Diagnostic procedure
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STEP
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INSPECTION
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ACTION
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1
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Is vehicle equipped with pre-tensioner seat belt?
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Yes
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Go to next step.
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No
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Replace SAS unit.
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2
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INSPECT OF DRIVER-SIDE PRE-TENSIONER SEAT BELT CONNECTOR
• Turn ignition switch to LOCK position.
• Disconnect negative battery cable and wait for more than 1 minute.
• Remove driver-side B-pillar lower trim.
• Disconnect driver-side pre-tensioner seat belt connector.
• Is there cracking or chipping in driver-side pre-tensioner seat belt connector?
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Yes
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Replace wiring harness.
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No
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Present malfunction diagnosis:
• Go to next step.
Past malfunction diagnosis:
• Go to Step 4.
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3
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VERIFY WHETHER MALFUNCTION IS IN DRIVER-SIDE PRE-TENSIONER SEAT BELT OR OTHER PARTS
• Connect leads of SST (Fuel And
Thermometer checker) or apply 2 W resistor to terminals A and B of driver-side
pre-tensioner seat belt connector.
• Set resistance of SST (Fuel And
Thermometer checker) to 2 W.
• Connect negative battery cable.
• Turn ignition switch to ON position.
• Is DTC 7 indicated?
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Yes
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Go to next step.
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No
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Replace driver-side pre-tensioner seat belt.
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4
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INSPECT WIRING HARNESS BETWEEN DRIVER-SIDE PRE-TENSIONER SEAT BELT ANS SAS UNIT
• Turn ignition switch to LOCK position.
• Disconnect negative battery cable and wait for more than 1 minute.
• Remove clock spring.
• 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 passenger-side B-pillar lower trim.(Vehicle with pre-tensioner seat belt)
• Disconnect passenger-side pre-tensioner seat belt connector.
• Turn up floor covering.
• Disconnect all SAS unit connectors.
• Inspect wiring harness between terminal 3A of SAS unit connector and terminal A of driver-side pre-tensioner seat belt connector, and between terminal 3C of SAS unit connector and terminal B of driver-side pre-tensioner seat belt connector for following.
• Are wiring harnesses okay?
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Yes
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Present malfunction diagnosis:
• Replace SAS unit.
Past malfunction diagnosis:
• Replace passenger-side pre-tensioner seat belt.
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No
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Replace wiring harness.
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