DIAGNOSTIC ASSIST FUNCTION [AUDIO]

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Display Inspection

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

2. Turn the audio unit power to ON.

3. While pressing the POWER/VOLUME switch, simultaneously press the SEEK/TRACK switch (UP) for 0.2 s or more.

With RDS (radio data system)

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Without RDS (radio data system)

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4. Inspect according to the following table:

Inspection | Display | Action
--- | --- | ---
• Launch the display inspection mode. • The characters displayed on the display are not truncated or faint. |  | Yes | Display is normal.
No | Replace the center panel. (See CENTER PANEL UNIT REMOVAL/INSTALLATION.) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY.)

5. Cancel the diagnostic assist function by either turning off the audio unit power or by turning the ignition switch to the LOCK position.

Switch Inspection

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

2. Turn the audio unit power to ON.

3. While pressing the POWER/VOLUME switch, simultaneously press the PRESET switch 3 for 0.2 s or more.

With RDS (radio data system)

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Without RDS (radio data system)

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4. Inspect according to the following table:

Inspection | Display | Action
--- | --- | ---
• Launch the switch inspection mode. • Operate all of the switches (press). • Does the buzzer sound? • Does the dial rotation direction correspond with the direction displayed in information display? | Switch name or dial rotation direction | Yes | The switch is normal.
No | Verify the switch. (See CONFIRMATION STEP 1: CENTER PANEL SWITCH CONFIRMATION [ENTIRE AUDIO SYSTEM].)

5. Cancel the diagnostic assist function by either turning off the audio unit power or by turning the ignition switch to the LOCK position.

Speaker Inspection

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

2. Turn the audio unit power to ON.

3. While pressing the POWER/VOLUME switch, simultaneously press the AUTO-M switch for 0.2 s or more.

With RDS (radio data system)

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Without RDS (radio data system)

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4. 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. Door speaker (LH) and tweeter (LH) 2. Door speaker (RH) and tweeter (RH) 3. Rear speaker (RH) (with 6 speaker type) 4. Rear speaker (LH) (with 6 speaker type) With Bose® 1. Door speaker (LH) and door upper speaker (LH) and center speaker 2. Door speaker (RH) and door upper speaker (RH) and center speaker 3. Rear speaker | ― | 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. (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. Cancel the diagnostic assist function by either turning off the audio unit power or by turning the ignition switch to the LOCK position.

Radio Reception Condition Inspection

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

2. Turn the audio unit power to ON.

3. Tune in the radio.

4. While pressing the POWER/VOLUME switch, simultaneously press the M/PRESET switch 2 for 0.2 s or more.

With RDS (radio data system)

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Without RDS (radio data system)

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5. 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
--- | --- | ---
Launch the radio reception condition inspection mode. | S-METER 10 — S-METER 5 | Manual antenna, antenna feeder and audio unit are normal.
S-METER 4 — S-METER 3 | Change frequencies and re-perform the inspection.
S-METER 2 — S-METER 0 | Inspect the manual antenna and antenna feeder. (See MANUAL ANTENNA INSPECTION.) (See ANTENNA FEEDER NO.1 INSPECTION.) (See ANTENNA FEEDER NO.2 INSPECTION.) • If either the manual antenna or the antenna feeder is not normal, replace the malfunctioning part. (See MANUAL ANTENNA REMOVAL/INSTALLATION.) (See ANTENNA FEEDER NO.1 REMOVAL/INSTALLATION.) (See ANTENNA FEEDER NO.2 REMOVAL/INSTALLATION.) • If the manual antenna and antenna feeder are normal, replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION.) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY.)

6. Cancel the diagnostic assist function by either turning off the audio unit power or by turning the ignition switch to the LOCK position.

