Mazda 6. Manual — part 355
ON-BOARD DIAGNOSTIC [AUDIO]
T–167
T
Diagnostic procedure
End Of Sie
DTC 09:ER20
A6E817566900W06
Diagnostic procedure
INSPECTION
ACTION
INSPECT BASE UNIT
• Clear DTC.
• Turn on radio and operate it for 3 seconds or more.
• Start on-board diagnostic test mode.
• Is DTC 09:Er22 displayed?
Yes
Replace base unit.
No
Troubleshooting completed.
DTC 09:Er20
Power supply circuit of base unit
DETECTION
CONDITION
• Voltage detected at base unit terminals 1B and 1R is less than 8.5 V, or more than 16 V (must not be
16V).
POSSIBLE
CAUSE
• Weak battery
• Malfunction in wiring harness between battery and base unit
STEP
INSPECTION
ACTION
1
INSPECT FUSE
• Remove MIRROR 5 A fuse and ROOM 15 A
fuse.
• Inspect MIRROR 5 A fuse and ROOM 15 A
fuse.
• Are fuses okay?
Yes
Go to next step.
No
Replace fuse.
2
INSPECT BATTERY
• Measure battery voltage.
• Is voltage 8.5 V —16 V?
Yes
Go to next step.
No
Battery is weak.
• Inspect charge/discharge system.
3
INSPECT WIRING HARNESS BETWEEN
BATTERY AND FUSE BLOCK
• Turn ignition switch to ACC position.
• Measure voltage at fuse block connector
(JB-01) terminals B and fuse block connector
(JB-02) terminals D.
• voltage 8.5 V —16 V?
Yes
Go to next step.
No
Repair wiring harness between battery and fuse block.
4
INSPECT WIRING HARNESS BETWEEN
FUSE BLOCK AND BASE UNIT
• Install MIRROR 5 A fuse and ROOM 15 A
fuse.
• Measure voltage at base unit connector
terminals 1B and 1R.
• Is voltage 8.5 V —16 V?
Yes
Go to next step.
No
Repair wiring harness between fuse block and base unit.
5
INSPECT BASE UNIT
• Clear DTC.
• Turn ignition switch to ACC or ON position
and hold for 30 seconds or more.
• Start on-board diagnostic test mode.
• Is DTC 09:Er20 displayed?
Yes
Replace base unit.
No
Troubleshooting completed.
T–168
ON-BOARD DIAGNOSTIC [AUDIO]
End Of Sie
DTC 00:ER10
A6E817566900W07
Diagnostic procedure
End Of Sie
DTC 03:ER10
A6E817566900W08
Diagnostic procedure
End Of Sie
DTC 00:Er10
Cassette deck—base unit communication line
DETECTION
CONDITION
• Base unit detects communication error with cassette deck.
POSSIBLE
CAUSE
• Malfunction of connectors between base unit and cassette deck
• Cassette deck malfunction
• Base unit malfunction
STEP
INSPECTION
ACTION
1
INSPECT CONNECTOR
• Remove cassette deck and inspect
connector for the following.
— Deformation of pin
— Poor connection of female terminal
— Pinching of foreign material
• Is connector okay?
Yes
Go to next step.
No
Repair connector, then go to next step.
2
VERIFY THAT CASSETTE DECK IS
INSTALLED WITH BASE UNIT
• Install cassette deck and verify its installation
condition.
• Is cassette deck securely installed?
Yes
Go to next step.
No
Securely install cassette deck, then go to next step.
3
INSPECT CASSETTE DECK
• Clear DTC.
• Turn ignition switch to ACC or ON position
and hold for 3 seconds or more.
• Start on-board diagnostic test mode.
• Is DTC 00:Er10 displayed?
Yes
Replace base unit and cassette deck.
No
Troubleshooting completed.
DTC 03:Er10
CD player—base unit communication line
DETECTION
CONDITION
• Base unit detects communication error with CD player.
POSSIBLE
CAUSE
• Malfunction of connectors between base unit and CD player
• CD player malfunction
• Base unit malfunction
STEP
INSPECTION
ACTION
1
INSPECT CONNECTOR
• Remove CD player and inspect connector for
the following.
— Deformation of pin
— Poor connection of female terminal
— Pinching of foreign material
• Is connector okay?
Yes
Go to next step.
No
Repair connector, then go to next step.
2
VERIFY THAT CD PLAYER IS INSTALLED
WITH BASE UNIT
• Install CD player and verify its installation
condition.
• Is CD player securely installed?
Yes
Go to next step.
No
Securely install CD player, then go to next step.
3
INSPECT CD PLAYER
• Clear DTC.
• Turn ignition switch to ACC or ON position
and hold for 3 seconds or more.
• Start on-board diagnostic test mode.
• Is DTC 03:Er10 displayed?
