Mazda 6. Manual - part 356

ON-BOARD DIAGNOSTIC [AUDIO] 

T–171

T

Diagnostic procedure

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Diagnostic procedure

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Diagnostic procedure

STEP

INSPECTION

ACTION

1

VERIFY WHETHER MALFUNCTION IS IN CD 
PLAYER OR CD

• Play CD and select other song (change 

tracks).

• Does CD player change tracks?

Yes

Go to Step 3.

No

Not able to change particular 
tracks.

Go to next step.

Not able to change any 
tracks.

Change CD and perform 
track-change again.

• If CD player changes 

tracks, then go to Step 3.

• If not, replace CD player.

2

INSPECT CD

• Inspect condition of CD where error has 

occurred.

• Is CD okay?

Yes

Go to next step.

No

Repair (remove foreign material) or replace CD, then go to 
next step.

3

INSPECT CD PLAYER

• Clear DTC.

• Play CD and select other song (change 

tracks).

• Start on-board diagnostic test mode.

• Is DTC 03:Er02 displayed?

Yes

Replace CD player.

No

Troubleshooting completed.

DTC 03:Er07

CD player

DETECTION 

CONDITION

Note

• When error occurs, error message “CHECK CD” is displayed in the LCD.

• Base unit detects CD reading error.

POSSIBLE 

CAUSE

• Defective CD (scratches or dirt)

• CD player malfunction

STEP

INSPECTION

ACTION

1

INSPECT CD

• Inspect condition of CD where error has 

occurred.

• Is CD okay?

Yes

Go to next step.

No

Repair (remove foreign material) or replace CD, then go to 
next step.

2

INSPECT CD PLAYER

• Clear DTC.

• Insert and play CD with no defect.

• Start on-board diagnostic test mode.

• Is DTC 03:Er07 displayed?

Yes

Replace CD player.

No

Troubleshooting completed.

DTC 00:Er01

Cassette deck

DETECTION 

CONDITION

• Cassette deck cannot implement insert and eject commands.

POSSIBLE 

CAUSE

• Defective cassette tape (deformation, broken, or foreign material stuck/attached)

• Cassette deck malfunction

STEP

INSPECTION

ACTION

1

• Is cassette tape able to be ejected?

Yes

Go to next step.

No

Replace cassette deck.

2

INSPECT CASSETTE TAPE

• Inspect condition of cassette tape where 

error has occurred.

• Is cassette tape okay?

Yes

Go to next step.

No

Repair (remove foreign material) or replace cassette tape, 
then go to next step.

T–172

ON-BOARD DIAGNOSTIC [AUDIO] 

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Diagnostic procedure

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Diagnostic procedure

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DTC 05:ER01

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3

INSPECT CASSETTE DECK

• Clear DTC.

• Insert and eject cassette tape with no defect.

• Start on-board diagnostic test mode.

• Is DTC 00:Er01 displayed?

Yes

Replace cassette deck.

No

Troubleshooting completed.

STEP

INSPECTION

ACTION

DTC 00:Er03

Cassette deck

DETECTION 

CONDITION

• Base unit detects that reel built into cassette deck does not operate.

POSSIBLE 

CAUSE

• Defective cassette tape (tape slack, pinched tape in internal cassette deck)

• Cassette deck malfunction

STEP

INSPECTION

ACTION

1

INSPECT CASSETTE TAPE

• Inspect condition of cassette tape where 

error has occurred.

• Is cassette tape okay?

Yes

Go to next step.

No

Repair (remove tape slack or repair pinched tape) or 
replace cassette tape, then go to next step.

2

INSPECT CASSETTE DECK

• Clear DTC.

• Insert cassette tape with no defect.

• Play cassette tape for 20 seconds or more.

• Start on-board diagnostic test mode.

• Is DTC 00:Er03 displayed?

Yes

Replace cassette deck.

No

Troubleshooting completed.

DTC 00:Er04

Cassette tape

DETECTION 

CONDITION

Note

• When error occurs, error message “CHECK TAPE” is displayed in the LCD.

• Cassette tape is worn out.

POSSIBLE 

CAUSE

• Tape wear

• Cassette deck malfunction

STEP

INSPECTION

ACTION

1

INSPECT CASSETTE TAPE

• Inspect condition of cassette tape where 

error has occurred.

• Is cassette tape okay?

Yes

Go to next step.

No

Replace cassette tape, then go to next step.

2

INSPECT CASSETTE DECK

• Clear DTC.

• Insert cassette tape with no defect.

• Play cassette tape for 20 seconds or more.

• Start on-board diagnostic test mode.

• Is DTC 00:Er04 displayed?

Yes

Replace cassette deck.

No

Troubleshooting completed.

DTC 05:Er01

CD changer (external type)

DETECTION 

CONDITION

• Changer function does not operate.

POSSIBLE 

CAUSE

• Defective CD (broken or foreign material)

• Magazine malfunction

• CD changer (external type) malfunction

ON-BOARD DIAGNOSTIC [AUDIO] 

T–173

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Diagnostic procedure

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Diagnostic procedure

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Diagnostic procedure

STEP

INSPECTION

ACTION

1

VERIFY WHETHER MALFUNCTION IS IN CD 
CHANGER OR OTHER PARTS

• Operate changer function.

• Is function okay?

