Mazda 6 2002 Workshop Manual page 1066

Diagnostic procedure
STEP
1 INSPECT PASSENGER-SIDE SIDE AIR BAG
MODULE
• Check following PID/DATA monitor, using
SST (WDS or equivalent).
(See T–195 PID/DATA MONITOR
— PS_AB
• Is resistant value of passenger-side side air
bag module normal?
— Resistance: 1.4—3.2 ohm
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
• 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?
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
— DSB_P_ST
• Is related wiring harness normal?
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?
End Of Sie
T–214
ON-BOARD DIAGNOSTIC [AIR BAG SYSTEM]
INSPECTION
TABLE)
WARNINGS)
TABLE)
Yes Present malfunction diagnosis:
• Replace SAS unit.
(See T–124 SAS UNIT
Past malfunction diagnosis:
• Troubleshooting completed.
No Go to net step.
Yes Replace wiring harness.
No Go to net step.
Yes Replace passenger-side side air bag module.
(See T–121 SIDE AIR BAG MODULE REMOVAL/
INSTALLATION)
No Replace wiring harness, then go to net step.
Yes Present malfunction diagnosis:
• Replace SAS unit.
(See T–124 SAS UNIT
Past malfunction diagnosis:
• Troubleshooting completed.
No Troubleshooting completed.
ACTION
REMOVAL/INSTALLATION)
REMOVAL/INSTALLATION)