Yes
Replace base unit and CD player.
No
Troubleshooting completed.
ON-BOARD DIAGNOSTIC [AUDIO]
T–169
T
DTC 05:ER10
A6E817566900W09
Diagnostic procedure
End Of Sie
DTC 06:ER10
A6E817566900W10
Diagnostic procedure
End Of Sie
DTC 05:Er10
CD changer (external type)—base unit communication line
DETECTION
CONDITION
• Base unit detects communication error with CD changer (external type).
POSSIBLE
CAUSE
• Malfunction of connectors between base unit and CD changer (external type)
• CD changer (external type) malfunction
• Base unit malfunction
STEP
INSPECTION
ACTION
1
INSPECT CONNECTOR
• Inspect base unit and CD changer (external
type) connectors for connection.
• Are connectors securely connected?
Yes
Go to next step.
No
Reconnect connector, then go to next step.
2
INSPECT WIRING HARNESS BETWEEN CD
CHANGER (EXTERNAL TYPE) AND BASE
UNIT
• Inspect wiring harness between base unit
and CD changer (external type).
• Is wiring harness okay?
Yes
Go to next step.
No
Securely install CD changer (external type), then go to next
step.
3
INSPECT CD CHANGER (EXTERNAL TYPE)
• Clear DTC.
• Turn ignition switch to ACC or ON position
and hold for 3 seconds or more.
• Start on-board diagnostic test mode.
• Is DTC 05:Er10 displayed?
Yes
Replace base unit and CD changer (external type).
No
Troubleshooting completed.
DTC 06:Er10
CD changer (upper module)—base unit communication line
DETECTION
CONDITION
• Base unit detects communication error with CD changer (upper module).
POSSIBLE
CAUSE
• Malfunction of connectors between base unit and CD changer (upper module)
• CD changer (upper module) malfunction
• Base unit malfunction
STEP
INSPECTION
ACTION
1
INSPECT CONNECTOR
• Remove CD changer (upper module) and
inspect connector for the following.
— Deformation of pin
— Poor connection of female terminal
— Pinching of foreign material
• Is connector okay?
Yes
Go to next step.
No
Repair connector, then go to next step.
2
VERIFY THAT CD CHANGER (UPPER
MODULE) IS INSTALLED WITH BASE UNIT
• Install CD changer (upper module) and verify
its installation condition.
• Is CD changer (upper module) securely
installed?
Yes
Go to next step.
No
Securely install CD changer (upper module), then go to
next step.
3
INSPECT CD CHANGER (UPPER MODULE)
• Clear DTC.
• Turn ignition switch to ACC or ON position
and hold for 3 seconds or more.
• Start on-board diagnostic test mode.
• Is DTC 06:Er10 displayed?
Yes
Replace base unit and CD changer (upper module).
No
Troubleshooting completed.
T–170
ON-BOARD DIAGNOSTIC [AUDIO]
DTC 07:ER10
A6E817566900W11
Diagnostic procedure
End Of Sie
DTC 03:ER01
A6E817566900W12
Diagnostic procedure
End Of Sie
DTC 03:ER02
A6E817566900W13
DTC 07:Er10
MD player—base unit communication line
DETECTION
CONDITION
• Base unit detects communication error with MD player.
POSSIBLE
CAUSE
• Malfunction of connectors between base unit and MD player
• MD player malfunction
• Base unit malfunction
STEP
INSPECTION
ACTION
1
INSPECT CONNECTOR
• Remove MD player and inspect connector
for the following.
— Deformation of pin
— Poor connection of female terminal
— Pinching of foreign material
• Is connector okay?
Yes
Go to next step.
No
Repair connector, then go to next step.
2
VERIFY THAT MD PLAYER IS INSTALLED
WITH BASE UNIT
• Install MD player and verify its installation
condition.
• Is MD player securely installed?
Yes
Go to next step.
No
Securely install MD player, then go to next step.
3
INSPECT MD PLAYER
• Clear DTC.
• Turn ignition switch to ACC or ON position
and hold for 3 seconds or more.
• Start on-board diagnostic test mode.
• Is DTC 07:Er10 displayed?
Yes
Replace base unit and MD player.
No
Troubleshooting completed.
DTC 03:Er01
CD player
DETECTION
CONDITION
• CD player cannot implement insert and eject commands.
POSSIBLE
CAUSE
• Defective CD (broken or foreign material stuck/attached)
• CD player malfunction
STEP
INSPECTION
ACTION
1
• Is CD able to be ejected?
Yes
Go to next step.
No
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.
• Insert and eject CD with no defect.
• Start on-board diagnostic test mode.
• Is DTC 03:Er01 displayed?
Yes
Replace CD player.
No
Troubleshooting completed.
DTC 03:Er02
CD player
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 player malfunction
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