Mazda CX-9 2007 Service Highlights page 345

08-02 ON-BOARD DIAGNOSTIC
ON-BOARD DIAGNOSTIC
FUNCTION OUTLINE . . . . . . . . . . . . . . 08-02–1
ON-BOARD DIAGNOSTIC
FUNCTION . . . . . . . . . . . . . . . . . . . . . . 08-02–1
End of Toc
NG: AIR BAG SYSTEM ON-BOARD DIAGNOSTIC FUNCTION OUTLINE
• The air bag system has an on-board diagnostic function to facilitate the system diagnosis.
• The on-board diagnostic function consists of the following functions: a malfunction detection function, which
detects overall malfunctions in the air bag system-related parts; a memory function, which stores detected
DTCs; a display function, which indicates system malfunctions by DTC display; a PID/data monitoring function,
which reads out specific input/output signals.
• Using the Mazda Modular Diagnostic System (M-MDS), DTCs can be read out and deleted, and the PID/data
monitoring function can be activated.
• The system has a fail-safe function to prevent the accidental activation of the air bags in case of an air bag
system malfunction.
End Of Sie
ON-BOARD DIAGNOSTIC FUNCTION
Self-Malfunction Diagnostic Function
Malfunction detection function
• Detects overall malfunctions in the air bag system-related parts.
Fail-safe function
• If the SAS control module performance/function cannot be maintained due to any cause, the fail-safe function
stops air bag system control and flashes the air bag system warning light to prevent the air bags from operating
(deploying) accidentally.
Memory function
• Stores malfunctions in the air bag system-related parts detected by the malfunction detection function, and the
stored malfunction contents are not cleared even if the ignition switch is turned to the LOCK position or the
negative battery cable is disconnection.
Display function
• When the malfunction detection function detects a malfunction, the air bag system warning light illuminates to
advise the driver. Using the external tester communication function, DTCs can be output to the DLC-2 via the
K-Line.
DTC table
Mazda Air bag system warning light
Modular
Diagnostic
System (M-
MDS)
display
B1013 16
B1046 24
B1047 22
B1048 21
ON-BOARD DIAGNOSTIC
DTC
Flashing pattern
Self-Malfunction
Diagnostic Function. . . . . . . . . . . . . . . 08-02–1
PID/Data Monitoring Function . . . . . . . . 08-02–7
Prior
System malfunction location
ity
ranki
ng
20 Seat weight sensor calibration error
Driver-side curtain air bag module and other air bag
19
module circuits short
Driver-side side air bag module and other air bag
17
module circuits short
Passenger-side air bag module (inflator No.1) and
12
other air bag module circuits short
id080200100100
id080200100500
08-02
08-02–1