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Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Chevrolet Malibu. 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. Connect scan tool to Data Link Connector (DLC), located under left side of instrument panel. Turn ignition on. Using scan tool, request SIR DTC display. If current DTC is retrieved, go to next step. If history DTC is retrieved, go to DIAGNOSTIC AIDS .
  3. Replace SDM. See SENSING & DIAGNOSTIC MODULE (SDM)  under REMOVAL & INSTALLATION. Road test vehicle, then check for SIR DTC's. If DTC B1000 resets, go to step  2. If DTC B1000 does not reset, system is okay. Go to SIR DIAGNOSTIC SYSTEM CHECK .
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