ON-BOARD DIAGNOSTIC SYSTEM FUNCTION [AUDIO SYSTEM]

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Self-diagnostic Function


Malfunction detection function

•  Detects overall malfunctions in the audio system-related parts.


Memory function

•  If the audio unit detects a malfunction in the audio system, a maximum of 3 DTCs are recorded in the audio unit. If 3 DTCs have already been stored and an additional malfunction is detected, the oldest DTC of the 3 already stored is cleared and it is replaced with the DTC for the most current malfunction.


Display function

Without Using Mazda Modular Diagnostic System (M-MDS) (On-board Diagnostic Test Mode)
Without display
•  To display DTCs on the information display that have been recorded in the memory function, activate the on-board diagnostic function by operating the audio unit. Refer to the Workshop Manual for the activation procedure of the on-board diagnostic function.
The DTC consists of the following codes:
―  Supplier code (indicates manufacturer)
am3uun00000952
―  Device code (indicates malfunctioning part)
―  Error code (indicates malfunction description)
With display
•  To display DTCs on the LCD display that have been recorded in the memory function, activate the on-board diagnostic function by operating the audio unit. Refer to the Workshop Manual for the activation procedure of the on-board diagnostic function.
The DTC consists of the following codes:
―  Manufacture code (indicates manufacturer)
am6xun00000857
―  Device code (indicates malfunctioning part)
―  Error code (indicates malfunction description)

Supplier code

Supplier name
01
SANYO Automedia
02
Panasonic
03
Clarion
04
Pioneer
05
VISTEON

Device code

Parts name
03
CD player
09
Audio unit
16
CAN system
21
Audio panel
22
MP3/WMA (windows media audio) applicable CD changer

Error code

Malfunction description
01
Internal mechanism error
02
Servo mechanism error
07
Disc reading error
09
Blank media
10
BUS line (communication line) error
12
CAN line (communication line) error
19
Communication line error
20
Insufficient power supply
21
Amplifier related circuit
22
Tuner error

With Using Mazda Modular Diagnostic System (M-MDS)
•  When a DTC inspection is performed using the Mazda modular diagnostic system (M-MDS), the malfunction diagnostics for the audio system is initiated. A maximum of 5 DTCs detected by the malfunction diagnostics are displayed. Refer the Workshop Manual for the DTC inspection procedure.
―  DTC 7-digit code definition
―  When related systems or components have failed, the CM stores the DTC of the malfunctioning part in the CM memory, and allows for the retrieval of the store data using scanning tool when necessary. The DTCs are indicated using seven digits. Each digit indicates the following.
ac9wzn00000456

DTC table

DTC

Detection

Mazda Modular Diagnostic System (M-MDS) display*

On-board diagnostic test mode

Without display

With display

Device code

Error code
B1188:64
03:Er07
22
07
Audio unit internal malfunction
B1D19:71
03:Er02
22
02
Audio unit internal malfunction
B1D19:79
03:Er01
22
01
Audio unit internal malfunction
B1D19:96
03:Er10
22
10
Audio unit internal malfunction
U0010:88
16:Er12
16
12
CAN system communication error
U0156:00
—
—
—
Communication error to information display
U3000:09
09:Er21
09
21
Audio unit internal malfunction or audio unit protection function operates
U3000:16
09:Er20
09
20
Audio unit power supply voltage is low
—
09:Er22
—
—
Audio unit internal malfunction
—
21:Er19
21
19
Audio unit internal malfunction
—
No Err
—
—
DTC is not recorded.

*  :Malfunction diagnosis using the Mazda modular diagnostic system (M-MDS) is performed only on vehicles with the audio unit display and Bose®.


Diagnostic Assist Function

•  The audio system related parts are forcibly operated to enable verification of the connection condition and operation status of the audio system related parts. In addition, the specifications for the audio system related parts are displayed in the information display or LCD display to enable their verification. Refer to the Workshop Manual for the diagnostic assist function activation procedure.

Display Inspection (With display only)

•  Illuminates all the color on the display and checks if they are not truncated or faint.
am6xun00000848


Switch inspection

•  Activates a buzzer sound when a switch is operated and examines each of the switches.
am6xun00000849


Speaker inspection

•  Verifies that the speakers output sound in the following order and examines the speakers and wiring harness between the audio unit and speaker.
Without Bose®
―   Front door speaker (LH) and tweeter (LH)
―   Front door speaker (RH) and tweeter (RH))
―   Rear door speaker (RH)
―   Rear door speaker (LH)
With Bose®
―   Front door speaker (LH)
―   Front speaker (LH)
―   Center speaker
―   Front door speaker (RH)
―   Front speaker (RH)
―   Rear door speaker (RH)
―   Rear speaker (RH)
―   Bass-box
―   Rear speaker (LH)
―   Rear door speaker (LH)


Radio reception condition inspection

•  The diagnostic assist function displays the radio reception condition in 11 levels (0—10) to assist in determining the condition of the antenna, antenna feeders, and audio unit (tuner).

With display

am6xun00000853

Without display

ac9wzn00000457


Antenna control condition inspection

•  The diagnostic assist function displays the output state of the antenna amplifier power supply to determine the condition of the antenna amplifier, audio unit, and wiring harness between the audio unit and antenna amplifier.

With display

am6xun00000854

Without display

am3uun00000956
•  The diagnostic assist function displays the output state of the antenna amplifier power supply to determine the condition of the antenna amplifier, audio unit, and wiring harness between the audio unit and antenna amplifier.


Audio amplifier control condition inspection (With display only)

•  The diagnostic assist function displays the output state of the audio amplifier operating signal to determine the condition of the audio amplifier, audio unit, and wiring harness between the audio unit and audio amplifier.
am6xun00000855


Dial inspection (With display only)

•  Displays the dial switch operation direction on the LCD display to examine the integrity of the dial.
am3uun00000958


Audio amplifier specification inspection (With display only)

•  Displays the audio amplifier specification on the LCD display to verify its specification.

With display

am6xun00000856

Without display

am3uun00000959


Audio amplifier (with Bose®) identify inspection (With display only)

•  Inspection of the audio amplifier can be performed by operating the following speakers.
With normal seat
―  Rear door speaker
With leather seat
―  Front door speaker