DIAGNOSTIC ASSIST FUNCTION [CAR-NAVIGATION SYSTEM]

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Starting Procedure

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

2. Turn the audio power to ON.

3. While pressing the POWER/VOLUME button, simultaneously press the TUNE/AUDIO button for 1 s or more.

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4. Press the “Diagnostic assist code input switch”, and input the diagnostic assist code.

5. Select “ENTER”.

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

7. Press the POWER/VOLUME button to release the diagnostic assist function.

Diagnostic assist code input screen

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No.

Name

Content/function

1

Diagnostic assist code

Display the diagnostic assist code.

2

Diagnostic assist code input switch

Input the diagnostic assist code.

3

DEL

Clear the diagnostic assist code.

4

Diagnostic content

Display the diagnostic content.

5

ENTER

Go to the diagnostic assist function.

No.	Name	Content/function
1	Diagnostic assist code	Display the diagnostic assist code.
2	Diagnostic assist code input switch	Input the diagnostic assist code.
3	DEL	Clear the diagnostic assist code.
4	Diagnostic content	Display the diagnostic content.
5	ENTER	Go to the diagnostic assist function.

Diagnostic assist code table

No.	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” supplier identification
07	Diagnostic assist code “07” audio amplifier specification inspection
08	Diagnostic assist code “08” display open/close inspection
09	Diagnostic assist code “09” radio SEEK inspection
10	Diagnostic assist code “10” software version verification
11	Diagnostic assist code “11” DVD/CD drive inspection

Diagnostic assist code “01” display inspection

1. Press the “Diagnostic assist code input switch”, and input the diagnostic assist code “01”.

2. Select “ENTER”.

Inspection

Display

Action

• Launch the display inspection mode.

• Verify the display.

Red→Green→Blue→White→Black→Color bar→Grey bar→Position adjustment screen

The display displays normally.

The display is normal.

The display does not display normally.

Replace the car-navigation unit.

(See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

Inspection	Display	Action
• Launch the display inspection mode. • Verify the display.	Red→Green→Blue→White→Black→Color bar→Grey bar→Position adjustment screen	The display displays normally.	The display is normal.
The display does not display normally.	Replace the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

3. Press the POWER/VOLUME button to return to the diagnostic assist code input screen.

4. Press the POWER/VOLUME button to release the diagnostic assist function.

Diagnostic assist code “02” switch inspection

1. Press the “Diagnostic assist code input switch”, and input the diagnostic assist code “02”.

2. Select “ENTER”.

Inspection

Display

Action

•  Launch the switch inspection mode.

•  Operate all of the buttons (press).

•  Does the buzzer sound?

—

Yes

The button is normal.

No

Replace the car-navigation unit.

(See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

Inspection	Display	Action
• Launch the switch inspection mode. • Operate all of the buttons (press). • Does the buzzer sound?	—	Yes	The button is normal.
No	Replace the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

3. Press the POWER/VOLUME button to return to the diagnostic assist code input screen.

4. Press the POWER/VOLUME button to release the diagnostic assist function.

Diagnostic assist code “03” speaker inspection

1. Refer to “SPEAKER CONNECTION INSPECTION [WITH Bose®]”.

Diagnostic assist code “04” radio reception condition inspection

1. Launch the diagnostic assist function with the radio power on and the radio receiving broadcasts. (See Starting Procedure.)

2. Press the “Diagnostic assist code input switch”, and input the diagnostic assist code “04”.

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 (AM 522 kHz reception)

Action

Start the radio reception condition inspection mode.

LEV-10 522 ↔ LEV 5 522

Glass antenna, antenna feeder and car-navigation unit are normal.

LEV-4 522 ↔ LEV 3 522

Change frequencies and re-perform the inspection.

LEV-2 522 ↔ LEV 0 522

Inspect the glass antenna, antenna feeder.

• If either the glass antenna or the antenna feeder is not normal, replace the malfunctioning part.

• If the glass antenna, antenna feeder are normal, replace the car-navigation unit.
(See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

Inspection	Display (AM 522 kHz reception)	Action
Start the radio reception condition inspection mode.	LEV-10 522 ↔ LEV 5 522	Glass antenna, antenna feeder and car-navigation unit are normal.
LEV-4 522 ↔ LEV 3 522	Change frequencies and re-perform the inspection.
LEV-2 522 ↔ LEV 0 522	Inspect the glass antenna, antenna feeder. • If either the glass antenna or the antenna feeder is not normal, replace the malfunctioning part. • If the glass antenna, antenna feeder are normal, replace the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

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

6. Press the POWER/VOLUME button to release the diagnostic assist function.

Diagnostic assist code “05” antenna control output condition inspection

1. Launch the diagnostic assist function with the radio power on and the radio receiving broadcasts. (See Starting Procedure.)

2. Press the “Diagnostic assist code input switch”, and input the diagnostic assist code “05”.

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

Start antenna control condition inspection mode.

ANT-ON

Sound quality good.

System is okay.

Sound quality poor.

(See NO.1 NO RADIO RECEPTION (AM/FM)/NO OR LOW VOLUME [RADIO].)

