DIAGNOSTIC ASSIST FUNCTION [AUDIO]

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Activation Procedure

1. Turn the ignition switch to the ACC or ON position.

2. Press the POWER/VOLUME button to turn the audio on.

3. Press the POWER/VOLUME button and SEEK button (up) simultaneously to launch the diagnostic assist function.

With RDS (radio data system)

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Without RDS (radio data system)

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4. Verify that the launched diagnostic assist function is displayed on the screen.

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5. Input each diagnostic assist code using the diagnostic assist screen. (See Diagnostic Assist Code List.)

Diagnostic assist screen

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No.

Name

Content/function

1

Diagnostic assist code display screen

Displays the diagnostic assist code.

2

Diagnostic assist code input button

Inputs the diagnostic assist code.

3

DEL button

Clears the diagnostic assist code.

4

Diagnostic content display screen

Displays the diagnostic content.

5

Diagnostic results display screen

Displays the diagnostic results.

6

ENTER button

Transfers to the diagnostic assist function.

No.	Name	Content/function
1	Diagnostic assist code display screen	Displays the diagnostic assist code.
2	Diagnostic assist code input button	Inputs the diagnostic assist code.
3	DEL button	Clears the diagnostic assist code.
4	Diagnostic content display screen	Displays the diagnostic content.
5	Diagnostic results display screen	Displays the diagnostic results.
6	ENTER button	Transfers to the diagnostic assist function.

Diagnostic Assist Code List

Diagnostic assist code	Content/function
01	Diagnostic Assist Code "01" Display Inspection
02	Diagnostic Assist Code "02" Switch Inspection
03	Diagnostic Assist Code "03" Speaker Inspection
04	Diagnostic Assist Code "04" Radio Reception Condition Inspection
05	Diagnostic Assist Code "05" Antenna Control Output Condition Inspection
06	Diagnostic Assist Code "06" Manufacturer Verification
07	Diagnostic Assist Code "07" Audio Amplifier Specification Verification
09	Diagnostic Assist Code "09" Radio SEEK Inspection
11	Diagnostic Assist Code "11" CD Diagnostic inspection
14	Diagnostic Assist Code "14" dial Inspection Verification
15	Diagnostic Assist Code "15" Vehicle NAVI Signal Verification
16	Diagnostic Assist Code "16" Exterior Device Connection Information Clearing

Diagnostic Assist Code "01" Display Inspection

1. Launch the diagnostic assist function. (See Activation Procedure.)

2. Input the diagnostic assist code "01"using the diagnostic input screen.

3. Select "ENTER".

4. Inspect according to the following table:

Inspection

Display

Action

• Verify that the launched display inspection mode is displayed on the screen.

• Verify the display.

Red→Green→Blue→White→

Black→Color bar→Gray bar

Display functions normally.

Display is normal.

Display does not function normally.

If the display does not display/operate normally, replace the audio unit.

(See AUDIO UNIT REMOVAL/INSTALLATION.)

Inspection	Display	Action
• Verify that the launched display inspection mode is displayed on the screen. • Verify the display.	Red→Green→Blue→White→ Black→Color bar→Gray bar	Display functions normally.	Display is normal.
Display does not function normally.	If the display does not display/operate normally, replace the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION.)

5. Press the POWER/VOLUME button and return to the diagnostic assist screen.

6. Press the POWER/VOLUME button and end the diagnostic assist function.

Diagnostic Assist Code "02" Switch Inspection

1. Launch the diagnostic assist function. (See Activation Procedure.)

2. Input the diagnostic assist code "02"using the diagnostic input screen.

3. Select "ENTER".

4. Inspect according to the following table:

Inspection

Display

Action

•  Verify that the launched switch inspection mode is displayed on the screen.

•  Operate all of the switches (press).

•  Does the buzzer sound?

Check SW

Yes

The switch is normal.

No

Replace the audio unit.

(See AUDIO UNIT REMOVAL/INSTALLATION.)

Inspection	Display	Action
• Verify that the launched switch inspection mode is displayed on the screen. • Operate all of the switches (press). • Does the buzzer sound?	Check SW	Yes	The switch is normal.
No	Replace the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION.)

5. Press the POWER/VOLUME button and return to the diagnostic assist screen.

6. Press the POWER/VOLUME button and end the diagnostic assist function.

Diagnostic Assist Code "03" Speaker Inspection

1. Launch the diagnostic assist function. (See Activation Procedure.)

2. Input the diagnostic assist code "03"using the diagnostic input screen.

3. Select "ENTER".

4. Inspect according to the following table:

Inspection

Display

Action

•  Verify that the launched speaker inspection mode is displayed on the screen.

•  Does each speaker output sound in the following order?:

Without Bose^®

―  Front door speaker (LH) and tweeter (LH)

―  Front door speaker (RH) and tweeter (RH)

―  Rear door speaker (RH)

―  Rear door speaker (LH)

With Bose^®

―  Front door speaker (LH)

―  Front speaker (LH)

―  Center speaker

―  Front door speaker (RH)

―  Front speaker (RH)

―  Rear door speaker (RH)

―  Rear speaker (RH)

―  Rear door speaker (LH)

―  Rear speaker (LH)

―  Base-box

Check Speaker

Yes

The speakers and the wiring harness between the audio unit/audio amplifier and speakers are normal.

No

•  If no sound is produced from all of the speakers.
(See NO.3 NO SOUND FROM ALL SPEAKERS [ENTIRE AUDIO SYSTEM].)

•  If no sound is produced from some of the speakers.
(See NO.4 NO SOUND FROM SOME SPEAKERS [ENTIRE AUDIO SYSTEM].)

Inspection	Display	Action
• Verify that the launched speaker inspection mode is displayed on the screen. • Does each speaker output sound in the following order?: Without Bose^® ― Front door speaker (LH) and tweeter (LH) ― Front door speaker (RH) and tweeter (RH) ― Rear door speaker (RH) ― Rear door speaker (LH) With Bose^® ― Front door speaker (LH) ― Front speaker (LH) ― Center speaker ― Front door speaker (RH) ― Front speaker (RH) ― Rear door speaker (RH) ― Rear speaker (RH) ― Rear door speaker (LH) ― Rear speaker (LH) ― Base-box	Check Speaker	Yes	The speakers and the wiring harness between the audio unit/audio amplifier and speakers are normal.
No	• If no sound is produced from all of the speakers. (See NO.3 NO SOUND FROM ALL SPEAKERS [ENTIRE AUDIO SYSTEM].) • If no sound is produced from some of the speakers. (See NO.4 NO SOUND FROM SOME SPEAKERS [ENTIRE AUDIO SYSTEM].)

5. Press the POWER/VOLUME button and return to the diagnostic assist screen.

6. Press the POWER/VOLUME button and end the diagnostic assist function.

Diagnostic Assist Code "04" Radio Reception Condition Inspection

1. Launch the diagnostic assist function. (See Activation Procedure.)

2. Input the diagnostic assist code "04"using the diagnostic input screen.

3. Select "ENTER".

4. Inspect according to the following table:

Caution

• Even if the system is normal, radio reception may be difficult depending on where the system is inspected (indoors/outdoors, or conditions at the location). Before inspecting the system, verify that radio reception is adequate.

• When performing the inspection, select the best area for receiving radio frequencies.

Inspection

Display

Action

Verify that the launched radio reception condition inspection mode is displayed on the screen.

LEVEL-10 879—LEVEL-5 879

Glass antenna, center roof antenna, antenna feeder and audio unit are normal.

LEVEL-4 879—LEVEL-3 879

Change frequencies and re-perform the inspection.

LEVEL-2 879—LEVEL-0 879

Inspect the glass antenna and antenna feeder.

(See GLASS ANTENNA INSPECTION.)

(See ANTENNA FEEDER NO.1 INSPECTION.)

(See ANTENNA FEEDER NO.2 INSPECTION.)

• If the glass antenna or antenna feeder is not normal, replace the malfunctioning part.
(See FILAMENT REPAIR.)

• If the glass antenna, center roof antenna, and antenna feeder are normal, replace the audio unit.
(See AUDIO UNIT REMOVAL/INSTALLATION.)

Inspection	Display	Action
Verify that the launched radio reception condition inspection mode is displayed on the screen.	LEVEL-10 879—LEVEL-5 879	Glass antenna, center roof antenna, antenna feeder and audio unit are normal.
LEVEL-4 879—LEVEL-3 879	Change frequencies and re-perform the inspection.
LEVEL-2 879—LEVEL-0 879	Inspect the glass antenna and antenna feeder. (See GLASS ANTENNA INSPECTION.) (See ANTENNA FEEDER NO.1 INSPECTION.) (See ANTENNA FEEDER NO.2 INSPECTION.) • If the glass antenna or antenna feeder is not normal, replace the malfunctioning part. (See FILAMENT REPAIR.) • If the glass antenna, center roof antenna, and antenna feeder are normal, replace the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION.)

