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Diagnostic Procedure

WARNING: This page is about a different car, the 2000 Buick Park Avenue. However, it is still accessible from the selected car via links, so may be relevant.
  1. If SIR Diagnostic System Check has been performed, go to next step. If SIR Diagnostic System Check has not been performed, go to SIR DIAGNOSTIC SYSTEM CHECK .
  2. Turn ignition off. If air bags have deployed, go to step  5. If air bags have not deployed, go to next step.
  3. Inspect front of vehicle and undercarriage for signs of impact or collision. If impact or collision has occurred, go to step  5. If no impact has occurred, go to next step.
  4. Install scan tool. Request SIR DTC display. If DTCs exist, refer to DIAGNOSTIC AIDS for specific DTC. Replace components and perform inspections as required following an accident. See POST-COLLISION INSPECTION .
  5. Reconnect all SIR components. Ensure that all components are properly mounted. Go to SIR DIAGNOSTIC SYSTEM CHECK .
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