Mazda 6 2002, Workshop Manual

Page: 1122 / 1248

T–214
ON-BOARD DIAGNOSTIC [AIR BAG SYSTEM]
Diagnostic procedure
End Of Sie
STEP INSPECTION ACTION
1 INSPECT PASSENGER-SIDE SIDE AIR BAG
MODULE
•
Check following PID/DATA monitor, using
SST (WDS or equivalent).
(See T–195 PID/DATA MONITOR TABLE )
— PS_AB
•
Is resistant value of passenger-side side air
bag module normal?
— Resistance:
1.4—3.2 ohm
Yes Present malfunction diagnosis:
•
Replace SAS unit.
(See
T–124 SAS UNIT REMOVAL/INSTALLATION )
Past malfunction diagnosis:
•
Troubleshooting completed.
No Go to next step.
2 INSPECT PASSENGER-SIDE SIDE AIR BAG
MODULE CONNECTOR
Warning
•
Handling air bag system components
improperly can accidentally deploy air
bag modules and pre-tensioner seat
belts, which may seriously injure you.
Read AIR BAG SYSTEM SERVICE
WARNINGS before handling air bag
system components.
(See
T–117 SERVICE WARNINGS )
•
Turn ignition switch to LOCK position.
•
Disconnect negative battery cable and wait
for
more than 1 minute .
•
Remove passenger-side side air bag
module.
•
Is there cracking or chipping in passenger-
side side air bag module connector?
Yes Replace wiring harness.
No Go to next step.
3 VERIFY WHETHER MALFUNCTION IS IN
PASSENGER-SIDE SIDE AIR BAG MODULE
OR RELATED WIRING HARNESS
•
Connect leads of SST (Fuel and
thermometer checker) or apply 2 ohm
resistor to passenger-side side air bag
module connector terminal A and B.
•
Set resistance of SST (Fuel and
thermometer checker) to 2 ohm.
•
Connect negative battery cable.
•
Turn ignition switch to ON position.
•
Check following PID/DATA monitor, using
SST (WDS or equivalent).
(See T–195 PID/DATA MONITOR TABLE )
— DSB_P_ST
•
Is related wiring harness normal?
Yes Replace passenger-side side air bag module.
(See
T–121 SIDE AIR BAG MODULE REMOVAL/
INSTALLATION )
No Replace wiring harness, then go to next step.
4 INSPECT SAS UNIT
•
Turn ignition switch to LOCK position.
•
Disconnect negative battery cable and wait
for
more than 1 minute .
•
Connect passenger-side side air bag module
connector.
•
Are DTCs B1996, B1997, B1998 and/or
B1999 indicated?
Yes
Present malfunction diagnosis:
•
Replace SAS unit.
(See
T–124 SAS UNIT REMOVAL/INSTALLATION )
Past malfunction diagnosis:
•
Troubleshooting completed.
No Troubleshooting completed.