DIAGNOSTIC ASSIST FUNCTION

#
DIAGNOSTIC ASSIST FUNCTION

B3E090266900W26

## Structural View

Buttons

.

1 | CLOCK button
2 | INFO button (with drive information system)
SET button (without drive information system)
3 | FM1/2 button
4 | AM button
5 | CD button
6 | TAPE/MD button
7 | SEEK UP button (with RDS)
Preset button "1" (without RDS)
8 | TA button (with RDS)
Preset button "2" (without RDS)
9 | PTY button (with RDS)
Preset button "3" (without RDS)
10 | Preset button "1" (with RDS)
RPT button (with RDS)
11 | Preset button "2" (with RDS)
SCAN button (without RDS)
12 | Preset button "3" (with RDS)
SEEK UP button (without RDS)
13 | SEEK DOWN button (with RDS)
Preset button "4" (without RDS)
14 | PROG button (with RDS)
Preset button "5" (without RDS)
15 | AF button (with RDS)
Preset button "6" (without RDS)
16 | POWER/VOLUME button
17 | Preset button "4" (with RDS)
RDM button (without RDS)
18 | Preset button "5" (with RDS)
PROG button (without RDS)
19 | Preset button "6" (with RDS)
SEEK DOWN button (without RDS)
20 | TUNE/TEXT/AUTO-M button (with RDS)
AUDIO CONT button (without RDS)
21 | AUDIO CONT button (with RDS)
TUNE/TEXT/AUTO-M button (without RDS)

## LCD Inspection

1. With the audio power on, press the POWER button and simultaneously press the SEEK button (upper) for approx. 1 s.

2. Inspect according to the following table:

INSPECTION | DISPLAY | ACTION
--- | --- | ---
Start the LCD inspection mode. |  | The characters displayed on the LCD are not truncated or faint. | The LCD is normal.
Except above | Replace the information display.

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

## Button Inspection

1. With the audio power on, press the POWER button and simultaneously press the CLOCK button for approx. 1 s.

2. Inspect according to the following table:

INSPECTION | DISPLAY | ACTION
--- | --- | ---
• Start the button inspection mode. • Press all buttons. | - | The buzzer sounds. | The button is normal.
The buzzer does not sound. | Replace the base unit.

3. 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 button and simultaneously press the AUTO-M button for approx. 1 s.

2. Inspect according to the following table:

INSPECTION | DISPLAY | ACTION
--- | --- | ---

• Start the speaker inspection mode.
• Does each speaker output sound in the following order?

  1. Front passenger-side door speaker and tweeter
  2. Front driver-side door speaker and tweeter
  3. Driver-side rear door speaker
  4. Passenger-side rear door speaker

-

Yes

Speakers, and wiring harness between the base unit and speakers are normal.

No

• Inspect the following parts.

  - Malfunctioning speaker
  - Wiring harness between base unit and malfunctioning speaker

3. 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 button and simultaneously press the PRESET 2 button for approx. 1 s.

2. 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. |  | Antenna, antenna feeder and base unit are normal
| Change the frequency (radio station) and inspect again.

Inspect the 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 base unit.

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