DIAGNOSTIC ASSIST FUNCTION [AUDIO (TOUCH PANEL TYPE AUDIO)]


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Display Inspection

1.  With the audio power on, press the POWER/VOLUME button and simultaneously press the DISP button for approx. 2 s or more.

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2.  Input diagnosis code “01” and press the ENTER switch.

3.  Inspect according to the following table:

INSPECTION

Information display

ACTION

<Information display>
Start the information display inspection mode.
The characters displayed on the information display are not truncated or faint.
The information display is normal.
Except above
Replace the base unit.
<Audio display>
Does the display change in the following order when the audio panel screen is touched?
•  Red → Green → Blue → White → Black → Color bar → Gray bar
Yes
The display on the audio panel is normal.
No
Remove the audio unit.

4.  Turn the audio off or the ignition switch to the LOCK position to stop the diagnostic assist function.


Switch Inspection

1.  With the audio power on, press the POWER/VOLUME button and simultaneously press the DISP button for approx. 2 s or more.

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2.  Input diagnosis code “02” and press the ENTER switch.

3.  Inspect according to the following table:

Inspection

Display

Action

•  Launch the switch inspection mode.
•  Operate all of the switches (press).
•  Does the buzzer sound?
Yes
The switch is normal.
No
Remove the audio unit.

4.  Turn the audio OFF or the ignition switch to the LOCK position to stop the diagnostic assist function.


Speaker Inspection

1.  With the audio power on, press the POWER/VOLUME button and simultaneously press the DISP button for approx. 2 s or more.

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2.  Input diagnosis code “03” and press the ENTER switch.

3.  Inspect according to the following table:

Inspection

Display

Action

•  Launch the speaker inspection mode.
•  Does each speaker output sound in the following order?:
Without Bose®
1.  Front door speaker (LH)
2.  Front door speaker (RH)
3.  Rear door speaker (RH)
4.  Rear door speaker (LH)
With Bose®
1.  Front door speaker and front speaker (LH)
2.  Center speaker
3.  Front door speaker and front speaker (RH)
4.  Rear door speaker (RH)
5.  Rear speaker (RH)
6.  Rear speaker (LH)
7.  Rear door speaker (LH)
Yes
The speakers and the wiring harness between the audio unit and speakers are normal.
No
•  If no sound is produced from all of the speakers.
•  If no sound is produced from some of the speakers.

4.  Turn the audio off or the ignition switch to the LOCK position to stop the diagnostic assist function.


Radio Reception Condition Inspection

1.  With the audio power on, press the POWER/VOLUME button and simultaneously press the DISP button for approx. 2 s or more.

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2.  Input diagnosis code “04” and press the ENTER switch.

3.  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 inspecting, select a frequency band (radio station) with the best reception.

Inspection

Display

Action

Start the radio reception condition inspection mode.
LEV-9 ↔ LEV5
Antenna, glass antenna, antenna feeder and audio unit are normal.
LEV-4 ↔ LEV3
Change frequencies and re-perform the inspection.
LEV-2 ↔ LEV0
Inspect the antenna, glass antenna and antenna feeder.
•  If either the antenna or the antenna feeder is not normal, replace the malfunctioning part.
•  If the antenna and antenna feeder are normal, replace the audio unit.

4.  Turn the audio off or the ignition switch to the LOCK position to stop the diagnostic assist function.


Antenna control condition inspection

1.  With the audio power on, press the POWER/VOLUME button and simultaneously press the DISP button for approx. 2 s or more.

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2.  Input diagnosis code “05” and press the ENTER switch.

3.  Inspect the antenna control condition according to the following table:

INSPECTION

Display

ACTION

Start antenna control condition inspection mode.
ANT-ON
Sound quality is good.
System is okay.
Sound quality is poor.
Inspect following parts.
•  Glass antenna
•  Antenna feeder
ANT-OFF
Replace the AUDIO unit.

4.  Turn the audio off or the ignition switch to the LOCK position to stop the diagnostic assist function.