ANT-OFF

Replace the car-navigation unit.

(See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

Inspection	Display	Action
Start antenna control condition inspection mode.	ANT-ON	Sound quality good.	System is okay.
Sound quality poor.	(See NO.1 NO RADIO RECEPTION (AM/FM)/NO OR LOW VOLUME [RADIO].)
ANT-OFF	Replace the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

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

6. Press the POWER/VOLUME button to release the diagnostic assist function.

Diagnostic assist code “06” supplier identification

1. Refer to “SUPPLIER IDENTIFICATION PROCEDURE [CAR-NAVIGATION SYSTEM]”.

Diagnostic assist code “07” audio amplifier specification inspection

1. Press the “Diagnostic assist code input switch”, and input the diagnostic assist code “07”.

2. Select “ENTER”.

Inspection

Display

Action

•  Launch the audio amplifier specification inspection mode.

•  Verify the audio amplifier specification.

•  Does the audio amplifier specification correspond?

Without Bose^®

•  N

With Bose^®

•  L

Yes

System is okay.

No

Replace the car-navigation unit.

(See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

Inspection	Display	Action
• Launch the audio amplifier specification inspection mode. • Verify the audio amplifier specification. • Does the audio amplifier specification correspond?	Without Bose^® • N With Bose^® • L	Yes	System is okay.
No	Replace the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

3. Press the POWER/VOLUME button to return to the diagnostic assist code input screen.

4. Press the POWER/VOLUME button to release the diagnostic assist function.

Diagnostic assist code “08” display open/close inspection

1. Press the “Diagnostic assist code input switch”, and input the diagnostic assist code “08”.

2. Select “ENTER”.

Inspection

Display

Action

•  Launch the audio display open/close inspection mode.

•  Does the display open/close in the following order?

―  close→tilt 1→tilt 2→tilt 3→tilt 4→tilt 5→tilt 6→open→close

—

Yes

System is okay.

No

Replace the car-navigation unit.

(See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

Inspection	Display	Action
• Launch the audio display open/close inspection mode. • Does the display open/close in the following order? ― close→tilt 1→tilt 2→tilt 3→tilt 4→tilt 5→tilt 6→open→close	—	Yes	System is okay.
No	Replace the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

3. Press the POWER/VOLUME button to return to the diagnostic assist code input screen.

4. Press the POWER/VOLUME button to release the diagnostic assist function.

Diagnostic assist code “09” radio SEEK inspection

1. Launch the diagnostic assist function with the radio power on and the radio receiving broadcasts. (See Starting Procedure.)

2. Press the “Diagnostic assist code input switch”, and input the diagnostic assist code “09”.

3. Select “ENTER”.

Inspection

Display

Action

•  Launch the radio SEEK inspection mode.

•  Verify the SEEK inspection to the directions on the screen.

•  Is the inspection result normal?

—ch RECEIVED

Yes

System is okay.

No

Inspect the glass antenna, antenna feeder.

•  If either the glass antenna or the antenna feeder is not normal, replace the malfunctioning part.

•  If the glass antenna, antenna feeder are normal, replace the car-navigation unit.
(See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

Inspection	Display	Action
• Launch the radio SEEK inspection mode. • Verify the SEEK inspection to the directions on the screen. • Is the inspection result normal?	—ch RECEIVED	Yes	System is okay.
No	Inspect the glass antenna, antenna feeder. • If either the glass antenna or the antenna feeder is not normal, replace the malfunctioning part. • If the glass antenna, antenna feeder are normal, replace the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

4. Press the POWER/VOLUME button to return to the diagnostic assist code input screen.

5. Press the POWER/VOLUME button to release the diagnostic assist function.

Diagnostic assist code “10” software version verification

1. Press the “Diagnostic assist code input switch”, and input the diagnostic assist code “10”.

2. Select “ENTER”.

3. Verify the software version.

Inspection

Display

Action

• Launch the software version verification mode.

• Verify the software version.

Display the software version.

—

Inspection	Display	Action
• Launch the software version verification mode. • Verify the software version.	Display the software version.	—

4. Press the POWER/VOLUME button to return to the diagnostic assist code input screen.

5. Press the POWER/VOLUME button to release the diagnostic assist function.

Diagnostic assist code “11” DVD/CD drive inspection

1. Press the “Diagnostic assist code input switch”, and input the diagnostic assist code “11”.

2. Select “ENTER”.

Inspection

Display

Action

•  Launch the DVD/CD drive inspection mode.

•  Insert the DVD or CD.

•  Is the inspection result normal?

USER DISC DEFECT

Yes

System is okay.

CD-DRIVE MALFUNCTION

No

Replace the car-navigation unit.

(See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

Inspection	Display	Action
• Launch the DVD/CD drive inspection mode. • Insert the DVD or CD. • Is the inspection result normal?	USER DISC DEFECT	Yes	System is okay.
CD-DRIVE MALFUNCTION	No	Replace the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)

3. Press the POWER/VOLUME button to return to the diagnostic assist code input screen.

4. Press the POWER/VOLUME button to release the diagnostic assist function.