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Circuit/System Testing

WARNING: This page is about a different car, the 2007 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: When removing connectors, inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector:
    • The seat belt retractor pretensioner - LF
    • The SDM module
    • The seat belt retractor pretensioner - LF wiring harness connector
    • The SDM wiring harness connector
  1. Ignition OFF, remove the lower center pillar trim and disconnect the seat belt retractor pretensioner - LF connector. Refer to Center Pillar Lower Garnish Molding Replacement .
  2. Use J 38715-30A adapter to connect the J 38715-A  to the harness side of the seat belt retractor pretensioner - LF wiring harness connector. See Special Tools . Use the PASSENGER INFLATOR connector located on the load tool.
  3. Ignition ON, use a scan tool to observe the SIR DTC display. Verify DTC B0015 is set current.
    • If DTC B0015 is history, replace the seat belt retractor pretensioner - LF.
  4. Ignition OFF, disconnect and remove both the J 38715-A  and adapter. See Special Tools . Then remove the SDM connector. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement (AG1/AG2)  or Inflatable Restraint Sensing and Diagnostic Module Replacement (AM6)  in Repair Instructions for connector location.
  5. Test the high and low circuits between the SDM and seat belt retractor pretensioner - LF for a short to voltage, short to ground, an open, or low resistance. Verify that a short to voltage, short to ground, or open/low resistance does not exist.
    • If any of the above conditions are found, make the appropriate repair.
  6. If all circuits test normal, replace the SDM.
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