Mazda 2002 6 - Page 1119

ON-BOARD DIAGNOSTIC [AIR BAG SYSTEM]
T–211
T
End Of Sie
DTC B1921
A6E817401046W14
Diagnostic procedure
End Of Sie
3 VERIFY WHETHER MALFUNCTION IS IN
PASSENGER-SIDE AIR BAG MODULE
(INFLATOR NO.1) OR RELATED WIRING
HARNESS
• Connect leads of SST (Fuel and
thermometer checker) or apply 2 ohm
resistor to passenger-side air bag module
(inflator No.1) connector terminal A and B,
and passenger-side air bag module (inflator
No.2) 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)
— DO_PAB1ST
• Is related wiring harness normal?
Yes Replace passenger-side air bag module.
(See T–121 PASSENGER-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 air bag module
connector.
• Are DTCs B1913, B1925, B1933 and/or
B1935 indicated?
Yes
Present malfunction diagnosis:
• Replace SAS unit.
(See T–124 SAS UNIT REMOVAL/INSTALLATION)
Past malfunction diagnosis:
• Troubleshooting completed.
No Troubleshooting completed.
STEP INSPECTION ACTION
DTC B1921 Deployment prohibited because configuration is not set
DETECTION
CONDITION
Warning
• Detection conditions are for understanding DTC outline before performing inspection.
Performing inspection with only detection conditions may cause injury due to operating error
or damage the system. When performing inspection, always follow inspection procedure.
• SAS unit configuration has not been set
POSSIBLE
CAUSE
• SAS unit configuration has not been set
• SAS unit malfunction
INSPECTION ACTION
CONFIGRATION
• Configurate SAS unit, using SST (WDS or equivalent).
• Is DTC B1921 indicated?
Yes [Present malfunction diagnosis]
Replace SAS unit.
(See T–124 SAS UNIT REMOVAL/INSTALLATION)
[Past malfunction diagnosis]
Troubleshooting completed.
No Troubleshooting completed.