Mazda 626 Station Wagon, Workshop Manual

Page: 506 / 577

ON-BOARD DIAGNOSTIC
STEP INSPECTION ACTION
3 VERIFY WHETHER MALFUNCTION IS IN
DRIVER-SIDE SIDE AIR BAG MODULE OR
OTHER PARTS
• Connect leads of SST (Fuel And
Thermometer checker) or apply 2 £i
resistor to driver-side side air bag module
connector terminals A and B.
• Set resistance of SST (Fuel And
Thermometer checker) to 2 £1
• Connect negative battery cable.
• Turn ignition switch to ON position.
• Is DTC 26 indicated?
Yes
Go to next step.
No Replace driver-side side air bag module.
(See Section T)
4 INSPECT WIRING HARNESS BETWEEN
DRIVER-SIDE SIDE AIR BAG MODULE
AND SAS UNIT
• Turn ignition switch to LOCK position.
• Disconnect negative battery cable and wait
for more than 1 minute.
• Remove clock spring.
(See Section T)
• Remove glove compartment.
• Disconnect passenger-side air bag module
connector.
• Disconnect passenger-side side air bag
module connector.
• Remove B-pillar lower trims.
• Disconnect driver and passenger-side pre-
tensioner seat belt connectors.
• Remove side walls.
• Disconnect all SAS unit connectors.
• Inspect following wiring harness between
SAS unit and driver-side side air bag
module terminals (harness side) for short
to ground, short to power supply, and open
circuit:
— 1Aand A
— 1C and B
• Are wiring harnesses okay?
Yes Present malfunction diagnosis:
• Remove SAS unit.
(See T-59 SAS UNIT REMOVAL/INSTALLATION)
Past malfunction diagnosis:
• Replace driver-side side air bag module.
(See Section T)
No Replace wiring harnesses.
T -8 4