Mazda 2007 CX-9, Service Highlights

Page: 603 / 614

CONTROL SYSTEM
09-40–11
09-40
MS-CAN
Failure detection function
•
The failure detection function in each CAN system-related module detects malfunctions in input/output signals.
•
This function outputs the DTC for the detected malfunction to the DLC-2, and also sends the detected result to
the memory function and fail-safe function.
Fail-safe function
•
When the failure detection function determines that there is a malfunction, the fail-safe function illuminates a
warning light to inform the driver of the malfunction.
Memory function
•
The memory function stores the DTC for the malfunction of input/output signals for related parts, as determined
by the failure detection function.
Self-malfunction diagnostic function
•
The self-malfunction diagnostic function determines that there is a malfunction, and outputs a signal, as a DTC,
to the DLC-2. The DTC can be read out using the Mazda Modular Diagnostic System (M-MDS).
:
:
1Q
1O
Q R
L
K
3O
3P
CAN_H
CAN_L
DLC-2
J
L
AUDIO UNIT
(BASE MODULE)
HF/TEL UNIT
AUDIO
AMPLIFIER
INFORMATION
DISPLAY
INSTRUMENT PANEL
HARNESS
REAR
HARNESS
INSTRUMENT PANEL
HARNESS
INSTRUMENT PANEL
HARNESS
INTERIOR LIGHT
HARNESS
1I 1G
RES UNIT
1Q
1O
Q
R
L K
DLC-2
J
L
AUDIO UNIT
(BASE MODULE)
HF/TEL UNIT
INFORMATION
DISPLAY
INSTRUMENT PANEL
HARNESS
VEHICLE WITHOUT Bose
VEHICLE WITH Bose
R
R
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