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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 99 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> Air Bag Indicator Circuit Malfunction >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, use the scan tool to request the SIR data list display. Observe the Battery Voltage Parameter. The battery voltage on the scan tool should read 9-16 volts.
  2. Using the scan tool go to Body and Accessories, then go onward to Special Functions to Instrument Panel Cluster and then go to Display Test. In the Display Test mode you can turn ON or OFF all the instrument panel indicators when commanded ON. Commanded the IPC indicators ON. The Air Bag indicator should turn ON.
    • If the Air Bag indicator does not turn ON replace the IPC.

      Note: The AIR BAG warning indicator is not serviceable separately. The IPC must be serviced/replaced as a complete unit.

  3. Replace the SDM. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement  in Repair Instructions.
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