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Self-diagnostic Function

Malfunction detection function

• The malfunction detection function detects malfunctions occurring in the Bluetooth system (hands-free telephone (HF/TEL) system).

Memory function

• The memory function converts a malfunction detected by the malfunction detection function to a DTC and stores it. The error currently occurring is stored as a present malfunction.Up to three DTCs (with audio unit), or six (with car-navigation unit) can be stored as a present malfunction.The error that has previously occurred is stored as a past malfunction.Up to three DTCs (with audio unit), or six (with car-navigation unit) can be stored as a past malfunction. The DTCs, together with the number of times the ignition switch has been turned off after the occurrence of an error (maximum of 255 times), are stored as a past malfunction.

Display function

Without Using Mazda Modular Diagnostic System (M-MDS) (On-board Diagnostic Test Mode)

• To display DTCs on the multi 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 and numbers:

With audio unit

― Malfunction type

am3uun00000960

― Device code

― Error code

With car-navigation unit (without integrated multi information display)

• Error history display screen

― Error items

am6zzn00000912

― Current malfunction

― Number of times the ignition switch has been turned off after the occurrence of an error

― Detail Switch

• Detail display screen

― Device code

am6zzn00000913

― Error code

― Check content

― Number of times present/past malfunction has occurred

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, Bluetooth system (hands-free telephone (HF/TEL system), and the SIRIUS satellite radio system is initiated. A maximum of 10 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.

am3uun00000961

DTC table

Diagnostic Assist Function

With audio unit

• The connection condition and specification of the Bluetooth system (hands-free telephone (HF/TEL) system) related parts can be verified by displaying them in the multi information display. The password for the Bluetooth system (hands-free telephone (HF/TEL) system), which is set by the user, can also be reset. Refer to the Workshop Manual for the diagnostic assist function activation procedure.

Software version verification

• Displays the software version on the multi information display.

acxuun00000976

Connection condition verification

• Displays the connection status on the multi information display and examines the Bluetooth system-related unit, wiring harness, and connector.

am3uun00000963

Password reset

• Operate the switch and reset the password.

acxuun00000977

With car-navigation unit (without integrated multi information display)

• Input a diagnostic assist code and display the unit’s operation conditions, or force the operation to examine the integrity of functions (parts).

• For start-up methods of each mode, refer to the Workshop Manual.

Diagnostic assist code table