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ON-BOARD DIAGNOSTIC [ENTERTAINMENT SYSTEM (WITHOUT CENTER DISPLAY)]

NOTE:

  • “iPod” is a registered trademark of Apple Inc.

Outline

  • The entertainment system has an on-board diagnostic function and diagnostic assist function to facilitate system diagnosis.

Function

On-board diagnostic function

  • The on-board diagnostic function consists of the following functions:

    • A malfunction detection function, which detects overall malfunctions in the entertainment system-related parts.

    • A memory function, which stores detected DTCs.

    • A display function, which indicates system malfunctions via a DTC display.

    Malfunction detection function

  • Detects a malfunction in the entertainment system.

    Memory function

  • If the audio unit detects a malfunction in the entertainment system, it stores the DTC in the audio unit.

Target

Maximum memory number

Audio unit

3

CD player

3

Bluetooth® unit

0*
*
Because the Bluetooth® unit only displays the currently detected DTC, the memory function is not available.

  • Stores malfunctions detected by the malfunction detection function as DTCs in the audio unit. The detected DTCs are not cleared even if the ignition is switched off or the negative battery cable is disconnected.

  • If the audio unit has already stored the maximum number of DTCs and detects another malfunction, it clears the oldest DTC and stores the new DTC.

    Display Function

  • To display DTCs in the audio unit display that have been recorded in the memory function, activate the on-board diagnostic function by operating the audio unit. Refer to the [DTC INSPECTION [AUDIO UNIT]] in the Workshop Manual for the activation procedure of the on-board diagnostic function.

      • The DTCs consist of the following:

    • Supplier code (supplier name)

    • Device code (malfunction location)

    • Error code (malfunction contents)

Supplier code

Supplier name

01

SANYO Automedia

02

Panasonic

03

Clarion

04

Pioneer

05

VISTEON

06

DESAY

Device code

Device name

09

Audio unit

16

CAN system

26

Bluetooth® unit

28

Auxiliary jack/USB port

29

iPod

30

CD player

Error code

Malfunction contents

01

Mechanical malfunction

07

Poor data read-outs

09

No playable File/Track

11

CAN communication time-out

12

CAN line (communication line) error

20

Insufficient power supply

21

Amplifier related circuit

30

Temperature abnormality
DTC table
For Audio Unit×: Applicable—: Not applicable

DTC No.

Warning/indicator light

Description

Fail-safe

Drive cycle

Memory function

16:Er11

—

CAN communication time-out

—

—

×

16:Er12

—

Unit communication error

—

—

×

28:Er09

—

No USB playback function file/track

—

—

×

No Err

—

DTCs are not stored.

—

—

—
For Bluetooth® Unit—: Not applicable

DTC No.

Warning/indicator light

Description

Fail-safe

Drive cycle

Memory function

26:Er81

—

Communication error with Bluetooth® unit

—

—

—

26:Er82

—

Microphone circuit malfunction

—

—

—

26:Er83

—

Microphone circuit malfunction

—

—

—

26:Er84

—

Microphone circuit malfunction

—

—

—

26:Er85

—

Steering switch circuit malfunction

—

—

—

26:Er86

—

Bluetooth® unit internal malfunction

—

—

—

No Err

—

DTCs are not stored.

—

—

—
For CD Player×: Applicable—: Not applicable

DTC No.

Warning/indicator light

Description

Fail-safe

Drive cycle

Memory function

30:Er01

—

CD player mechanism malfunction

—

—

×

30:Er07

—

CD player data read error

—

—

×

30:Er30

—

CD player temperature abnormality

—

—

×

No Err

—

DTCs are not stored.

—

—

—
Detection condition for the applicable DTC
For Audio Unit

DTC No.

Description

Detection condition

16:Er11

CAN communication time-out

  • Time-out occurs in the audio unit CAN signal.

16:Er12

Unit communication error

  • The audio unit cannot receive CAN signal.

28:Er09

No USB playback function file/track

  • When USB device connected, connection error detected.

  • When USB device connected, audio unit internal malfunction detected.

  • When USB device connected, read error detected.
For Bluetooth® Unit

DTC No.

Description

Detection condition

26:Er81

Communication error with Bluetooth® unit

  • The audio unit cannot receive CAN signal from the Bluetooth® unit.

26:Er82

Microphone circuit malfunction

  • Short to power supply detected in microphone input circuit.

26:Er83

Microphone circuit malfunction

  • Short to power ground detected in microphone power supply circuit.

26:Er84

Microphone circuit malfunction

  • Microphone non-connection signal detected continuously.

26:Er85

Steering switch circuit malfunction

  • Steering switch input signal is detected continuously for 2 min or more.

26:Er86

Bluetooth® unit internal malfunction

  • Bluetooth® unit detects the internal malfunction.
For CD Player

DTC No.

Description

Detection condition

30:Er01

CD player mechanism malfunction

  • CD player mechanism malfunction detected.

30:Er07

CD player data read error

  • CD player read error detected.

30:Er30

CD player temperature abnormality

  • Abnormal temperature in CD player is detected.
Diagnostic assist function

  • The entertainment system related parts are forcibly operated to enable verification of the connection condition and operation status of the entertainment system related parts. In addition, the specifications for the entertainment system related parts are displayed in the audio unit display to enable their verification. Refer to [DIAGNOSTIC ASSIST FUNCTION [AUDIO UNIT]] in the workshop manual for the diagnostic assist function activation procedure.

Diagnostic assist function table—: Not applicable

Display

Function

Content

LCD inspection

Displays all characters in the audio unit display.

—

Button inspection

Sounds buzzer when the audio unit button is operated.

—

Speaker inspection

Outputs sound from the speakers in the following order:

    Without driver-side headrest speaker

  • Door speaker (LH) and tweeter (LH)

  • Door speaker (RH) and tweeter (RH)

    With driver-side headrest speaker

  • Door speaker (LH) and tweeter (LH)

  • Door speaker (RH) and tweeter (RH)

  • Driver-side headrest speaker (RH)

  • Driver-side headrest speaker (LH)

Radio reception condition inspection

Displays the radio reception status in the audio unit display.

Antenna control inspection

Displays the power supply output status to the antenna amplifier in the audio unit display.

Dial inspection

Displays the rotation direction of the operated dial switch in the audio unit display.

Audio amplifier specification verification

Displays the audio amplifier specification in the audio unit display.

CD inspection

Displays the result of the CD inspection in the audio unit display.

NOTE:

  • If the CD inspection cannot be performed normally, TEST REJECTED is displayed in the audio unit display and the CD inspection mode stops.

—

Hands-free password clearing

Clears the Hands-free password.

CD part number verification

Displays the CD player part number in the audio unit display.
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Free to use workshop manual for your 2015+ Mk4 'ND' Mazda MX-5

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