5. Press the POWER/VOLUME button and return to the diagnostic assist screen.

6. Press the POWER/VOLUME button and end the diagnostic assist function.

Diagnostic Assist Code "05" Antenna Control Output Condition Inspection

1. Launch the diagnostic assist function. (See Activation Procedure.)

2. Input the diagnostic assist code "05"using the diagnostic input screen.

3. Select "ENTER".

4. Inspect according to the following table:

Caution

• When performing the inspection, select the best area for receiving radio frequencies.

Inspection

Display

Action

Verify that the launched antenna control output condition inspection mode is displayed on the screen.

ANT-ON

Good sound quality

System is normal.

Bad sound quality

Inspect the glass antenna and antenna feeder.

(See GLASS ANTENNA INSPECTION.)

(See ANTENNA FEEDER NO.1 INSPECTION.)

(See ANTENNA FEEDER NO.2 INSPECTION.)

• If the glass antenna or antenna feeder is not normal, replace the malfunctioning part.
(See FILAMENT REPAIR.)

(See ANTENNA FEEDER NO.1 REMOVAL/INSTALLATION.)

(See ANTENNA FEEDER NO.2 REMOVAL/INSTALLATION.)

• If the glass antenna, center roof antenna, and antenna feeder are normal, replace the audio unit.
(See AUDIO UNIT REMOVAL/INSTALLATION.)

ANT-OFF

Replace the audio unit.

(See AUDIO UNIT REMOVAL/INSTALLATION.)

Inspection	Display	Action
Verify that the launched antenna control output condition inspection mode is displayed on the screen.	ANT-ON	Good sound quality	System is normal.
Bad sound quality	Inspect the glass antenna and antenna feeder. (See GLASS ANTENNA INSPECTION.) (See ANTENNA FEEDER NO.1 INSPECTION.) (See ANTENNA FEEDER NO.2 INSPECTION.) • If the glass antenna or antenna feeder is not normal, replace the malfunctioning part. (See FILAMENT REPAIR.) (See ANTENNA FEEDER NO.1 REMOVAL/INSTALLATION.) (See ANTENNA FEEDER NO.2 REMOVAL/INSTALLATION.) • If the glass antenna, center roof antenna, and antenna feeder are normal, replace the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION.)
ANT-OFF	Replace the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION.)

5. Press the POWER/VOLUME button and return to the diagnostic assist screen.

6. Press the POWER/VOLUME button and end the diagnostic assist function.

Diagnostic Assist Code "06" Manufacturer Verification

1. Refer to the manufacturer verification procedure. (See SUPPLIER IDENTIFICATION PROCEDURE [AUDIO].)

Diagnostic Assist Code "07" Audio Amplifier Specification Verification

1. Launch the diagnostic assist function. (See Activation Procedure.)

2. Input the diagnostic assist code "07"using the diagnostic input screen.

3. Select "ENTER".

4. Inspect according to the following table:

Inspection

Display

Action

•  Verify that the launched audio amplifier specification inspection mode is displayed on the screen.

•  Verify the audio amplifier specifications.

•  Are the audio amplifier specifications correct?

Without Bose^®

•  N

With Bose^®

•  L

Yes

System is normal.

No

Replace the audio unit.

(See AUDIO UNIT REMOVAL/INSTALLATION.)

Inspection	Display	Action
• Verify that the launched audio amplifier specification inspection mode is displayed on the screen. • Verify the audio amplifier specifications. • Are the audio amplifier specifications correct?	Without Bose^® • N With Bose^® • L	Yes	System is normal.
No	Replace the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION.)

5. Press the POWER/VOLUME button and return to the diagnostic assist screen.

6. Press the POWER/VOLUME button and end the diagnostic assist function.

Diagnostic Assist Code "09" Radio SEEK Inspection

1. Tune in the radio.

2. Launch the diagnostic assist function. (See Activation Procedure.)

3. Input the diagnostic assist code "09"using the diagnostic input screen.

4. Select "ENTER".

5. Inspect according to the following table:

Inspection

Display

Action

•  Verify that the launched radio SEEK inspection mode is displayed on the screen.

•  Verify “ANY-CONT ON” is displayed and select “OK”.

•  Verify “MOV SIG AREA” is displayed and select “OK”.

•  “Now SEEKING” is displayed.

•  Is the inspection result normal?

--ch

RECEIVED

Yes

System is normal.

No

Replace the audio unit.

(See AUDIO UNIT REMOVAL/INSTALLATION.)

Inspection	Display	Action
• Verify that the launched radio SEEK inspection mode is displayed on the screen. • Verify “ANY-CONT ON” is displayed and select “OK”. • Verify “MOV SIG AREA” is displayed and select “OK”. • “Now SEEKING” is displayed. • Is the inspection result normal?	--ch RECEIVED	Yes	System is normal.
No	Replace the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION.)