Yes

Go to Step 4.

No

Not able to change particular 
CD.

Go to next step.

Not able to change any CD.

Go to Step 3.

2

INSPECT CD

• Inspect condition of CD where error has 

occurred.

• Is CD okay?

Yes

Go to next step.

No

Repair (remove foreign material) or replace CD, then go to 
next step.

3

INSPECT MAGAZINE

• Inspect magazine.

• Is magazine okay?

Yes

Go to next step.

No

Repair or replace magazine, then go to next step.

4

INSPECT CD CHANGER (EXTERNAL TYPE)

• Clear DTC.

• Operate changer.

• Start on-board diagnostic test mode.

• Is DTC 05:Er01 displayed?

Yes

Replace CD changer (external type).

No

Troubleshooting completed.

DTC 05:Er07

CD changer (external type)

DETECTION 

CONDITION

Note

• When error occurs, error message “CHECK CD” is displayed in the LCD.

• Base unit detects CD reading error.

POSSIBLE 

CAUSE

• Defective CD (scratches or dirt)

• CD changer (external type) malfunction

STEP

INSPECTION

ACTION

1

VERIFY WHETHER MALFUNCTION IS IN CD 
CHANGER OR OTHER PARTS

• Play all CD in magazine.

• Is CD changer able to read them properly?

Yes

Go to Step 3.

No

Not able to change particular 
CD.

Go to next step.

Not able to change any CD.

Go to Step 3.

2

INSPECT CD

• Inspect condition of CD where error has 

occurred.

• Is CD okay?

Yes

Go to next step.

No

Repair (remove foreign material) or replace CD, then go to 
next step.

3

INSPECT CD CHANGER (EXTERNAL TYPE)

• Clear DTC.

• Insert and play CD with no defect.

• Start on-board diagnostic test mode.

• Is DTC 05:Er07 displayed?

Yes

Replace CD changer (external type).

No

Troubleshooting completed.

DTC 06:Er01

CD changer (upper module)

DETECTION 

CONDITION

• CD changer (upper module) cannot implement insert, eject, and disc change commands.

POSSIBLE 

CAUSE

• Defective CD (broken or foreign material stuck/attached)

• CD changer (upper module) malfunction

STEP

INSPECTION

ACTION

1

• Is CD able to be ejected?

Yes

Go to next step.

No

Replace CD changer (upper module).

2

INSPECT CD

• Inspect condition of CD where error has 

occurred.

• Is CD okay?

Yes

Go to next step.

No

Repair (remove foreign material) or replace CD, then go to 
next step.

T–174

ON-BOARD DIAGNOSTIC [AUDIO] 

End Of Sie

DTC 06:ER02

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Diagnostic procedure

End Of Sie

DTC 06:ER07

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Diagnostic procedure

3

INSPECT CD CHANGER (UPPER MODULE)

• Clear DTC.

• Insert and eject CD with no defect.

• Start on-board diagnostic test mode.

• Is DTC 06:Er01 displayed?

Yes

Replace CD changer (upper module).

No

Troubleshooting completed.

STEP

INSPECTION

ACTION

DTC 06:Er02

CD changer (upper module)

DETECTION 

CONDITION

Note

• When error occurs, error message “CHECK CD” is displayed in the LCD.

• Cannot play CD normally or change tracks.

POSSIBLE 

CAUSE

• Defective CD (scratches or dirt)

• CD changer (upper module) malfunction

STEP

INSPECTION

ACTION

1

VERIFY WHETHER MALFUNCTION IS IN CD 
CHANGER (UPPER MODULE) OR CD

• Play all CDs in changer and select other 

song (change tracks).

• Is CD changer able to change tracks?

Yes

Go to Step 3.

No

Not able to change particular 
tracks.

Go to next step.

Not able to change any 
tracks.

Change CD and perform 
track-change again.

• If CD changer changes 

tracks, go to Step 3.

• If not, replace CD 

changer (upper module).

2

INSPECT CD

• Inspect condition of CD where error has 

occurred.

• Is CD okay?

Yes

Go to next step.

No

Repair (remove foreign material) or replace CD, then go to 
next step.

3

INSPECT CD CHANGER (UPPER MODULE)

• Clear DTC.

• Play CD and select other song (change 

tracks).

• Start on-board diagnostic test mode.

• Is DTC 06:Er02 displayed?

Yes

Replace CD changer (upper module).

No

Troubleshooting completed.

DTC 06:Er07

CD changer (upper module)

DETECTION 

CONDITION

Note

• When error occurs, error message “CHECK CD” is displayed in the LCD.

• Base unit detects CD reading error.

POSSIBLE 

CAUSE

• Defective CD (scratches or dirt)

• CD changer (upper module) malfunction

STEP

INSPECTION

ACTION

1

VERIFY WHETHER MALFUNCTION IS IN CD 
CHANGER (UPPER MODULE) OR CD

• Play all CDs in changer.

• Is CD changer able to read them properly?

Yes

Go to Step 3.

No

Not able to read particular 
CD.

Go to next step.

Not able to read any CD.

Go to Step 3.

2

INSPECT CD

• Inspect condition of CD where error has 

occurred.

• Is CD okay?

Yes

Go to next step.

No

Repair (remove foreign material) or replace CD, then go to 
next step.