ON-BOARD DIAGNOSTIC [AUDIO AMPLIFIER]

id0920001101a3

Outline

• The audio amplifier has an on-board diagnostic function to facilitate system diagnosis.

Function

• The on-board diagnostic function consists of the following functions: A malfunction detection function, which detects overall malfunctions in the audio amplifier-related parts; a memory function, which stores detected DTCs; a display function, which indicates system malfunctions via DTC display.

On-board Diagnostic Function

Malfunction detection function

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

• If a malfunction occurs, the start stop unit records the malfunction as a DTC. A recorded DTC can be read by the Mazda Modular Diagnostic System (M-MDS).

DTC table

× :Applicable

— :Not applicable

DTC No.

Warning/indicator light

Description

Fail-safe function

Drive cycle

Self test type^*1

Memory function

U0001:88

—

Module communication error (HS-CAN)

—

—

C, D

×

U2300:54

—

Configuration error (data not received)

—

—

C, D

×

U2300:56

—

Configuration error (not configured)

—

—

C, D

×

U2300:64

—

Configuration error (error value read)

—

—

C, D

×

U3000:49

—

Audio unit internal malfunction

—

—

C, D

×

U3003:16

—

Voltage decrease input from battery

—

—

C, D

×

U3003:17

—

Audio amplifier high power supply voltage input

—

—

C, D

×

DTC No.	Warning/indicator light	Description	Fail-safe function	Drive cycle	Self test type^*1	Memory function
U0001:88	—	Module communication error (HS-CAN)	—	—	C, D	×
U2300:54	—	Configuration error (data not received)	—	—	C, D	×
U2300:56	—	Configuration error (not configured)	—	—	C, D	×
U2300:64	—	Configuration error (error value read)	—	—	C, D	×
U3000:49	—	Audio unit internal malfunction	—	—	C, D	×
U3003:16	—	Voltage decrease input from battery	—	—	C, D	×
U3003:17	—	Audio amplifier high power supply voltage input	—	—	C, D	×

*1 :C: CMDTC self test, D: ODDTC self test

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.

am6zzn00002837

Status byte for DTC

• The status byte is the two digits (two digits after hyphen (-)) after the seven-digit DTC.

ac5wzn00002017

• The status byte is a code which indicates the pending code, current/past malfunction status, or warning illumination status.

• The status byte can be read by performing a CMDTC self-test using the Mazda Modular Diagnostic System (M-MDS).

• For details on the status byte, refer to the explanation on the M-MDS when reading the DTC.

Active Command Modes Function

• The active command modes are shown below.

Simulation item

Unit/Operation

Data contents

Output part name

EHE

On/Off

• Off: Cancel the active engine sound function.

• On: Operate the active engine sound function.

Audio amplifier