6. Press the POWER/VOLUME button and return to the diagnostic assist screen.

7. Press the POWER/VOLUME button and end the diagnostic assist function.

Diagnostic Assist Code "11" CD Diagnostic inspection

1. Verify that a CD is not inserted.

2. Launch the diagnostic assist function. (See Activation Procedure.)

3. Input the diagnostic assist code "11"using the diagnostic input screen.

4. Select "ENTER".

5. Inspect according to the following table:

Inspection

Display

Action

•  Verify that the launched CD diagnostic inspection mode is displayed on the screen.

•  Verify “INSERT NEW DISC” is displayed and insert a disc.

•  “NOW CHECKING USER DISC DEFECT” is displayed.

•  Verify the inspection results.

OK/DISC DEFECT

Yes

System is normal.

MALFUNCTION

No

Replace the audio unit.

(See AUDIO UNIT REMOVAL/INSTALLATION.)

Inspection	Display	Action
• Verify that the launched CD diagnostic inspection mode is displayed on the screen. • Verify “INSERT NEW DISC” is displayed and insert a disc. • “NOW CHECKING USER DISC DEFECT” is displayed. • Verify the inspection results.	OK/DISC DEFECT	Yes	System is normal.
MALFUNCTION	No	Replace the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION.)

6. Press the POWER/VOLUME button and return to the diagnostic assist screen.

7. Press the POWER/VOLUME button and end the diagnostic assist function.

Diagnostic Assist Code "14" dial Inspection Verification

1. Launch the diagnostic assist function. (See Activation Procedure.)

2. Input the diagnostic assist code "14"using the diagnostic input screen.

3. Select "ENTER".

4. Inspect according to the following table:

Inspection

Display

Action

•  Verify that the dial inspection screen is displayed.

•  Rotate the dial switch.

•  Does the switch rotation direction correspond to the direction displayed in the diagnostic assist screen?

VOL ENC ←→

TUNE ENC ←→

COMMANDAR ENC

Yes

System is normal.

No

Replace the audio unit.

(See AUDIO UNIT REMOVAL/INSTALLATION.)

Inspection	Display	Action
• Verify that the dial inspection screen is displayed. • Rotate the dial switch. • Does the switch rotation direction correspond to the direction displayed in the diagnostic assist screen?	VOL ENC ←→ TUNE ENC ←→ COMMANDAR ENC	Yes	System is normal.
No	Replace the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION.)

5. Press the POWER/VOLUME button and return to the diagnostic assist screen.

6. Press the POWER/VOLUME button and end the diagnostic assist function.

Diagnostic Assist Code "15" Vehicle NAVI Signal Verification

1. Launch the diagnostic assist function. (See Activation Procedure.)

2. Input the diagnostic assist code "15"using the diagnostic input screen.

3. Select "ENTER".

4. Verify that the vehicle NAVI signal verification screen is displayed.

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5. Verify the vehicle NAVI signal status displayed in the display.

Name

Content/function

TNS

Displays the TNS signal status.

REV

Displays the reverse signal status.

PKB

Displays the parking brake signal status.

SPEED

Vehicle speed is displayed.

ST-SW

Displays the steering switch connection status.

MIC

Verifies the microphone connection status.

NAVI (USB)

Verifies the NAVI (USB) connection status.

NAVI GPS ANT

Verifies the GPS antenna connection status.

Name	Content/function
TNS	Displays the TNS signal status.
REV	Displays the reverse signal status.
PKB	Displays the parking brake signal status.
SPEED	Vehicle speed is displayed.
ST-SW	Displays the steering switch connection status.
MIC	Verifies the microphone connection status.
NAVI (USB)	Verifies the NAVI (USB) connection status.
NAVI GPS ANT	Verifies the GPS antenna connection status.

6. Press the POWER/VOLUME button and return to the diagnostic assist screen.

7. Press the POWER/VOLUME button and end the diagnostic assist function.

Diagnostic Assist Code "16" Exterior Device Connection Information Clearing

Note

• Car-navigation unit, Bluetooth unit, and rear mount camera connection information, which are detected when the ignition is switched to ACC or ON the first time after connecting the negative battery cable, are recorded. The exterior device connection information clearing is a function which clears this connection information.

1. Launch the diagnostic assist function. (See Activation Procedure.)

2. Input the diagnostic assist code "16"using the diagnostic input screen.

3. Select "ENTER".

4. Verify that the exterior device connection information clearing screen is displayed.

5. Perform the exterior device connection information clearing according to the screen display.

6. Press the POWER/VOLUME button and return to the diagnostic assist screen.

7. Press the POWER/VOLUME button and end the diagnostic assist function.