ON-BOARD DIAGNOSTIC [AIR BAG SYSTEM]
T–225
T
End Of Sie
2 INSPECT DRIVER-SIDE CURTAIN 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.
• Disconnect driver-side curtain air bag
module connector.
• Is there cracking or chipping in driver-side
curtain air bag module connector?
Yes Replace wiring harness.
No Go to next step.
3 VERIFY WHETHER MALFUNCTION IS IN
DRIVER-SIDE CURTAIN AIR BAG MODULE
OR RELATED WIRING HARNESS
• Connect leads of SST (Fuel and
thermometer checker) or apply 2 ohm
resistor to driver-side curtain 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)
— DO_D_CURT
• Is related wiring harness normal?
Yes Replace driver-side curtain air bag module.
(See T–122 CURTAIN 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 driver-side curtain air bag module
connector.
• Are DTCs B2773, B2774, B2775 and/or
B2776 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
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