ON-BOARD DIAGNOSTIC [AUDIO AMPLIFIER (WITH CENTER DISPLAY)]

id0920zz1101yy


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 audio amplifier-related parts.
•  If a malfunction occurs, the audio amplifier 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

Warning/indicator light

Description

Fail-safe

Drive cycle

Self-test type*1

Memory function
U0001:88
—
Module communication error (HS-CAN)
—
—
C
×
U2300:54
—
Configuration error (data not received)
—
—
C
×
U2300:55
—
Configuration error (not configured)
—
—
C
×
U2300:56
—
Configuration error (Ineffective/ non-interchangeable data read)
—
—
C
×
U2300:64
—
Configuration error (error value read)
—
—
C
×
U3000:49
—
Audio amplifier internal malfunction
—
—
C
×
U3003:16
—
Voltage decrease input from battery
—
—
C
×
U3003:17
—
Audio amplifier high power supply voltage input
—
—
C
×

*1  :C: CMDTC 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.
ac5uun00003043

Status byte for DTC

•  The two digits (two digits after hyphen (-)) after the 7-digit DTC.
ac5uun00003048
•  A code which indicates the pending code, current/past malfunction status, or warning illumination status.
•  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 Mazda Modular Diagnostic System (M-MDS) when reading the DTC.

Detection condition for the applicable DTC

DTC

Description

Detection condition
U0001:88
Module communication error (HS-CAN)
•  Audio amplifier detected the CAN bus communication line (HS-CAN) malfunction continuously for 1 s or more for a continuous 10 times.
U2300:54
Configuration error (data not received)
•  Audio amplifier detects configuration data not record or data error
U2300:55
Configuration error (not configured)
U2300:56
Configuration error (Ineffective/ non-interchangeable data read)
U2300:64
Configuration error (error value read)
U3000:49
Audio amplifier internal malfunction
•  Audio amplifier internal malfunction detected
U3003:16
Voltage decrease input from battery
•  With the ignition switched to ACC or ON (engine off or on), the audio amplifier detects voltage from the battery of 9.0 ± 0.8 V or less for 5 s or more.
U3003:17
Audio amplifier high power supply voltage input
•  Larger value than audio amplifier power supply circuit voltage of 16.0 ± 0.8 V or more is detected for 5 s or more with ignition switched ACC or ON (engine off or on)