Mazda 2007 CX-9, Service Highlights

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ENTERTAINMENT
09-20–13
09-20
AUDIOPILOT CONSTRUCTION/OPERATION
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A microphone is installed on the lower panel.
•
The amplifier separates the sound inside the vehicle, measured with a microphone, into music and noise, and
compares the noise and music levels at each frequency. Then, volume compensation is performed for
frequency bands where the noise is determined to interfere with the music.
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ON-BOARD DIAGNOSTIC SYSTEM FUNCTION [AUDIO AMPLIFIER]
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The on-board diagnostic system has a self-diagnostic function to help technicians locate malfunctions.
Self-diagnostic Function
Malfunction detection function
•
The malfunction detection function detects malfunctions occurring in the audio amplifier.
Memory function
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The memory function detects a malfunction, changes it to a DTC, and stores it in the memory.
•
Once a DTC is stored, it can only be cleared by the designated procedure; not by turning the ignition switch to
the LOCK position or disconnecting the negative battery cable. The procedure is mentioned in the Service
Section.
Display function
•
When the on-board diagnostic function has started, DTCs stored by the memory function are output to the
DLC-2.
DTC table
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NOISE
MUSIC
MICROPHONE
AMPLIFIER
OUTPUT TO SPEAKERS
TIME
MUSIC
(SET VOLUME)
NOISE INTERFERENCE AREA
A
A
ANALYSIS
COMPENSATION
VOLUME
NOISE
COMPENSATED
VOLUME
ac9uun00000507
DTC No. Description Detection condition
B2477 Audio amplifier configuration error If there is any malfunction in the configuration data.
3423-1U-06H(09-20).fm 13 ページ ２００６年１１月２１日 火曜日 午後５時４６分