Mazda CX 7. Manual - part 367

SYMPTOM TROUBLESHOOTING [CD PLAYER/CHANGER]

09-03G–1

09-03G

09-03G SYMPTOM TROUBLESHOOTING [CD PLAYER/
CHANGER]

FOREWORD

[CD PLAYER/CHANGER] . . . . . . . . . . .  09-03G–1

Troubleshooting Index  . . . . . . . . . . . . .  09-03G–1

NO.1 CD PLAYER/CHANGER 

DOES NOT LOAD THE CD OR 
EJECTS THE CD IMMEDIATELY
[CD PLAYER/CHANGER] . . . . . . . . . . .  09-03G–3

NO.2 CD PLAYER/CHANGER 

DOES NOT EJECT THE CD
[CD PLAYER/CHANGER] . . . . . . . . . . .  09-03G–4

NO.3 CD PLAYER/CHANGER 

DOES NOT PLAY THE CD/NO SOUND
[CD PLAYER/CHANGER] . . . . . . . . . . .  09-03G–4

NO.4 SOUND JUMPS

[CD PLAYER/CHANGER] . . . . . . . . . . .  09-03G–5

NO.5 CD PLAYER/CHANGER 

SCRATCHES ON THE CD
[CD PLAYER/CHANGER] . . . . . . . . . . .  09-03G–5

NO.6 DISC CHANGE IS INOPERATIVE

[CD PLAYER/CHANGER] . . . . . . . . . . .  09-03G–6

NO.7 CD PLAYER DOES NOT PLAY 

THE MP3-FORMATTED FILE
[CD PLAYER/CHANGER]  . . . . . . . . . . . 09-03G–6

NO.8 MP3-FORMATTED FILE FOLDER 

SELECTION IS INOPERATIVE/TRACK 
SEARCH IS INOPERATIVE
[CD PLAYER/CHANGER]  . . . . . . . . . . . 09-03G–7

NO.9 CD PLAYER DOES NOT INDICATE 

THE MP3 TITLE TEXT
[CD PLAYER/CHANGER]  . . . . . . . . . . . 09-03G–8

NO.10 CD PLAYER DOES NOT PLAY 

THE AUDIO DATA (CDDA)
[CD PLAYER/CHANGER]  . . . . . . . . . . . 09-03G–9

NO.11 TRACK CHANGE IS 

INOPERATIVE
[CD PLAYER/CHANGER]  . . . . . . . . . . . 09-03G–9

REFERENCE

[CD PLAYER/CHANGER]  . . . . . . . . . . . 09-03G–10

MP3-Formatted File  . . . . . . . . . . . . . . . 09-03G–10

End of Toc

WM: AUDIO UNIT

FOREWORD[CD PLAYER/CHANGER]

id0903e5826000

Troubleshooting Index

No.

Items

Symptom

Possible DTC

1

CD player/changer

CD player/changer does not load the CD or ejects the 
CD immediately

03:Er01, 03:Er10

2

CD player/changer does not eject the CD

03:Er01

3

CD player/changer does not play the CD/No sound

03:Er07, 03:Er10

4

Sound jumps

03:Er02

5

CD player/changer scratches on the CD

03:Er02

6

CD changer

Disc changer is inoperative

— 

7

MP3 applicable

CD player

CD player does not play the MP3-formatted file

— 

8

MP3-formatted file folder selection is inoperative/Track 
search is inoperative

— 

9

CD player does not indicate the MP3 title text

— 

10

CD player does not play the audio data (CDDA)

— 

11

CD player/changer

Track change is inoperative

03:Er02

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SYMPTOM TROUBLESHOOTING [CD PLAYER/CHANGER]

09-03G–2

End Of Sie

CD pla

y

er/changer

2

3

4

5

6

7

8

9

10

11

1

CD pla

y

er/changer dose not load the CD or ejects 

the CD immediately

CD pla

y

er/changer dose not eject the CD

CD pla

y

er/changer dose not pla

y the CD/No sound

Sound jumps

CD pla

y

er/changer scr

atches on the CD

Disc change is inoper

ativ

e

CD pla

y

er dose not pla

y the MP3-f

or

matted file

MP3-f

or

matted file f

older selection is inoper

ativ

e/

T

rac

k search is inoper

ativ

e

CD pla

y

er dose not indicate the MP3 title te

xt

CD pla

y

er dose not pla

y the audio data (COD

A)

T

rac

k change is inoper

ativ

e

CD changer

CD player/changer

MP3 applicable

CD player

CD is inserted upside down

Audio unit is malfunctioning

Defective CD (egg., cracked, badly bent, rough edges, scratch, dirty CD, condensation)

Non-conventional discs (e.g., 8 cm (3 in) CD, 8 cm (3 in) disc adapter, 
heart-shaped disc, octagonal disc)

Poor connection of audio unit connector or terminal (e.g., damaged, bent, pull-out pin, corrosion)

Improper center panel installation

Improper CD cover installation

Improper folder and/or music title in CD-R/RW

The number of characters of folder/music file name in CD-R/RW exceeds 
the maximum number of characters

Improper encode in CD-R/RW

MP3 applicable CD player is malfunctioning

No title input in CD-R/RW

Input title text by 2-bytes characters

Data other than the audio data is in CD-R/RW

Improper audio unit installation (e.g., rattle, loose)

Inadequate tire pressure

Deformed disc is used (e.g., out of specification (thickness), bent disc)

Multiple CDs are inserted into the CD player at the same time

Center panel is malfunctioning

CD-R/RW written format is out of specification

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

Possible factor

Troubleshooting Item

MP3 and other format data are in the CD-R/RW

File extension for MP3-formatted file is incorrect (Correct: ".mp3", Incorrect: e.g., RIFF)

