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Circuit/System Testing

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. 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 I/P module
    • The SDM module
    • The I/P wiring harness connector
    • The SDM wiring harness connector
  1. Ignition OFF, disconnect I/P module in-line connector.
  2. Use J 38715-80 to connect the J 38715-A  to the harness side of the I/P module in-line wiring harness connector. See Special Tools . Use the PASSENGER INFLATOR and BASE of COLUMN connectors located on the load tool.
  3. Ignition ON, use a scan tool to observe the SIR DTC display. Verify DTC B0012, B0013, B0014, B0016, B0017, or B0018 is current.
    • If DTC B0012, B0013, B0014, B0016, B0017, or B0018 is history replace the I/P module.
  4. Ignition OFF, disconnect and remove the J 38715-A  and adapter. See Special Tools .
  5. Disconnect the SDM harness connector.
  6. Test the high and low circuits between the SDM and I/P module 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.
  7. If all circuits test normal then replace the SDM.
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