition switch to LOCK position. • Disconnect the microphone connector (6-pin). • Inspect both microphone connector and wiring harness-side connector for poor connection (such as damaged/pulled out pins, corrosion). • Are all the pins normal?	Yes	Go to the next step.
4		No	If the microphone connector is wrong: • Replace the microphone. (See MICROPHONE REMOVAL/INSTALLATION.) If the wiring harness-side connector is wrong: • Repair or replace the pins and/or the connector.
5	• Remove the Bluetooth unit. (See Bluetooth UNIT REMOVAL/INSTALLATION.) • Inspect the connection of the Bluetooth unit connector (6-pin). • Is the connector securely connected?	Yes	Go to the next step.
5		No	Securely connect the Bluetooth unit connector.
6	• Disconnect the Bluetooth unit connector (24-pin). • Inspect both Bluetooth unit connector and wiring harness-side connector for poor connection (such as damaged/pulled out pins, corrosion). • Are all the pins normal?	Yes	Go to the next step.
6		No	If the Bluetooth unit connector is wrong: • Replace the Bluetooth unit. (See Bluetooth UNIT REMOVAL/INSTALLATION.) If the wiring harness-side connector is wrong: • Repair or replace the pins and/or the connector.
7	• Turn the ignition switch to LOCK position. • Inspect the connection of car-navigation unit connector (6-pin). Is the connector securely connected?	Yes	Go to the next step.
7		No	Securely connect the car-navigation unit.
8	• Turn the ignition switch to LOCK position. • Disconnect the car-navigation unit connector (6-pin). • Inspect both car-navigation unit connector and wiring harness-side connector for poor connection (such as damaged/pulled out pins, corrosion). • Are all the pins normal?	Yes	Go to the next step.
8		No	If the car-navigation unit connector is wrong: • Replace the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.) If the wiring harness-side connector is wrong: • Repair or replace the pins and/or the connector.
9	• Inspect the following wiring harness the microhone and Bluetooth unit. ― Terminal A (6-pin, MIC+)—Terminal A (24-pin, MIC IN+) ― Terminal B (6-pin, MIC-)—Terminal B (24-pin, MIC IN-) ― Terminal C (6-pin, MIC B+)—Terminal C (24-pin, MIC B+) ― Terminal D (6-pin, GND)—Terminal D (24-pin, MIC GND) ― Terminal F (6-pin, MIC SENSE)—Terminal E (24-pin, MIC SENSE) • Is there open or short circuit?	Yes	Repair or replace suspected wiring harness.
9		No	Go to the next step.
10	• Inspect the following wiring harness between the Bluetooth unit and car-navigation unit. ― Terminal G (24-pin, MIC OUT +)—Terminal 3A (6-pin, MIC+) ― Terminal H (24-pin, MIC OUT -)—Terminal 3B (6-pin, MIC-) ― Terminal E (24-pin, MIC SENSE)—Terminal 3E (6-pin, MIC SENSE) • Is there open or short circuit?	Yes	Repair or replace suspected wiring harness.
10		No	Replair the microhone. (See MICROPHONE REMOVAL/INSTALLATION.)
11	• Turn the ignition switch to LOCK position. • Inspect the connection of car-navigation unit connector (24-pin). • Is the connector securely connected?	Yes	Go to the next step.
11		No	Securely connect the car-navigation unit.
12	• Turn the ignition switch to LOCK position. • Disconnect the car-navigation unit connector (24-pin). • Inspect both car-navigation unit connector and wiring harness-side connector for poor connection (such as damaged/pulled out pins, corrosion). • Are all the pins normal?	Yes	Go to the next step.
12		No	If the car-navigation unit connector is wrong: • Replace the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.) If the wiring harness-side connector is wrong: • Repair or replace the pins and/or the connector.
13	• Turn the ignition switch to LOCK position. • Inspect the connection of each speaker connector (2-pin). • Are the connectors securely connected?	Yes	Go to the next step.
13		No	Securely connect the speaker.
14	• Turn the ignition switch to LOCK position. • Disconnect the all speaker connectors. • Inspect each speaker and wiring harness-side connector for poor connection (such as damaged/pulled out pins, corrosion.) • Are all the pins normal?	Yes	Go to the next step.
14		No	If the speaker or tweeter connector is wrong: • Replace the suspect part. (See FRONT DOOR SPEAKER REMOVAL/INSTALLATION.) (See REAR SPEAKER REMOVAL/INSTALLATION.) If the wiring harness-side connector is wrong: • Repair or replace the pins and/or the connector.
15	• Inspect for continuity between following terminals: ― Car-navigation unit terminal 1A (LH+)—audio amplifier terminal 2L ― Car-navigation unit terminal 1C (LH-)—audio amplifier terminal 2J ― Car-navigation unit terminal 1D (RH+)—audio amplifier terminal 2K ― Car-navigation unit terminal 1F (RH-)—audio amplifier terminal 2I • Is there continuity?	Yes	Go to the next step.
15		No	Repair or replace the related wiring harness between the audio amplifier and the car-navigation unit. Then go to the next step.
16	• Inspect the connection of the audio amplifier connector. • Is the connector connected securely?	Yes	Go to the next step.
16		No	Connect the audio amplifier securely.
17	• Turn the ignition switch to the LOCK position. • Disconnect the audio amplifier connector. • Inspect for continuity between following terminals: Inspect the continuity between the following terminals of the audio amplifier connector and speaker connector. ― Audio amplifier terminal 3A—front speaker (LH) terminal A ― Audio amplifier terminal 3B—front speaker (LH) terminal B ― Audio amplifier terminal 3F—front speaker (RH) terminal A ― Audio amplifier terminal 3D—front speaker (RH) terminal B ― Audio amplifier terminal 3N—front door speaker (LH) terminal A ― Audio amplifier terminal 3L—front door speaker (LH) terminal B ― Audio amplifier terminal 3M—front door speaker (RH) terminal A ― Audio amplifier terminal 3K—front door speaker (RH) terminal B ― Audio amplifier terminal 3G—rear door speaker (LH) terminal A ― Audio amplifier terminal 3I—rear door speaker (LH) terminal B ― Audio amplifier terminal 3E—rear door speaker (RH) terminal A ― Audio amplifier terminal 3C—rear door speaker (RH) terminal B ― Audio amplifier terminal 4E—rear speaker (LH) terminal A ― Audio amplifier terminal 4G—rear speaker (LH) terminal B ― Audio amplifier terminal 4C—rear speaker (RH) terminal A ― Audio amplifier terminal 4D—rear speaker (RH) terminal B ― Audio amplifier terminal 3J—center speaker terminal A ― Audio amplifier terminal 3H—center speaker terminal B • Is there continuity?	Yes	Go to the next step.
17		No	Repair or replace the related wiring harnesses.
18	• Inspect each speaker. • Are all speakers normal?	Yes	Replace the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)
18	• Inspect each speaker. • Are all speakers normal?	No	Replace the malfunctioning speaker.