Mazda 626 Station Wagon, Workshop Manual

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ON-BOARD DIAGNOSTIC
Diagnostic procedure
STEP INSPECTION ACTION
1
Note
• If occupancy sensor connector
(3 terminals) is located on bottom of
passenger's seat, vehicle has
passenger-side air bag cut-off function.
• Is vehicle equipped with passenger-side air
bag cut-off function?
Yes Go to next step.
No Present malfunction diagnosis:
Replace SAS unit.
(See T-59 SAS UNIT REMOVAL/INSTALLATION)
Past malfunction diagnosis:
Troubleshooting completed.
2 INSPECT WIRING HARNESS BETWEEN
OCCUPANCY SENSOR AND SAS UNIT
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 -56 SERVICE WARNINGS
• 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 driver and passenger-side side
air bag module connectors. (Vehicle with
side air bag)
• Remove B-pillar lower trim.
• Disconnect driver and passenger-side
pre-tensioner seat belt connector.
• Remove side walls.
• Disconnect all SAS unit connectors.
• Disconnect occupancy sensor connector.
• Inspect wiring harness between terminal B
of occupancy sensor connector and terminal
3H of SAS unit connector for following.
— Short to ground
• Is wiring harness okay?
Yes Present malfunction diagnosis:
Go to next step.
Past malfunction diagnosis:
Troubleshooting completed.
No Replace wiring harness.
3 VERIFY WHETHER MALFUNCTION IS IN
OCCUPANCY SENSOR OR SAS UNIT
• Connect all SAS unit connectors.
• Connect clock spring connector.
• Connect passenger-side side bag sensor
connector. (Vehicle with side air bag)
• Connect driver-side air bag module
connector.
• Connect driver- and passenger-side
pre-tensioner seat belt connectors.
• Connect negative battery cable.
• Turn ignition switch to ON position.
• Is DTC 44ndicated?
Yes Replace SAS unit.
(See T-59 SAS UNIT REMOVAL/INSTALLATION)
No Replace seat cushion.
(See Section S)
T-95