Mazda Protege 5. Manual - part 305

ON-BOARD DIAGNOSTIC [AUDIO]

09–02B–14

DIAGNOSTIC ASSIST FUNCTION

A3U090266900W26

Structural View
Switch location

LCD inspection

1. With audio on, first press the POWER button and hold it, then press the SEEK button (upper) for 

approximately 1 second.

2. Inspect the LCD according to the following table:

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

Z3U0920W004

1

FM1/2 button

2

AM button

3

CD button

4

MD/TAPE button

5

CLOCK button

6

SEEK button (upper)

7

SEEK button (lower)

8

POWER/VOL button

9

Preset button “1”

10

Preset button “2”

11

Preset button “3”

12

Preset button “4”

13

Preset button “5”

14

Preset button “6”

15

AUDIO CONT/TURN button

16

SCAN button

17

AUTO-M button

18

LOAD button (CD changer)

19

EJECT button (CD player and CD changer)

Inspection

Display

Action

Start LCD inspection mode.

Characters displayed in LCD 
are not truncated or faint.

LCD is okay.

Other than above.

Replace base unit.

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ON-BOARD DIAGNOSTIC [AUDIO]

09–02B–15

09–02B

Button inspection

1. With audio on, first press the POWER button and hold it, then press the CLOCK button for approximately 1 

second.

2. Inspect the button according to the following table:

Note

•

The button inspection mode is designed for base unit button. The following lower module button cannot be 
inspected in this mode. (A buzz will not sound.)
— Cassete deck: DOLBY button, EJECT button
— MD player: DISP button, EJECT button

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

Speaker inspection

1. With audio on, first press the POWER button and hold it, then press the AUTO-M button for approximately 1 

second.

2. Inspect the speaker according to the following table:

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 audio on and at radio mode, first press the POWER button and hold it, then press the preset button “2” for 

approximately 1 second.

2. Inspect the radio reception condition according to the following table:

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

End Of Sie

Inspection

Display

Action

•

Start button inspection 
mode.

•

Press the all buttons.

—

Buzzer sounds.

Button is okay.

Buzzer does not sound.

Replace base unit.

Inspection

Display

Action

•

Start speaker inspection 
mode.

•

Does each speaker 
output sound in the 
following order?
1. Left front door speaker
2. Right front door 

speaker

3. Right rear package 

speaker (4SD) or rear 
door speaker (5HB)

4. Left rear package 

speaker (4SD) or rear 
door speaker (5HB)

—

Yes

Speakers and wiring harness between base 
unit and speakers are okay.

No

Inspect the following parts.

•

Malfunctioning speaker

•

Wiring harness between base unit and 
malfunctioning speaker

Inspection

Display

Action

Start radio reception 
condition inspection mode.

Antenna, antenna feeder, and base unit are okay.

Change frequency (channel) and inspect again.

Inspect antenna and antenna feeder.

•

If either one of them is not okay, replace malfunctioning 
part.

•

If both are okay, replace base unit.

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SYMPTOM TROUBLESHOOTING 

09–03–1

09–03

09–03

SYMPTOM TROUBLESHOOTING

KEYLESS ENTRY SYSTEM 

WIRING DIAGRAM . . . . . . . . . . . . . . . .  09–03–1

FOREWORD . . . . . . . . . . . . . . . . . . . . . .  09–03–1
KEYLESS ENTRY SYSTEM 

CHECK SHEET . . . . . . . . . . . . . . . . . . .  09–03–2

KEYLESS ENTRY SYSTEM 

PREINSPECTION . . . . . . . . . . . . . . . . .  09–03–3

TROUBLESHOOTING INDEX . . . . . . . . . 09–03–3
NO.1 ONE OR MORE ON-BOARD DIAGNOSTIC 

FUNCTIONS INOPERATIVE  . . . . . . . . . 09–03–4

NO.2 ALL ON-BOARD DIAGNOSTIC 

FUNCTIONS INOPERATIVE  . . . . . . . . . 09–03–6

NO.3 TRANSMITTER ID CODE CANNOT 

BE REPROGRAMMED  . . . . . . . . . . . . . 09–03–7

End of Toc

KEYLESS ENTRY SYSTEM WIRING DIAGRAM

A3U090369000W01

End Of Sie

FOREWORD

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•

Go to symptom troubleshooting after identifying 
the specific malfunction by performing a keyless 
entry system preliminary inspection.

End Of Sie

A3U0903W001

ZLU0903W001

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SYMPTOM TROUBLESHOOTING 

09–03–2

KEYLESS ENTRY SYSTEM CHECK SHEET

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Note

•

Use the sheet below as a customer interview sheet when accepting a vehicle for service.

•

If the symptom is “Power door lock system does not operate with transmitter at all”, find out how the 
customer uses the keyless entry system by following the check sheet below.

End Of Sie

Z3U0903W003

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