Defective CD-R/RW (e.g., dirty, scratch)

CD-R/RW (MP3 files are all written to RIFF format)

Conflict of ID tag version for CD-R/RW

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X: Applicable

acxuuw00000950

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SYMPTOM TROUBLESHOOTING [CD PLAYER/CHANGER]

09-03G–3

09-03G

NO.1 CD PLAYER/CHANGER DOES NOT LOAD THE CD OR EJECTS THE CD IMMEDIATELY[CD PLAYER/
CHANGER]

id0903e5826100

Diagnostic procedure

End Of Sie

1

CD player/changer does not load the CD or ejects the CD immediately
Possible DTC: 03:Er01, 03:Er10

Troubleshooting hints

• CD is inserted upside down

• Audio units is malfunctioning

• Defective CD (e.g., cracked, badly bent, rough edges, scratch, dirty CD, condensation)

• Non-conventional discs (e.g., 8 cm (3 in) CD, 8 cm (3 in) disc adapter, heart-shaped disc, octagonal disc)

• Poor connection of audio unit connector or terminal (e.g., damaged, bent, pulled-out pin, corrosion)

• Deformed disc is used (e.g., out of specification (thickness), bent disc)

STEP

INSPECTION

ACTION

1

• Is CD inserted properly, label-side up?

Yes

Go to the next step.

No

Explain to the customer that CD should be inserted into the 
slot, label-side up.

2

• Replace with a CD known to be good.

• Does the CD player/changer load the CD?

Yes

Go to the next step.

No

Replace the audio unit.

3

• Visually inspect the CD.

— Is there any dirt, scratch or deformation 

on the CD?

— Is the CD a non-conventional disc?

Yes

Explain to the customer that the defective CD or non-
conventional disc cannot be use.

No

Go to the next step.

4

• Turn the ignition switch to the LOCK position.

• Inspect the connection of the audio unit 

connector (24-pin).

• Inspect both audio unit connector and wiring 

harness-side connector for poor connection. 
(such as damaged/bent/pulled-out pins, 
corrosion)

• All the pins and connector normal?

Yes

Replace the audio unit.

No

If the audio unit connector/pin is wrong:

• Replace the audio unit.

If the wiring harness-side connector/pin is wrong:

• Repair or replace the pins and/or the connector.

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SYMPTOM TROUBLESHOOTING [CD PLAYER/CHANGER]

09-03G–4

NO.2 CD PLAYER/CHANGER DOES NOT EJECT THE CD[CD PLAYER/CHANGER]

id0903e5826200

Diagnostic procedure

End Of Sie

NO.3 CD PLAYER/CHANGER DOES NOT PLAY THE CD/NO SOUND[CD PLAYER/CHANGER]

id0903e5806100

Diagnostic procedure

2

CD player/changer does not eject the CD
Possible DTC:03:Er01

Troubleshooting hints

• Audio units is malfunctioning

• Defective CD. (e.g., cracked, badly bent, rough edges, scratch, dirty CD, condensation)

• Non-conventional discs (e.g., 8 cm (3 in) CD, 8 cm (3 in) disc adapter, heart-shaped disc, octagonal disc)

• Poor connection of audio unit connector or terminal (e.g., damaged, bent, pulled-out pin, corrosion)

• Improper center panel installation

• Improper CD cover installation

• Deformed disc is used (e.g., out of specification (thickness), bent disc).

• Multiple CDs are inserted into the CD player at the same time

Note

• The CD may be malfunctioning if the CD player/changer does not eject the certain CD only. Inspect the CD player/

changer operation using the CD known to be good.

STEP

INSPECTION

ACTION

1

• Inspect the operation of the audio system 

other than CD player/changer (e.g. Radio).

• Does other audio system operate?

Yes

Go to Step 3.

No

Go to the next step.

2

• Turn the ignition switch to the LOCK position.

• Inspect the connection of the audio unit 

connector (24-pin).

• Inspect both audio unit connector and wiring 

harness-side connector for poor connection. 
(such as damaged/bent/pulled-out pins, 
corrosion)

• All the pins and connector normal?

Yes

Go to the next step.

No

If the audio unit connector/pin is wrong:

• Replace the audio unit.

If the wiring harness-side connector/pin is wrong:

• Repair or replace the pins and/or the connector.

3

• Eject the CD.

• Is the CD ejected from the CD player/

changer?

Yes

Go to the next step.

No

Inspect the center panel and CD cover installation. Securely 
install the center panel and/or CD cover as necessary.

4

• Insert the CD into the CD player/changer.

• Does the CD insert into the CD player/

changer smoothly?

Yes

Replace the audio unit.

No

Install the center panel and/or CD cover properly, then go to 
the next step.

5

• Is the CD ejected from the CD player/

changer?

Yes

Troubleshooting completed.
Explain repairs to the customers.

No

Replace the audio unit.

3

CD player/changer does not play the CD/No sound
Possible DTC:03:Er07, 03:Er10

Troubleshooting hints

• CD is inserted upside down

• Audio units is malfunctioning

• Defective CD (e.g., cracked, badly bent, rough edges, scratch, dirty CD, condensation)

• Non-conventional discs (e.g., 8 cm (3 in) CD, 8 cm (3 in) disc adapter, heart-shaped disc, octagonal disc)

STEP

INSPECTION

ACTION

1

• Turn the radio ON and inspect that there is 

sound.

• Is there sound?

Note

• Check for the volume dial position.

Yes

Go to the next step.

No

Go to the symptom troubleshooting No.3 (Audio system).

2

• Was CD inserted properly, label-side up?

Yes

Go to the next step.

No

Explain to the customer that CD should be inserted into the 
slot, label-side up.

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