#
DIAGNOSTIC ASSIST FUNCTION

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## Structural View

Switch

## LCD Inspection

1. With the audio on, first press the POWER button, then 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 in the LCD are not truncated or faint. | The LCD is normal.
Other | Replace the center panel.

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 on, press the POWER button and the CLOCK button simultaneously 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 center panel.

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 on, press the POWER button and the AUTO-M button simultaneously 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 2. Front driver-side door speaker 3. Right rear door speaker 4. Left rear door speaker | - | Yes | The speakers and wiring harness between the base unit and speakers are normal.
No | • Inspect the following parts. - Malfunctioning speaker - Wiring harness between the base unit and the malfunctioning speaker

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

## Radio Reception Condition

1. With the audio on and while in radio mode, press the POWER button and preset button 2 simultaneously for approx. 1 s.

2. The diagnostic assist function displays the radio reception condition in 10 levels (0-9) to assist in determining the condition of the antenna, antenna feeders, and base unit (tuner).

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