Mazda Protege 5. Manual — part 302

ON-BOARD DIAGNOSTIC [AUDIO]

09–02B–2

Identification With Printed Numbers/Label
Base unit

1. To identify the supplier name, compare the

leftmost number of the ID code (4 digits), printed
on the upper right corner of the LCD, with the
table below.

Upper/lower module

1. Remove the audio unit.
2. Verify the supplier name written on the label attached on each module.

Identification With On-board Diagnostic Test Mode

1. Start the on-board diagnostic test mode.
2. Verify the device code and supplier code

displayed in the LCD.

Note

•

When no DTCs are in the memory, device
code and supplier codes will not be
displayed.

End Of Sie

DTC CLEARING PROCEDURE

A3U090266900W03

1. Start the on-board diagnostic test mode.
2. First press the POWER button and hold it, then

press AUDIO CONT button for 2 seconds or
more.

Caution

••••

Before clearing the DTCs, be sure to
enter all of them displayed in the on-
board diagnostic test mode on the Audio
Exchange Order Form.

3. To stop the on-board diagnostic test mode, turn

the ignition switch to the LOCK position.

End Of Sie

Audio ID

number

Supplier name

1

Panasonic

2

Clarion

4

FMS Audio

YLE8175W002

Device code

Part name

00

Cassette deck (lower module)

03

CD player (upper module)

05

CD changer (external type)

06

CD changer (upper module)

07

MD player (lower module)

09

Base unit

Supplier code

Supplier name

1

FMS Audio

2

Panasonic

3

Clarion

Z3U0920W003

1

POWER button

2

AUDIO CONT button

YLE8175W004

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ON-BOARD DIAGNOSTIC [AUDIO]

09–02B–3

09–02B

DTC TABLE

A3U090266900W04

*1,*2

: When an error occurs, the error messages are displayed three times in the order of *1 and *2, respectively.

End Of Sie

DTC 09:ER22

A3U090266900W05

Diagnostic procedure

End Of Sie

Screen display

Malfunction location

Page

DTC

Output signal

09:Er22

—

Base unit (peripheral circuit)

(See 09–02B–3 DTC 09:ER22)

09:Er20

—

Power supply circuit of base unit

(See 09–02B–4 DTC 09:ER20)

00:Er10

—

Cassette deck—base unit communication line

(See 09–02B–5 DTC 00:ER10)

03:Er10

—

CD player—base unit communication line

(See 09–02B–5 DTC 03:ER10)

05:Er10

—

CD changer (external type)—base unit
communication line

(See 09–02B–6 DTC 05:ER10)

06:Er10

—

CD changer (upper module)—base unit
communication line

(See 09–02B–6 DTC 06:ER10)

07:Er10

—

MD player—base unit communication line

(See 09–02B–7 DTC 07:ER10)

03:Er01

—

CD player

(See 09–02B–7 DTC 03:ER01)

03:Er02

CHECK

*1

CD

*2

CD player

(See 09–02B–8 DTC 03:ER02)

03:Er07

CHECK

*1

CD

*2

CD player

(See 09–02B–8 DTC 03:ER07)

00:Er01

—

Cassette deck

(See 09–02B–9 DTC 00:ER01)

00:Er03

—

Cassette deck

(See 09–02B–9 DTC 00:ER03)

00:Er04

CHECK

*1

TAPE

*2

Cassette tape

(See 09–02B–9 DTC 00:ER04)

05:Er01

—

CD changer (external type)

(See 09–02B–10 DTC 05:ER01)

05:Er07

CHECK

*1

CD

*2

CD changer (external type)

(See 09–02B–10 DTC 05:ER07)

06:Er01

—

CD changer (upper module)

(See 09–02B–11 DTC 06:ER01)

06:Er02

CHECK

*1

CD

*2

CD changer (upper module)

(See 09–02B–11 DTC 06:ER02)

06:Er07

CHECK

*1

CD

*2

CD changer (upper module)

(See 09–02B–12 DTC 06:ER07)

07:Er01

—

MD player

(See 09–02B–12 DTC 07:ER01)

07:Er02

CHECK

*1

MD

*2

MD player

(See 09–02B–13 DTC 07:ER02)

07:Er07

CHECK

*1

MD

*2

MD player

(See 09–02B–13 DTC 07:ER07)

no Err

—

No stored DTCs

—

DTC 09:Er22

Base unit (peripheral circuit)

DETECTION

CONDITION

•

Base unit detects malfunction in its inner circuit (related to tuner).

POSSIBLE

CAUSE

•

Base unit malfunction

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.

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ON-BOARD DIAGNOSTIC [AUDIO]

09–02B–4

DTC 09:ER20

A3U090266900W06

Diagnostic procedure

End Of Sie

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 BATTERY

•

Turn headlights ON then OFF to remove surface
charge.

•

Measure battery voltage.

•

Is voltage less than 8.5 V?

Yes

Battery is weak.

•

Inspect charge/discharge system.

No

Go to next step.

2

INSPECT BATTERY

•

Engine running.

•

Measure battery voltage.

•

Is voltage greater than 16 V?

Yes

Battery is overcharging.

•

Inspect charge/discharge system.

No

Go to next step.

3

INSPECT WIRING HARNESS BETWEEN BATTERY
AND FUSE BLOCK

•

Measure voltage at fuse block connector (JB-01)
terminals A and D.

•

Is 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

•

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.

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ON-BOARD DIAGNOSTIC [AUDIO]

09–02B–5

09–02B

DTC 00:ER10

A3U090266900W07

Diagnostic procedure

End Of Sie

DTC 03:ER10

A3U090266900W08

Diagnostic procedure

End Of Sie

DTC 00:Er10

Cassette deck—base unit communication line

DETECTION

CONDITION

•

Base unit detects communication error with cassette deck (lower module).

POSSIBLE

CAUSE

•

Malfunction of connectors between base unit and cassette deck (lower module)

•

Cassette deck (lower module) malfunction

•

Base unit malfunction

STEP

INSPECTION

ACTION

1

INSPECT CONNECTOR

•

Remove cassette deck (lower 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 CASSETTE DECK (LOWER MODULE)
IS INSTALLED WITH BASE UNIT

•

Install cassette deck (lower module) and verify its
installation condition.

•

Is cassette deck securely installed?

Yes

Go to next step.

No

Securely install cassette deck (lower module), then
go to next step.

3

INSPECT CASSETTE DECK (LOWER 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 00:Er10 displayed?

Yes

Replace base unit and cassette deck (lower module).

No

Troubleshooting completed.

DTC 03:Er10

CD player—base unit communication line

DETECTION

CONDITION

•

Base unit detects communication error with CD player (upper module).

POSSIBLE

CAUSE

•

Malfunction of connectors between base unit and CD player (upper module)

•

CD player (upper module) malfunction

•

Base unit malfunction

STEP

INSPECTION

ACTION

1

INSPECT CONNECTOR

•

Remove CD player (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 PLAYER (UPPER MODULE) IS
INSTALLED WITH BASE UNIT

•

Install CD player (upper module) and verify its
installation condition.

•

Is CD player securely installed?

Yes

Go to next step.

No

Securely install CD player (upper module), then go to
next step.

3

INSPECT CD PLAYER (UPPER MODULE)

•

Clear DTC.

•

Turn ignition switch to ACC or ON position and wait
for 3 seconds or more.

•

Start on-board diagnostic test mode.

•

Is DTC 03:Er10 displayed?

Yes

Replace base unit and CD player (upper module).

No

Troubleshooting completed.

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