Antenna Control Condition Inspection

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

2. Turn the audio unit power to ON.

3. Tune in the radio.

4. While pressing the POWER/VOLUME switch, simultaneously press the AM switch for 0.2 s or more.

With RDS (radio data system)

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Without RDS (radio data system)

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5. Inspect according to the following table:

Inspection | Display | Action
--- | --- | ---
Launch the antenna control condition inspection mode. | ANT-ON | Sound quality good. | System is okay.
Sound quality poor. | Inspect the manual antenna and antenna feeder. (See MANUAL ANTENNA INSPECTION.) (See ANTENNA FEEDER NO.1 INSPECTION.) (See ANTENNA FEEDER NO.2 INSPECTION.)
ANT-OFF | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION.) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY.)

6. Cancel the diagnostic assist function by either turning off the audio unit power or by turning the ignition switch to the LOCK position.

Audio Amplifier Control Condition Inspection

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

2. Turn the audio unit power to ON.

3. While pressing the AUTO-M switch, simultaneously press the CD switch for 0.2 s or more.

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4. Inspect according to the following table:

Inspection | Display | Action
--- | --- | ---
Launch the audio amplifier control condition inspection mode. | AMP-ON | System is okay.
AMP-OFF | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION.) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY.)

5. Cancel the diagnostic assist function by either turning off the audio unit power or by turning the ignition switch to the LOCK position.

Center Panel Specification Inspection

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

2. Turn the audio unit power to ON.

3. Tune in the radio.

4. While pressing the POWER/VOLUME switch, simultaneously press the PRESET switch 6 for 0.2 s or more.

With RDS (radio data system)

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Without RDS (radio data system)

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5. Inspect according to the following table:

Inspection | Display | Action
--- | --- | ---
• Launch the center panel specification inspection mode. • Is there a match to the destination? | P—01(ID)—00(code) | Yes | The center panel is normal.
No | Replace the center panel. (See CENTER PANEL UNIT REMOVAL/INSTALLATION.) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY.)

ID | Specification | Code | Destination
--- | --- | --- | ---
01 | MX-5 | 00 | Japan
01 | Australia
02 | 4A region (With AM frequency pitch: 9KHz pitch)
03 | USA
04 | Europe (With DIS)
05 | Europe (Without DIS)
06 | 4A region (With AM frequency pitch: 5KHz pitch (with DIS))
07 | 4A region (With AM frequency pitch: 5KHz pitch (without DIS))

6. Cancel the diagnostic assist function by either turning off the audio unit power or by turning the ignition switch to the LOCK position.

Audio Amplifier Specification Inspection

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

2. While pressing the POWER/VOLUME switch, simultaneously press the SEEK/TRACK switch (down) for 3 s or more.

With RDS (radio data system)

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Without RDS (radio data system)

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3. Inspect according to the following table:

Inspection | Display | Action
--- | --- | ---
• Launch the audio amplifier specification inspection mode. • Verify the audio amplifier specification. • Dose the audio amplifier specification correspond. | Without Bose® • N (Normal) With Bose® • L (Line out) | Yes | System is okay.
No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION.) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY.)

4. Cancel the diagnostic assist function by either turning off the audio unit power or by turning the ignition switch to the LOCK position.

Audio Amplifier (With Bose®) Identify Inspection

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

2. Turn the audio unit power to ON.

3. While pressing the POWER/VOLUME switch, simultaneously press the AUTO-M switch and RPT/PRESET switch 4 for 3 s or more.

With RDS (radio data system)

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Without RDS (radio data system)

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4. Inspect according to the following table:

Inspection | Display | Action
--- | --- | ---
• Launch the audio amplifier (With Bose®) identify inspection mode. • Dose the audio amplifier specification correspond. | With normal seat • The rear speaker sounds. With leather seat • The door speaker sounds. | Yes | Audio amplifier is okay.
No | Replace the audio amplifier. (See AUDIO AMPLIFIER REMOVAL/INSTALLATION.)

5. Cancel the diagnostic assist function by either turning off the audio unit power or by turning the ignition switch to the LOCK position.