Mazda 2009 5 Informations techniques Page 117

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Restraints Airbag System
On-Board Diagnostic System
Features
The OBD system of the airbag system allows bi-directional communication with M-MDS,
enabling a quicker and more precise diagnosis. It has the following new features:
Selftest (retrieving four digit DTCs stored for present and past malfunctions)
PID monitor
Self Test
The self-test function comprises displaying present and past four-digit DTCs by means of
M-MDS. To read out the DTCs of the SAS control module connect the M-MDS to the
vehicle and select the option ToolboxÆSelf TestÆModulesÆRCM.
The excerpt of the DTC table below shows that a malfunction, which is indicated by the
airbag system warning light with only one flashing pattern e.g. DTC 22, can actually have
several different root causes. A more detailed description of the root cause is only
displayed when performing the self test with M-MDS.
When a malfunction of the airbag system is present the warning light flashes a two-digit
DTC for ten times. Then the light stays illuminated. The flashing starts again when the
ignition is switched off and on.
Priority
ranking
B1933 21 7
Passenger-side air bag module circuit
resistance high
B1934 19 8
Driver-side air bag module circuit
resistance low
B1935 21 7
Passenger-side air bag module circuit
resistance low
B1992
Driver-side side air bag module circuit short
to power supply
B1993
Driver-side side air bag module circuit short
to ground
B1994
Driver-side side air bag module circuit
resistance high
B1995
Driver-side side air bag module circuit
resistance low
BT-50_T08001
Malfunction
M-MDS
display
Air bag system warning light
Flashing pattern
DTC
22 12
Service Training BT-50 08-7
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