Mazda 6. Manual — part 80
T–96
AIR BAG SYSTEM
Operation
Before Activation (Normal Condition)
•
The spool has a pinion on its end, which rotates with the spool when the belt webbing is retracted or withdrawn.
•
There is a ring gear around the pinion. Because the pinion does not engage with the ring gear during normal
operation, the ring gear does not rotate even when the belt webbing is retracted or withdrawn.
.
During Activation
1. When the pre-tensioner seat belt system receives an operation signal from the SAS control module, gas is
produced from each generator forcing up the balls in the tube.
2. The balls shift, pushing the ring gear toward the pinion. Due to this, the ring gear and pinion are engaged.
3. The ball shifting makes the ring gear rotate. The pinion, coupled with the rotation of the ring gear, rotates the
spool in the direction of retraction. Thus the belt webbing is tightened.
.
A6E8130T012
1
Ring gear
2
Pinion
3
Spool
A6E8130T013
1
Gas generator
2
Gas
3
Ball
4
Pinion
5
Ring gear
AIR BAG SYSTEM
T–97
T
T
After Activation
1. Directly after the activation of the pre-tensioner seat belt system and the application of a load to the seat belt in
the direction of withdrawal, the ELR lock mechanism operates and the pawl engages the housing gear.
2. When a larger than specified load is applied to the seat belt with the locking base locked by the pawl, the
torsion bar twists. Thus the spool rotates and the belt webbing is withdrawn.
3. Because the spool rotates in the direction of withdrawal, the ring gear pushes the balls back and the pinion is
disengaged from the ring gear.
.
End Of Sie
ON-BOARD DIAGNOSTIC FUNCTION
A6E813001046T04
Outline
•
The on-board diagnostic function consists of the following functions: a failure detection function, which detects
malfunctions in the air bag system-related parts; a memory function, which stores detected DTCs; a self-
malfunction diagnostic function, which indicates system malfunctions using DTCs; a PID/data monitoring
function, which reads out specific input/output signals; and, an active command mode function, which actively
controls the operation of output parts.
•
Using an SST (WDS or equivalent), DTCs can be read out and deleted, and the PID/data monitoring function
and active command mode function can be activated.
•
A fail-safe function, which prevents the abrupt activation of the air bag module and the pre-tensioned seat belt
in case of an air bag system malfunction, is included.
•
The failure detection function, memory function, and fail-safe function are the same as that of the 626 (GF)
model.
A6E8130T014
1
Housing
2
Locking base
3
Pawl
4
Belt
5
Spool
6
Torsion bar
7
Pinion
8
Ring Gear
9
Ball
T–98
AIR BAG SYSTEM
Self-Malfunction Diagnostic Function
•
The self-malfunction diagnosis function determines that there is a malfunction, outputs a signal, as a DTC, to
the DLC-2, and at the same time, flashes the air bag system warning light to advise the driver of a malfunction.
•
The air bag system warning light illuminates or flashes to indicate a single DTC according to the present
malfunction. (If there is more than one present malfunction, only one DTC will be displayed according to the
preset priority ranking.)
•
The air bag system warning light will flash the DTC pattern for five cycles, and then will remain illuminated until
the ignition switch is turned to the LOCK position.
•
If both of the driver-side air bag module connectors are disconnected when SAS unit module configuration is
performed, the air bag system warning light will flash. Approx. 15 seconds after the connectors are properly
reconnected, the light will go out.
•
The self-malfunction diagnostic function consists of two function: present malfunction diagnostic and past
malfunction diagnostic. The function of present malfunction diagnostic and past malfunction diagnostic are the
same as that of the 626 (GF) model.
DTC table
DTC
Malfunction location
WDS or
equivalent
Air bag system warning light
Flashing pattern
Priority
ranking
B1231
13
3
SAS unit activation (deployment) control freeze
B1342
12
2
SAS unit
—
Air bag system warning light is illuminated all
the time.
1
SAS unit (DTC 12 detection circuit malfunction)
B1869
—
Air bag system warning light is illuminated all
the time.
1
Air bag system warning light system circuit open
—
Air bag system warning light is illuminated
does not illuminate.
—
Air bag system warning light system circuit short
to ground
B1870
—
Air bag system warning light is illuminated all
the time.
1
Air bag system warning light system circuit short
to power supply
B1871
47
19
Occupancy sensor system (communication error)
48
20
Occupancy sensor system (sensor internal circuit
abnormal)
B1877
33
13
Driver-side pre-tensioner seat belt system
resistance high
B1878
Driver-side pre-tensioner seat belt system circuit
short to power supply
B1879
Driver-side pre-tensioner seat belt system circuit
short to ground
B1881
34
12
Passenger-side pre-tensioner seat belt system
resistance high
B1882
Passenger-side pre-tensioner seat belt system
circuit short to power supply
B1883
Passenger-side pre-tensioner seat belt system
short to ground
B1884
18
18
Passenger-side air bag cut-off indicator light
system circuit open or short to ground
B1885
33
13
Driver-side pre-tensioner seat belt system
resistance low
AIR BAG SYSTEM
T–99
T
T
B1886
34
12
Passenger-side pre-tensioner seat belt system
resistance low
B1890
18
18
Passenger-side air bag cut-off indicator light
system circuit short to power supply
B1913
19
11
Driver-side air bag module (inflator No.1) system
circuit short to ground
21
10
Passenger-side air bag module (inflator No.1)
system circuit short to ground
B1916
19
11
Driver-side air bag module (inflator No.1) system
circuit short to power supply
B1921
14
4
Deployment prohibited because configuration is
not set
B1925
21
10
Passenger-side air bag module (inflator No.1)
system circuit short to power supply
B1932
19
11
Driver-side air bag module (inflator No.1) system
resistance high
B1933
21
10
Passenger-side air bag module (inflator No.1)
system resistance high
B1934
19
11
Driver-side air bag module (inflator No.1) system
resistance low
B1935
21
10
Passenger-side air bag module (inflator No.1)
system resistance low
B1992
22
15
Driver-side side air bag module system circuit
short to power supply
B1993
Driver-side side air bag module system circuit
short to ground
B1994
Driver-side side air bag module system resistance
high
B1995
Driver-side side air bag module system resistance
low
B1996
23
14
Passenger-side side air bag module system
circuit short to power supply
B1997
Passenger-side side air bag module system
circuit short to ground
B1998
Passenger-side side air bag module system
resistance high
B1999
Passenger-side side air bag module system
resistance low
DTC
Malfunction location
WDS or
equivalent
Air bag system warning light
Flashing pattern
Priority
ranking
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст