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Diagnostic Procedure

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. 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. If impact has occurred, go to step  5. If no impact has occurred, go to next step.
  4. Replace SDM. See SENSING & DIAGNOSTIC MODULE (SDM)  under REMOVAL & INSTALLATION. Go to step  6.
  5. Install scan tool to Data Link Connector (DLC), located under drive-side instrument panel, near steering column. Turn ignition on. Using scan tool, request SIR DTC display. If history DTC is retrieved by scan tool,refer to Diagnostic aids for displayed DTC. Replace components and perform inspections as required following an accident. See POST-COLLISION INSPECTION . Go to next step.
  6. Using scan tool, clear all SIR DTC's. Road test vehicle. If DTC resets, go to step  2. If DTC does not reset, go to SIR DIAGNOSTIC SYSTEM CHECK .
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