ON-BOARD DIAGNOSTIC [AUDIO AMPLIFIER (WITH CENTER DISPLAY)]
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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:
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― 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
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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
|
Warning/indicator light
|
Description
|
Fail-safe
|
Drive cycle
|
Self-test type*1
|
Memory function
|
|
U0001:88
|
—
|
Module communication error (HS-CAN)
|
—
|
—
|
C
|
×
|
|
U0100:00
|
—
|
Communication error with PCM
|
—
|
—
|
C
|
×
|
|
U0155:00
|
—
|
Communication error with instrument cluster
|
—
|
—
|
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.
Status byte for DTC
• The two digits (two digits after hyphen (-)) after the seven-digit DTC.
• 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, refer to the explanation on the M-MDS when reading the DTC.
